**CABLE, SINGLE FIBER, MULTIMODE, SPACE QUALITY,** **GENERAL
SPECIFICATION FOR**

**SPECIFICATION CUSTODIAN:**

**THE** **BOEING COMPANY**

**SPACE AND COMMUNICATIONS DIVISION**

**2100 SPACE PARK DRIVE**

**HOUSTON TEXAS, 77058**

**CAGE CODE: 2B945**

**INTERNATIONAL SPACE STATION PROGRAM**

**SSQ 21654 Revision C**

**May 03, 1999**

**REVISION AND HISTORY PAGE**

+-----+----------------------------------------+-----------+-----------+
| REV | DESCRIPTION OF CHANGE                  | Author    | Approval  |
| LTR |                                        | and Date  | Signature |
+-----+----------------------------------------+-----------+-----------+
|     | BID ISSUE RELEASE                      | 3/1/90    | S. J.     |
|     |                                        |           | Stock     |
+-----+----------------------------------------+-----------+-----------+
| NEW | Completely revised and redrawn         | 10/9/91   | S. J.     |
|     |                                        |           | Stock     |
|     | Incorporated PDR RID comments,         | S. J.     |           |
|     |                                        | Stock     |           |
|     | Supplier comments and all              |           |           |
|     |                                        |           |           |
|     | applicable comments from all known     |           |           |
|     | sources.                               |           |           |
+-----+----------------------------------------+-----------+-----------+
| A   | See **Revision \"A\" Release           | 10/9/91   | S. J.     |
|     | Engineering Order** for the complete   |           | Stock     |
|     | details of the changes incorporated in | S. J.     |           |
|     | Revision A.                            | Stock     |           |
+-----+----------------------------------------+-----------+-----------+
| B   | Official PCB Release Version (include  | 7/2/96    | P. A.     |
|     | CR 21654-002, 21654-004 R1,            |           | Swartzell |
|     |                                        | K Roopwah |           |
|     | CR 21654-005 R2 and CR 21654-006)      |           |           |
+-----+----------------------------------------+-----------+-----------+
| C   | Revision C authorized by SSCN 00904.   | 5/14/99   | Curt      |
|     |                                        |           | Tallman   |
|     |                                        | J. A.     |           |
|     |                                        | White     |           |
+-----+----------------------------------------+-----------+-----------+

  ------ ---------------------------------------------------- ------------
                                                              

                                                              

                                                              

                                                              

                                                              

                                                              
  ------ ---------------------------------------------------- ------------

**PREFACE**

SSQ 21654 Space Station Program, Cable, Single Fiber, Multimode, Space
Quality, General Specification, details the requirements and
characteristics for a single fiber cable with a glass optical fiber and
the appropriate processes, procedures and tools.

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Program Manager (or delegated authority) Date

Space Station Program

**SPACE STATION PROGRAM OFFICE**

**CABLE, SINGLE FIBER, MULTIMODE, SPACE QUALITY**

**GENERAL SPECIFICATION**

**CONCURRENCE**

PREPARED BY: PRINT NAME ORGANIZATION

SIGNATURE DATE

CHECKED BY: PRINT NAME ORGANIZATION

SIGNATURE DATE

SUPERVISED BY: PRINT NAME ORGANIZATION

SIGNATURE DATE

DQA \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

PRINT NAME DATE

\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ SIGNATURE DATE

**TABLE OF CONTENTS**

1.0 Scope 1-[1](#scope)

1.1 Purpose 1-[1](#purpose)

1.2 Intent 1-[1](#intent)

1.3 Interconnect System 1-[1](#interconnect-system)

1.3.1 Tools, Processes, And Procedures
1-[1](#tools-processes-and-procedures)

1.4 Classification 1-[2](#__RefHeading___Toc450449012)

1.5 Document Generation 1-[2](#document-generation)

1.6 Configuration Management 1-[2](#configuration-management)

1.6.1 Specification Changes 1-[2](#specification-changes)

1.6.2 Specification Distribution 1-[2](#specification-distribution)

1.6.3 Procuring Activity 1-[2](#procuring-activity)

1.7 Specification Custodian 1-[3](#__RefHeading___Toc450449018)

1.8 Approved Sources 1-[3](#approved-sources)

2.0 Applicable Documents 2-[1](#applicable-documents)

2.1 Government Documents 2-[1](#government-documents)

2.1.1 Specifications 2-[1](#specifications)

2.1.1.1 Federal 2-[1](#__RefHeading___Toc450449023)

2.1.1.2 Military 2-[1](#__RefHeading___Toc450449024)

2.1.2 Standards 2-[1](#standards)

2.1.2.1 Federal. 2-[1](#__RefHeading___Toc450449026)

2.1.2.2 Military. 2-[2](#__RefHeading___Toc450449027)

2.2 Other Publications 2-[2](#__RefHeading___Toc450449028)

2.3 Order Of Precedence -- Deleted 2-[2](#order-of-precedence-deleted)

2.4 Interpretation 2-[3](#interpretation)

2.5 Communications 2-[3](#communications)

3.0 Requirements 3-[1](#requirements)

3.1 Item Description 3-[1](#item-description)

3.2 General Requirements 3-[1](#general-requirements)

3.2.1 Data Required For Design Approval
3-[1](#data-required-for-design-approval)

3.2.1.1 Cross-Sectional Drawings 3-[1](#cross-sectional-drawings)

3.2.1.2 Exceptions And Deviations 3-[1](#exceptions-and-deviations)

3.2.2 Data Required For Final Design Approval
3-[1](#data-required-for-final-design-approval)

3.2.2.1 Test Procedures 3-[1](#test-procedures)

3.2.2.1.1 Qualification Test Procedures
3-[1](#qualification-test-procedures)

3.2.2.1.1.1 Qualification Test Lengths
3-[2](#__RefHeading___Toc450449041)

3.2.2.1.1.2 Qualification Inspection Routine
3-[2](#__RefHeading___Toc450449042)

3.2.2.1.1.3 Qualification Test Discrepancy
3-[2](#__RefHeading___Toc450449043)

3.2.2.1.1.4 Qualification Test Failure
3-[2](#__RefHeading___Toc450449044)

3.2.2.1.1.5 Qualification Reports 3-[2](#__RefHeading___Toc450449045)

3.2.2.1.1.5.1 Qualification By Similarity
3-[3](#__RefHeading___Toc450449046)

3.2.2.1.1.5.2 Qualification By Analysis
3-[3](#__RefHeading___Toc450449047)

3.2.2.1.1.6 Qualification Test Sample Disposition
3-[3](#__RefHeading___Toc450449048)

[1](#__RefHeading___Toc450449049)

TABLE OF CONTENTS (continued)

3.2.2.1.2 Acceptance Test Procedures 3-[4](#__RefHeading___Toc450449049)

3.2.2.1.3 Discrepancy/Failure Analysis
3-[4](#discrepancyfailure-analysis)

3.2.2.2 Qualification Test Reports - Deleted And Moved To 3.2.2.1.1.5
3-[4](#qualification-test-reports---deleted-and-moved-to-3.2.2.1.1.5)

3.2.2.3 Top Assembly Drawings 3-[4](#__RefHeading___Toc450449052)

3.2.2.4 Materials List 3-[4](#materials-list)

3.2.3 Baseline Configuration Control
3-[4](#baseline-configuration-control)

3.2.3.1 Baseline Control Document 3-[4](#baseline-control-document)

3.2.3.2 Baseline Control Deviations 3-[5](#__RefHeading___Toc450449056)

3.3 Materials - Deleted 3-[5](#materials---deleted)

3.3.1 General - Deleted 3-[5](#general---deleted)

3.3.2 Fungus -- Deleted And Moved To 3.9.1
3-[5](#fungus-deleted-and-moved-to-3.9.1)

3.3.3 Offgassing/Toxicity, Odor, Flammability, And Outgassing - Deleted
3-[5](#offgassingtoxicity-odor-flammability-and-outgassing---deleted)

3.3.3.1 Offgassing/Toxicity -- Deleted And Moved To 3.9.2
3-[5](#__RefHeading___Toc450449061)

3.3.3.2 Odor -- Deleted And Moved To 3.9.3
3-[5](#odor-deleted-and-moved-to-3.9.3)

3.3.3.3 Flammability -- Deleted And Moved To 3.9.4
3-[5](#flammability-deleted-and-moved-to-3.9.4)

3.3.3.4 Outgassing (Vacuum Stability) -- Deleted And Moved To 3.9.5
3-[5](#outgassing-vacuum-stability-deleted-and-moved-to-3.9.5)

3.3.3.5 Atomic Oxygen Effects (4.10.6) - Deleted
3-[5](#atomic-oxygen-effects-4.10.6---deleted)

3.4 Design And Construction - Deleted
3-[5](#design-and-construction---deleted)

3.4.1 Optical Fiber -- Deleted And Moved To 3.11.1
3-[5](#optical-fiber-deleted-and-moved-to-3.11.1)

3.4.1.1 Optical Fiber Buffer -- Deleted And Moved To 3.10.1.2
3-[5](#optical-fiber-buffer-deleted-and-moved-to-3.10.1.2)

3.4.2 Cable -- Deleted And Moved To 3.11.2
3-[5](#__RefHeading___Toc450449069)

3.4.2.1 Strength Member -- Deleted And Moved To 3.11.2.2
3-[5](#strength-member-deleted-and-moved-to-3.11.2.2)

3.4.2.2 Cable Jacket -- Deleted And Moved To 3.11.2.3
3-[5](#cable-jacket-deleted-and-moved-to-3.11.2.3)

3.4.2.3 Color -- Deleted And Moved To 3.11.2.4
3-[5](#color-deleted-and-moved-to-3.11.2.4)

3.4.2.4 Lengths And Splices -- Deleted And Moved To 3.11.2.5
3-[5](#lengths-and-splices-deleted-and-moved-to-3.11.2.5)

3.4.2.5 Cable Weight -- Deleted And Moved To 3.10.6
3-[5](#cable-weight-deleted-and-moved-to-3.10.6)

3.5 Physical -- Deleted And Moved To 3.11
3-[6](#physical-deleted-and-moved-to-3.11)

3.5.1 Fiber -- Deleted And Moved To 3.11.1
3-[6](#__RefHeading___Toc450449076)

3.5.1.1 Numerical Aperture -- Deleted And Moved To 3.8.1
3-[6](#__RefHeading___Toc450449077)

3.5.1.2 Optical Fiber Bandwidth -- Deleted And Moved To 3.8.2
3-[6](#__RefHeading___Toc450449078)

3.5.2 Cable -- Deleted And Moved To 3.11.2
3-[6](#__RefHeading___Toc450449079)

3.5.2.1 Attenuation Rate -- Deleted And Moved To 3.8.3
3-[6](#attenuation-rate-deleted-and-moved-to-3.8.3)

3.5.2.2 Attenuation Measurements -- Deleted And Moved To 3.8.3
3-[6](#attenuation-measurements-deleted-and-moved-to-3.8.3)

3.5.2.2.1 Induced Attenuation -- Deleted And Moved To 3.8.3.2
3-[6](#induced-attenuation-deleted-and-moved-to-3.8.3.2)

3.5.2.3-2.2 Substitution Loss -- Deleted And Moved To 3.8.3.1
3-[6](#substitution-loss-deleted-and-moved-to-3.8.3.1)

3.5.-33 Radiation Resistance -- Deleted And Moved To 3.9.6
3-[6](#radiation-resistance-deleted-and-moved-to-3.9.6)

3.3-5.4 Thermal Shock -- Deleted And Moved To 3.9.7
3-[6](#thermal-shock-deleted-and-moved-to-3.9.7)

3-3.5.5 Survival Temperature (Cr21654-005 Rev. 1) -- Deleted And Moved
To 3.9.8
3-[6](#survival-temperature-cr21654-005-rev.-1-deleted-and-moved-to-3.9.8)

3.5.6 Crush (Cr21654-005 Rev 1) -- Deleted And Moved To 3.10.4
3-[6](#crush-cr21654-005-rev-1-deleted-and-moved-to-3.10.4)

3.5.7 Cable Bend -- Deleted And Moved To 3.10.5
3-[6](#cable-bend-deleted-and-moved-to-3.10.5)

3.5.8 Jacket Shrinkage -- Deleted And Moved To 3.11.2.3.2
3-[6](#jacket-shrinkage-deleted-and-moved-to-3.11.2.3.2)

3.5.9 Vacuum - Deleted 3-[6](#vacuum---deleted)

TABLE OF CONTENTS (continued)

3.6 Identification Marking (4.10.7) 3-[6](#__RefHeading___Toc450449091)

3.6.1 Durability Of Identification - Deleted
3-[7](#durability-of-identification---deleted)

3.7 Workmanship (4.10.7) 3-[7](#__RefHeading___Toc450449093)

3.8 Optical 3-[7](#optical)

3.8.1 Numerical Aperture 3-[7](#numerical-aperture)

3.8.2 Optical Bandwidth 3-[7](#__RefHeading___Toc450449096)

3.8.3 Attenuation Rate (4.10.12) 3-[7](#__RefHeading___Toc450449097)

3.8.3.1 Substitution Loss (4.10.12.4)
3-[8](#__RefHeading___Toc450449098)

3.8.3.2 Induced Attenuation (4.10.12.3)
3-[8](#__RefHeading___Toc450449099)

3.9 Environmental 3-[8](#__RefHeading___Toc450449100)

3.9.1 Fungus 3-[8](#fungus)

3.9.2 Toxicity 3-[8](#toxicity)

3.9.2.1 By Analysis 3-[8](#by-analysis)

3.9.2.2 By Test 3-[9](#by-test)

3.9.3 Odor 3-[9](#odor)

3.9.3.1 By Analysis 3-[9](#by-analysis-1)

3.9.3.2 By Test 3-[9](#by-test-1)

3.9.4 Flammability 3-[9](#__RefHeading___Toc450449108)

3.9.5 Outgassed Products/Vacuum Stability
3-[10](#outgassed-productsvacuum-stability)

3.9.5.1 By Analysis 3-[10](#by-analysis-2)

3.9.5.2 By Test 3-[10](#by-test-2)

3.9.6 Radiation Resistance 3-[10](#__RefHeading___Toc450449112)

3.9.7 Thermal Shock 3-[11](#__RefHeading___Toc450449113)

3.9.8 Survival Temperature/Vacuum 3-[11](#survival-temperaturevacuum)

3.10 Mechanical 3-[11](#mechanical)

3.10.1 Strippability 3-[11](#strippability)

3.10.1.1 Cable Buffer Strippability 3-[12](#__RefHeading___Toc450449117)

3.10.1.2 Fiber Buffer Strippability (4.10.7.7)
3-[12](#fiber-buffer-strippability-4.10.7.7)

3.10.1.3 Cable Jacket Strippability (4.10.7.7)
3-[12](#cable-jacket-strippability-4.10.7.7)

3.10.2 Fiber Proof Test 3-[12](#fiber-proof-test)

3.10.3 Cycling Flexing (4.10.20) 3-[12](#__RefHeading___Toc450449121)

3.10.4 Crush 3-[12](#crush)

3.10.5 Cable Bend 3-[13](#cable-bend)

3.10.6 Cable Weight 3-[13](#__RefHeading___Toc450449124)

3.11 Physical 3-[13](#physical)

3.11.1 Fiber And Fiber Buffer 3-[13](#fiber-and-fiber-buffer)

3.11.1.1 Fiber Core (4.10.7.4.3) 3-[13](#__RefHeading___Toc450449127)

3.11.1.2 Fiber Clad (4.10.7.4.3) 3-[13](#fiber-clad-4.10.7.4.3)

3.11.1.3 Fiber Coating (4.10.7.4.3) 3-[13](#fiber-coating-4.10.7.4.3)

3.11.2 Cable (4.10.7) 3-[13](#cable-4.10.7)

3.11.2.1Cable Buffer (If Applicable) (4.10.7)
3-[14](#cable-buffer-if-applicable-4.10.7)

3.11.2.2 Cable Strength Member (4.10.7)
3-[14](#cable-strength-member-4.10.7)

3.11.2.3 Cable Jacket (4.10.7) 3-[14](#cable-jacket-4.10.7)

TABLE OF CONTENTS (continued)

3.11.2.3.1 Cable Jacket Outside Diameter (4.10.7)
3-[14](#__RefHeading___Toc450449134)

3.11.2.3.2 Cable Jacket Stability 3-3-[14](#__RefHeading___Toc450449135)

3.11.2.4 Cable Jacket Color (4.10.7)
3-[14](#__RefHeading___Toc450449136)

3.11.2.5 Lengths And Splices 3-[14](#__RefHeading___Toc450449137)

4.0 Quality Assurance Provisions 4-[1](#__RefHeading___Toc450449138)

4.1 General 4-[1](#general)

4.2 Responsibility For Inspection 4-[1](#responsibility-for-inspection)

4.2.1 Contractor Responsibilities 4-[1](#contractor-responsibilities)

4.2.2 Test Equipment And Inspection Facilities
4-[2](#test-equipment-and-inspection-facilities)

4.2.3 Test Equipment Error 4-[2](#test-equipment-error)

4.3 Product Assurance Program 4-[2](#product-assurance-program)

4.3.1 Quality And Reliability Assurance Plan
4-[2](#quality-and-reliability-assurance-plan)

4.3.2 Critical Hardware Notation 4-[2](#critical-hardware-notation)

4.3.3 Flowchart - Deleted 4-[3](#__RefHeading___Toc450449147)

4.3.4 Failure Mode Effects Analysis - Deleted
4-[3](#failure-mode-effects-analysis---deleted)

4.3.5 Discrepancy/Failure Analysis - Deleted And Moved To 3.2.2.1.3
4-[3](#__RefHeading___Toc450449149)

4.3.6 Disposition And Corrective Action
4-[3](#__RefHeading___Toc450449150)

4.3.7 On Orbit Discrepancy/Failure Report Activity - Deleted
4-[3](#on-orbit-discrepancyfailure-report-activity---deleted)

4.3.8 Product History And Database - Deleted
4-[3](#product-history-and-database---deleted)

4.3.8.1 History - Deleted 4-[3](#history---deleted)

4.3.8.2 Database - Deleted 4-[3](#database---deleted)

4.4 Inspection And Test 4-[3](#inspection-and-test)

4.4.1 Qualification Inspection -- Deleted And Moved To 3.2.2.1.1.2
4-[3](#qualification-inspection-deleted-and-moved-to-3.2.2.1.1.2)

4.5 Inspection Conditions -- Deleted
4-[3](#inspection-conditions-deleted)

4.6 Preparation Of Optical Test Samples
4-[4](#__RefHeading___Toc450449158)

4.7 Materials Inspection 4-[4](#materials-inspection)

4.8 Qualification Inspection -- Deleted And Moved To 3.2.2.1.1.2
4-[4](#qualification-inspection-deleted-and-moved-to-3.2.2.1.1.2-1)

4.8.1 Qualification -- Deleted And Moved To 3.2.2.1.1.2
4-[4](#__RefHeading___Toc450449161)

4.8.1.1 Sample Unit Length -- Deleted And Moved To 3.2.2.1.1.1
4-[4](#__RefHeading___Toc450449162)

4.8.1.2 Inspection Routine -- Deleted And Moved To 3.2.2.1.1.2
4-[4](#__RefHeading___Toc450449163)

4.8.2 Qualification Test Procedure -- Deletedand Moved To 3.2.2.1.1
4-[4](#__RefHeading___Toc450449164)

4.8.3 Qualification Test Discrepancy -- Deleted And Moved To 3.2.2.1.1.3
4-[4](#qualification-test-discrepancy-deleted-and-moved-to-3.2.2.1.1.3)

4.8.4 Qualification Test Failure -- Deleted And Moved To 3.2.2.1.1.4
4-[4](#qualification-test-failure-deleted-and-moved-to-3.2.2.1.1.4)

4.8.5 Qualification Test Report -- Deleted And Moved To 3.2.2.1.1.5
4-[4](#qualification-test-report-deleted-and-moved-to-3.2.2.1.1.5)

4.8.6 Disposition Of Test Samples -- Deleted And Moved To 3.2.2.1.1.6
4-[4](#disposition-of-test-samples-deleted-and-moved-to-3.2.2.1.1.6)

4.8.7 Qualification By Similarity - Deleted And Moved To 3.2.2.1.1.5.1
4-[4](#__RefHeading___Toc450449169)

4.8.8 Qualification By Analysis -- Deleted And Moved To 3.2.2.1.1.5.2
4-[4](#__RefHeading___Toc450449170)

4.9 Product Acceptance Test 4-[4](#product-acceptance-test)

4.9.1 Acceptance Of Product For Delivery
4-[4](#acceptance-of-product-for-delivery)

4.9.2 Unit Of Manufacture 4-[5](#unit-of-manufacture)

4.9.3 Sample Unit 4-[5](#sample-unit)

4.9.4 Product Acceptance Test Procedures - Deleted
4-[5](#product-acceptance-test-procedures---deleted)

4.9.5 Destructive Physical Analysis (Dpa) - Deleted
4-[5](#destructive-physical-analysis-dpa---deleted)

TABLE OF CONTENTS (continued)

4.9.6 Receiving Inspection - Deleted
4-[5](#receiving-inspection---deleted)

4.10 Methods Of Inspection - Deleted
4-[5](#methods-of-inspection---deleted)

4.10.1 Fungus (3.3.2) -- Deleted And Moved To 3.9.1
4-[5](#fungus-3.3.2-deleted-and-moved-to-3.9.1)

4.10.2 Offgassed Products Test (3.3.2) - Deleted And Moved To 3.9.2
4-[5](#offgassed-products-test-3.3.2---deleted-and-moved-to-3.9.2)

4.10.3 Odor Test -- Deleted And Moved To 3.9.3
4-[5](#odor-test-deleted-and-moved-to-3.9.3)

4.10.4 Flammability -- Deleted And Moved To 3.9.4
4-[5](#flammability-deleted-and-moved-to-3.9.4-1)

4.10.5 Outgassed Products Test -- Deleted And Moved To 3.9.5
4-[5](#__RefHeading___Toc450449183)

4.10.6 Atomic Oxygen Effects - Deleted
4-[5](#atomic-oxygen-effects---deleted)

4.10.7 Visual And Mechanical Examinations
4-[5](#visual-and-mechanical-examinations)

4.10.7.1 General 4-[5](#general-1)

4.10.7.2 Test Equipment 4-[5](#test-equipment)

4.10.7.3 Test Specimen 4-[6](#test-specimen)

4.10.7.4 Test Procedure 4-[6](#test-procedure)

4.10.7.4.1 Visual Examination 4-[6](#__RefHeading___Toc450449190)

4.10.7.4.2 Mechanical Examination 4-[6](#mechanical-examination)

4.10.7.4.3 Fiber And Coating Examination (3.11.1)
4-[7](#fiber-and-coating-examination-3.11.1)

4.10.7.5 Cable Weight -- Deleted And Moved To 3.10.6
4-[7](#cable-weight-deleted-and-moved-to-3.10.6-1)

4.10.7.6 Durability Of Color Markings - Deleted
4-[7](#__RefHeading___Toc450449194)

4.10.7.6.1 Durability Testing Apparatus - Deleted
4-[7](#durability-testing-apparatus---deleted)

4.10.7.6.2 Durability Testing Procedure - Deleted
4\--[7](#durability-testing-procedure---deleted)

4.10.7.7 Fiber Buffer Strippability (3.10.1.2)
4-[7](#fiber-buffer-strippability-3.10.1.2)

4.10.8 Fiber Proof Test - Deleted And Moved To 3.10.2
4-[8](#fiber-proof-test---deleted-and-moved-to-3.10.2)

4.10.9 Numerical Aperture -- Deleted And Moved To 3.8.1
4-[8](#numerical-aperture-deleted-and-moved-to-3.8.1-1)

4.10.10 Optical Bandwidth -- Deleted And Moved To 3.8.2
4-[8](#optical-bandwidth-deleted-and-moved-to-3.8.2)

4.10.11 Attenuation Rate -- Deleted And Moved To 3.8.3
4-[8](#attenuation-rate-deleted-and-moved-to-3.8.3-1)

4.10.12 Attenuation Measurements 4-[8](#attenuation-measurements)

4.10.12.1 Optical Test Set 4\--[8](#__RefHeading___Toc450449203)

4.10.12.1.1 Light Source 4-[8](#light-source)

4.10.12.1.2 Source Monitoring Equipment (Sme) 4-[9](#section-236)

4.10.12.1.3 Detection Equipment 4-[9](#detection-equipment)

4.10.12.1.4 Reference Cable Set 4-[10](#reference-cable-set)

4.10.12.1.5 Mtc Cable 4-[10](#mtc-cable)

4.10.12.2 Optical Test Set Calibration
4-[10](#optical-test-set-calibration)

4.10.12.2.1 Meter And Source Calibration Using The Mtc Cable
4-[10](#meter-and-source-calibration-using-the-mtc-cable)

4.10.12.2.2 Srd Cable Set Calibration
4-[10](#__RefHeading___Toc450449211)

4.10.12.3 Induced Loss (3.8.3.2) 4-[11](#induced-loss-3.8.3.2)

4.10.12.3.1 Optical Measurements 4-[11](#optical-measurements)

4.10.12.3.2 Test Set-Up 4-[12](#test-set-up)

4.10.12.3.3 Test Procedure 4-[12](#test-procedure-1)

4.10.12.3.4 Induced Loss Calculations 4-[12](#induced-loss-calculations)

4.10.12.4 Substitution Loss (3.8.3.1) 4-[12](#substitution-loss-3.8.3.1)

4.10.12.4.1 Optical Measurements 4-[12](#optical-measurements-1)

4.10.12.4.2 Test Set-Up 4-[12](#__RefHeading___Toc450449219)

TABLE OF CONTENTS (continued)

4.10.12.4.3 Test Procedure 4-[13](#test-procedure-2)

4.10.12.4.4 Substitution Loss Calculations
4-[13](#substitution-loss-calculations)

4.10.13 Radiation Resistance - Deleted And Moved To 3.9.6
4-[13](#radiation-resistance---deleted-and-moved-to-3.9.6)

4.10.14 Thermal Shock -- Deleted And Moved To 3.9.7
4-[13](#thermal-shock-deleted-and-moved-to-3.9.7-1)

4.10.14.1 Test Equipment - Deleted 4-[13](#test-equipment---deleted)

4.10.14.2 Test Sample - Deleted 4-[13](#test-sample---deleted)

4.10.14.3 Test Setup - Deleted 4-[13](#test-setup---deleted)

4.10.14.4 Test Procedure - Deleted 4-[13](#test-procedure---deleted)

4.10.14.5 Test Documentation - Deleted
4-[13](#test-documentation---deleted)

4.10.15 Survival Temperature/Vacuum -- Deleted And Moved To 3.9.8
4-[13](#__RefHeading___Toc450449229)

4.10.16 Crush (3.10.4) - Deleted And Moved To 3.10.4
4-[13](#crush-3.10.4---deleted-and-moved-to-3.10.4)

4.10.16.1 Test Equipment - Deleted 4-[13](#test-equipment---deleted-1)

4.10.16.2 Test Sample - Deleted 4-[13](#test-sample---deleted-1)

4.10.16.3 Test Procedure - Deleted 4-[14](#test-procedure---deleted-1)

4.10.16.4 Test Documentation - Deleted
4-[14](#test-documentation---deleted-1)

4.10.17 Cable Bend- Deleted And Moved To 3.10.5
4-[14](#cable-bend--deleted-and-moved-to-3.10.5)

4.10.17.1 Test Equipment - Deleted 4-[14](#test-equipment---deleted-2)

4.10.17.2 Test Specimen -Deleted 4-[14](#test-specimen--deleted)

4.10.17.3 Test Procedure -- Deleted 4-[14](#__RefHeading___Toc450449238)

4.10.17.4 Test Documentation - Deleted
4-[14](#test-documentation---deleted-2)

4.10.18 Jacket Shrinkage -- Deleted And Moved To 3.11.2.3.2
4-[14](#jacket-shrinkage-deleted-and-moved-to-3.11.2.3.2-1)

4.10.18.1 Test Equipment -- Deleted 4-[14](#__RefHeading___Toc450449241)

4.10.18.2 Test Sample - Deleted 4-[14](#__RefHeading___Toc450449242)

4.10.18.3 Test Setup - Deleted 4-[14](#__RefHeading___Toc450449243)

4.10.18.4 Test Procedure - Deleted 4-[14](#__RefHeading___Toc450449244)

4.10.18.5 Test Documentation - Deleted
4-[14](#__RefHeading___Toc450449245)

4.10.19 Vacuum - Deleted 4-[14](#__RefHeading___Toc450449246)

4.10.19.1 Test Equipment - Deleted 4-[14](#test-equipment---deleted-3)

4.10.19.2 Test Sample - Deleted 4-[14](#test-sample---deleted-2)

4.10.19.3 Test Procedure - Deleted 4-[14](#test-procedure---deleted-2)

4.10.19.4 Test Documentation - Deleted
4-[14](#test-documentation---deleted-3)

4.10.20 Cycling Flexing (3.10.3) 4-[14](#cycling-flexing-3.10.3)

5.0 Preparation For Delivery 5-[1](#preparation-for-delivery)

5.1 Cleanliness 5-[1](#cleanliness)

5.2 Packaging Requirements 5-[1](#packaging-requirements)

5.3 Reels And Spools 5-[1](#reels-and-spools)

5.4 Product And Package Marking 5-[1](#product-and-package-marking)

5.4.1 Marking Of Reels And Spools 5-[1](#marking-of-reels-and-spools)

5.4.2 Space Station Critical Hardware
5-[2](#space-station-critical-hardware)

5.4.3 Packaging Labels 5-[2](#packaging-labels)

5.5 Unit Protection And Wrapping 5-[2](#unit-protection-and-wrapping)

5.6 Unit Packaging 5-[3](#unit-packaging)

5.7 Packing Containers 5-[3](#packing-containers)

TABLE OF CONTENTS (continued)

6.0 Notes 6-[1](#notes)

6.1 Part Numbers 6-[1](#__RefHeading___Toc450449264)

6.2 Approved Source(S) Of Supply 6-[1](#approved-sources-of-supply)

7.0 Requirements Verification Matrix 7-[1](#__RefHeading___Toc450449266)

Table of Appendixes

Appendix A Item Detail Specification A-1

Appendix B Cable Preparation For Termination Procedure - Deleted B-1

Appendix C1 Qualification Test Procedure -- Deleted C1-1

Appendix C2 Acceptance Test Procedures - Deleted C2-1

Appendix C3 Receiving Inspection Procedure - Deleted C3-1

Appendix C4 Procedure, Destructive Physical Analysis -Deleted C4-1

Appendix D Supplier Configuration Control Documentation -- Deleted D-1

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## LIST OF TABLES

Table I Classification of Test - Deleted 4-4

Table II Qualification Inspection - Deleted 4-5

Table III Acceptable Loss 3-[8](#__RefHeading___Toc433766123)

Table IV Flammability Test Requirement Details 3-10

Table V Outgassed Products/Vacuum Stability Test Conditions
3-[10](#__RefHeading___Toc433766124)

Table VI Far Field Output 4-[9](#table-v---far-field-output)

Table VII Equipment Resolution Requirements
4-[9](#__RefHeading___Toc433766128)

Table VIII Part Number Identification Table
6-[1](#__RefHeading___Toc433766129)

Table IX Requirements Verification Matrix
7-[1](#__RefHeading___Toc433766130)

Table A-I FIBER/CABLE DIMENSIONS A-[3](#table-a-1-fibercable-dimensions)

## LIST OF FIGURES

Figure 1 Optical Test Set-up For Vacuum Stability -- Deleted 4-14

Figure A-1 Cable Configuration A-4

# 1.0 SCOPE

# 1.1 Purpose

The purpose of this specification is to detail the requirements and
characteristics for a single fiber cable with a glass optical fiber and
the appropriate processes, procedures and tools. This cable is suitable
for service in a manned, zero gravity, low earth orbit for Space Station
with a minimum life expectancy of 10 years.

# 1.2 Intent

The SSQ 21654 cable specified herein is intended for use with the size
16 optical termini specified in SSQ 21635, SSQ 21636, and SSQ 21637 type
connector inserts and in environments that includes a space vacuum and a
normally pressurized habitat. This document is intended to serve as the
procurement specification. This cable will be installed in the
pressurized and unpressurized areas of the International Space Station.

# 1.3 Interconnect System

The fiber optic cable is part of an interconnect system that includes
fiber optic termini, connectors, accessories, wire and cable, tools,
assembly processes and procedures and, as such, are commonality color
coded to aid in their proper match in an effort to eliminate errors in
ground based factory or on orbit installation, assembly and repair.

The specific color assignments are usually found in the appendix which
contains the drawings of contacts, or in a table listing color
assignments by wire size or listed as a requirement with other detail
characteristics (fiber optic cable). For example, the fiber optic cable
defined in this SSQ is color coded violet and the fiber optic termini
used with this cable will have a violet stripe on the barrel to indicate
it is used with this cable. The contact will also have strips
designating the contact size and connector type. Anyone familiar with
the system can tell at a glance it is a correct combination.

# 1.3.1 Tools, processes, and procedures

Appendices are included within this specification providing tools and
fiber/cable stripping processes and procedures. Users with certified
tools and applicable processes and procedures in place need only
demonstrate that those tools, processes and procedures meet the
requirements applicable to the subject at hand.

Users without adequate tools and applicable processes and procedures are
provided with a list of tools and applicable processes and procedures
which will assure compliance to the requirements specified herein.

[]{#__RefHeading___Toc450449012 .anchor}1.4 Classification

Cable conforming to this specification and bearing the appropriate part
number designation shall be considered as Class S - Space Qualified.

# 1.5 Document generation

This specification, revision, text and graphics, is computer generated.
The text software is Microsoft® Word. This software contains conversion
capability for many major word processor programs. See the Microsoft®
Word user\'s reference.

# 

# 1.6 Configuration management

This NASA specification is under configuration management by the NASA
Space Station program, Johnson Space Center, Houston, Texas. Parts
defined by and manufactured to this specification are configuration
controlled by part number, **[NOT]{.underline}** by specification
revision letter.

# 

# 1.6. Specification changes

Changes to this specification shall be reviewed and approved by the NASA
International Space Station Program Office, or their designee, prior to
official release of the revision containing those changes.

# 

# 1.6.2 Specification distribution

Released copies of this specification are available from the
specification custodian and/or the NASA International Space Station
Program Office, Parts Control Board, Johnson Space Center, Houston,
Texas.

# 1.6.3 Procuring activity

The procuring activity is responsible for supplier negotiations dealing
with their procurement effort. This includes any development associated
with product not developed and tooled as part of the initial release of
this specification.

The procuring activity is responsible for the coordination of all
specification related issues with the specification custodian such that
development status and any related changes may be incorporated.

A development status data base shall be maintained by the specification
custodian and/or the NASA International Space Station Program Office
with the intent of incorporation in a program wide data base (EPIMS)
when available.

# 1.7 Specification custodian

# 

# 

# 

The contractor(s) shown on the title page of this specification have
been designated by the NASA International Space Station Program Office,
Johnson Space Center, Houston Texas as the specification custodian and
is tasked to generate this specification and provide related custodial
activities on behalf of NASA.

The specification custodian, in conjunction with the NASA Space Station
Program Office, Johnson Space Center, Houston Texas, or their designee,
is responsible for program coordination, supplier coordination,
technical evaluation and incorporation of comments, and final
preparation of revisions to this specification.

The specification custodian, with approval of the NASA Space Station
Program Office or their designee, may assign any portion, or all, of
these duties to any active participant in the Space Station program.

The specification custodian shall act in concert with the joint work
package connector board and the procuring activity, or as directed by
the NASA International Space Station Program Office or their designee,
in all issues regarding this specification.

# 

# 1.8 Approved sources

Approved suppliers shall allow user review of any and all listed
materials, processes, procedures, drawings, or any other item of
interest related to this specification, at the supplier's facility or
mutually agreed to location. Should disagreement arise, direction from
the NASA International Space Station Program Office via the
specification custodian shall be requested. The decision of the NASA
International Space Station Program Office shall be final.

It is intended that data deemed \"proprietary\" by the supplier shall be
protected to the best of the user's ability.

Approved Sources are documented in 6.0.

# 2.0 APPLICABLE DOCUMENTS

# 

# 2.1 Government documents

# 

The following documents, of the exact issue shown, or if no issue is
specified, the issue in effect at the date of invitation to bid, form a
part of this specification to the extent specified herein. In the event
of conflict between documents referenced here and the contents of 3.0,
4.0, 5.0, 10.0, and the associated Appendices, the requirements detailed
by this specification are considered the superseding requirements. See
1.0, scope.

# 2.1.1 Specifications

# 2.1.1.1 Federal

  ------------------ ----------------------------------------------------
  None               

  ------------------ ----------------------------------------------------

# 2.1.1.2 Military

  -------------------- ----------------------------------------------------
  JSC-SPEC-SP-R-0022   General Specification Vacuum Stability Requirements
                       of Polymeric Material for Spacecraft Applications

  NHB 5300.4 (3G)      Inspection System Provisions for Suppliers of Space
                       Materials, Parts, Components and Services

  NHB 8060.1B          Flammability, Odor and Offgassing Requirement Test
                       Procedures for Materials in Environments that
                       Support Combustion

  SSP 30233            Space Station Requirements for Materials and
                       Processes, General Specification for

  SSP 30512            Space Station Ionizing Radiation Design Environment

  MSFC-HDBK-527/ JSC   Materials Selection For Space Hardware Systems
  09604                
  -------------------- ----------------------------------------------------

# 

# 2.1.2 Standards

2.1.2.1 Federal

  ------------------ ----------------------------------------------------
  FED-STD-228        Cable and Wire, Insulated; Methods of Testing.

  ------------------ ----------------------------------------------------

# 

# 2.1.2.2 Military

  ------------------ ----------------- ----------------------------------------------------
  DOD-STD-1678       Fiber Optic Test  
                     Methods and       
                     Instrumentation   

  MIL-C-12000                          Cable, Cord, and Wire, Electric, Packaging of

  MIL-B-81705                          Barrier Materials, Flexible, Electrostatic-Free,
                                       Heat Sealable

  MIL-STD-104        Limits for        
                     Electrical        
                     Insulation Color  

  MIL-STD-129        Marking for       
                     Shipment and      
                     Storage.          

  MIL-STD-202        Test Methods for  
                     Electronic and    
                     Electrical        
                     Component Parts   

  MIL-STD-454        Standard General  
                     Requirements for  
                     Electronic        
                     Equipment         

  MIL-STD-810        Environmental     
                     Test Methods and  
                     Engineering       
                     Guidelines        

  MIL-STD-45662      Calibration       
                     Systems           
                     Requirements.     
  ------------------ ----------------- ----------------------------------------------------

(Copies of specifications and standards required by contractors in
connection with a specific acquisition should be obtained from the
contracting activity or as directed by the contracting activity.)

# 2.2 Other publications

The following documents form a part of this specification to the extent
specified herein:

**ELECTRONIC INDUSTRIES ASSOCIATION (EIA)**

  ------------------ ----------------------------------------------------
  EIA/TIA-455-13     Visual and Mechanical Inspections of Fibers, Cables,
                     Connectors and Other Fiber Optic Devices.(DOD
                     Adopted)

  EIA/TIA-455-20     Measurement of Change in Optical Transmittance.

  EIA/TIA-455-30     Frequency Domain Measurement of Multimode Optical
                     Fiber Information Transmission Capacity

  EIA/TIA-455-31B    Fiber Tensile Proof Test Method

  EIA/TIA-455-37A    Low or High Temperature Bend Test for Fiber Optic
                     Cables

  EIA/TIA-455-41A    Compressive Load Resistance of Fiber Optic

  EIA/TIA-455-45B    Method for Measuring Optical Fiber Geometry Using a
                     Laboratory Microscope

  EIA/TIA-455-46     Spectral Attenuation Measurement for Long-Length,
                     Graded Index Optical Fibers

  EIA/TIA-455-47B    Output Far-Field Radiation Pattern Measurements.
                     (DOD Adopted)

  EIA/TIA-455-60     Measurement of fiber or Cable Length Using an OTDR

  EIA/TIA-455-61     Measurement of Fiber or Cable Attenuation Using an
                     OTDR

  EIA/TIA-455-177A   Numerical Aperture Measurement of Graded-Index
                     Optical Fibers
  ------------------ ----------------------------------------------------

  ------------------ ----------------------------------------------------
                     

                     

                     

                     

                     

                     

                     

                     

                     

                     
  ------------------ ----------------------------------------------------

# 

# 2.3 Order of precedence -- deleted

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 2.4 Interpretation

Should the requirements of this specification and/or any associated
documents become subject to conflicting interpretation, clarification
shall be formally requested.

In the event of a conflict between the text of this specification and
the references cited herein, the text of this specification shall take
precedence.

# 2.5 Communications

All written communications shall be through the NASA International Space
Station Program Office, Johnson Space Center, Houston, Texas, the
specification custodian or the procuring activity. The procuring
activity shall be responsible for assuring program coordination (see
1.7).

# 3.0 REQUIREMENTS

# 3.1 Item description

The design, construction, and physical dimensions of the complete cable
and cable elements shall be as specified herein and in appendix A. The
cable shall consist of one optical transmission element surrounded by
protective layers to provide the dimensional centering, circularity, and
concentricity as specified. The cable shall be of a circular
cross-section and concentric geometry.

# 3.2 General requirements

# 3.2.1 Data required for design approval

Prospective suppliers shall submit one reproducible copy of the
following for technical evaluation:

# 3.2.1.1 Cross-sectional drawings

The cross-sectional drawing shall show all internal and external
dimensions and their tolerances; identification of all materials and
coatings (by chemical composition or by original manufacture's part
number) used in the construction of the cable; all methods for
processing the materials; the location and size of marking; the maximum
guaranteed weight. The drawing may be exaggerated dimensionally.

# 3.2.1.2 Exceptions and deviations

Prospective suppliers shall submit a list of exceptions to or deviations
from the conditions or requirements of the specification detailing by
paragraph number the specifics of exceptions or deviations and the
rationale or reasons thereof. The schedule and/or cost impact of not
allowing each exception or deviation shall be identified.

# 3.2. Data required for final design approval

# 3.2.2.1 Test procedures

Detailed qualification and acceptance test procedures shall be submitted
to and approved by the specification custodian prior to the start of
testing.

#  

# 3.2.2.1.1 Qualification test procedures

Detailed qualification test procedures shall be submitted for approval
by the specification custodian four weeks minimum prior to scheduled
start of qualification testing. The qualification test limits shall
include test margins to guarantee a 15 year service life in the
environments specified herein.

# 3.2.2.1.1.1 Qualification test lengths

Unless otherwise specified, the minimum sample unit length shall be 225
meters, and the sample size shall consist of one sample unit: 200 meters
shall be retained by the manufacturer for qualification tests and 25
meters shall be supplied to specification custodian to be forwarded to
NASA for materials testing.

# 3.2.2.1.1.2 Qualification inspection routine

The sample shall be subjected to the qualification inspection specified
in Table IX, however the order may change from that shown. Fiber
dimensional measurements must be performed prior to cabling and sample
lengths shall be as required for the individual measurement. In the
event of design change(s) in the cable, the qualifying activity reserves
the right to require additional inspection of the first unit which
reflects the design change. Qualification inspection shall be performed
on sample units produced with equipment and procedures normally used in
production at a laboratory acceptable to the government and the
specification custodian.

# 3.2.2.1.1.3 Qualification test discrepancy

Any discrepancy that occurs during testing shall be reported to the
specification custodian within 24 hours. Testing shall continue unless
otherwise advised by the specification custodian. The supplier shall
prepare a description of the discrepancy, an analysis of the cause,
corrective action proposed, and the extent of retest if applicable.

# 3.2.2.1.1.4 Qualification test failure

If a failure occurs during qualification tests, testing shall cease, the
supplier shall notify the specification custodian at once verbally and
shall follow-up with a written notification describing the cause of
failure and the proposed corrective action. Written specification
custodian approval of such action must be given prior to resumption of
testing.

# 3.2.2.1.1.5 Qualification reports

A detailed qualification test report shall be submitted for approval by
the specification custodian within four weeks following completion of
testing to provide a record that the articles tested comply with the
qualification test requirements of the specification. The report shall
be certified by an authorized representative of the company, and shall
contain the following information for which approval is requested:

a.  Certification of the fact that the test samples were in conformance
    with and tested to the

latest approved revision of the specification with respect to design,
construction,

materials, workmanship, marking, manufacturing processes and controls,
test procedures, etc.

b\. Dated and signed examination and test results verifying that the
samples complied with all the qualification test requirements of this
drawing including:

1\. Measured or observed test conditions at the time of test or
examination as required.

> 2\. All pertinent qualitative observations and quantitative values
> obtained by measurement, including oscillographs, recordings, charts,
> photographs, etc.
>
> 3\. Calculated values and sample calculations.
>
> 4\. References to applicable drawings or documents (design drawing,
> test procedure, Q.C. procedure, etc.) cross-correlated to the specific
> requirements and test method paragraph of this specification for each
> of the examination and test parameters itemized in Table IX.

# 3.2.2.1.1.5.1 Qualification by similarity

If a cable, which is similar in materials and construction to what is
specified herein, has previously been subjected to, and successfully
passed, tests which are the equivalent of those required herein, it may
be possible to utilize the previous tests in lieu of part or all of the
testing required by this specification. In such a case, the supplier may
submit a statement which identifies the similarities and differences
between the previously tested cable and the cable specified herein. The
statement should cover design features, construction and materials of
the cable to permit a competent evaluation of the similarity of the
cables and the validity of the comparison. The statement, together with
certified copies of the earlier tests reports, shall be submitted for
the specification custodian approval in advance of the start of
qualification testing. If approved, they shall also be included as part
of the qualification test report.

# 3.2.2.1.1.5.2 Qualification by analysis

Should any of the requirements be qualifiable by analytical processes
the supplier shall submit that analysis to the specification custodian
for approval in advance of the start of qualification testing. If
approved the analyses shall be included as part of the qualification
test report.

# 3.2.2.1.1.6 Qualification Test Sample Disposition

All test samples, or the remains thereof, shall be clearly identified as
qualification test samples, along with their appropriate part number.
The test samples shall then be protectively packaged and, unless
otherwise specified in the purchase contract, shipped to the
specification custodian in a container marked "Qualification Samples -
Do Not Use". The cable samples shall be conspicuously marked with at
least two red \"X\'s\" in a manner which does not obscure other
markings.

# 

#  

# 3.2.2.1.2 Acceptance test procedures

# 

# 

Detailed acceptance test procedures shall be submitted for approval by
the specification custodian six weeks minimum prior to scheduled start
of acceptance testing.

# 

# 3.2.2.1.3 Discrepancy/failure analysis

The manufacturer is responsible to provide complete failure analysis of
all failures. The analysis shall consist of an analysis plan, a
narrative of the analysis activity and full documentation of any
anomalies found, and recommend action.

Discrepancies/failures reported from any source shall be brought to the
attention of the specification custodian, or NASA designated technical
representative, within 5 working days of receipt by the manufacturer.
The manufacturer shall analyze each report and shall transmit their
recommended disposition or corrective action to the specification
custodian within 10 working days of receipt of the report. Review of the
proposed recommendations or corrective actions and notification of
acceptance status shall be provided to the manufacturer within 5 working
days of receipt of the report.

# 3.2.2.2 Qualification test reports - deleted and moved to 3.2.2.1.1.5

[]{#__RefHeading___Toc450449052 .anchor}3.2.2.3 Top assembly drawings

The final top assembly drawing identified in the baseline control
document shall be submitted to the specification custodian four weeks
maximum prior to the start of production.

# 3.2.2.4 Materials list

A complete list of materials, including material rating in accordance
with

MSFC-HDBK-527/JSC-09604, quantity and exposed surface area shall be
submitted four weeks prior to start of production.

# 3.2.3 Baseline configuration control

Configuration control will be accomplished by baseline control
documentation. The specification custodian shall approve the process
baseline control documentation prior to initiating manufacturing or
testing of products to be furnished under this specification.

# 

# 3.2.3.1 Baseline control document

The baseline control document shall be submitted to the specification
custodian for approval, four weeks maximum prior to the start of
production. The baseline control document shall be updated after each
requirement change.

# 

# 

# 3.2.3.2 Baseline control deviations

After final approval of the baseline control document, there shall be no
deviation without written approval of the specification custodian (see
1.6 and 1.7). All requests for deviation from the requirements of this
specification shall be submitted to the procuring activity procurement
department in writing and accompanied by thorough technical rationale.

# 

# 3.3 Materials - Deleted 

# 3.3.1 General - Deleted 

# 3.3.2 Fungus -- Deleted and moved to 3.9.1

# 3.3.3 Offgassing/toxicity, odor, flammability, and outgassing - Deleted

# 3.3.3.1 Offgassing/toxicity -- Deleted and moved to 3.9.2

# 3.3.3.2 Odor -- Deleted and moved to 3.9.3

# 

# 3.3.3.3 Flammability -- Deleted and moved to 3.9.4

# 3.3.3.4 Outgassing (vacuum stability) -- Deleted and moved to 3.9.5

# 3.3.4 Atomic oxygen effects (4.10.6) - Deleted 

# 

# 3.4 Design and construction - Deleted

# 3.4.1 Optical fiber -- Deleted and moved to 3.11.1

# 

# 3.4.1.1 Optical fiber buffer -- Deleted and moved to 3.10.1.2

# 3.4.2 Cable -- Deleted and moved to 3.11.2

# 3.4.2.1 Strength member -- Deleted and moved to 3.11.2.2

# 3.4.2.2 Cable jacket -- Deleted and moved to 3.11.2.3

# 3.4.2.3 Color -- Deleted and moved to 3.11.2.4

# 

# 3.4.2.4 Lengths and Splices -- Deleted and moved to 3.11.2.5

# 3.4.2.5 Cable weight -- Deleted and moved to 3.10.6

# 3.5 Physical -- Deleted and moved to 3.11 

# 3.5.1 Fiber -- Deleted and moved to 3.11.1

# 3.5.1.1 Numerical aperture -- Deleted and moved to 3.8.1

# 3.5.1.2 Optical fiber bandwidth -- Deleted and moved to 3.8.2

# 

# 3.5.2 Cable -- Deleted and moved to 3.11.2

# 3.5.2.1 Attenuation rate -- Deleted and moved to 3.8.3

# 3.5.2.2 Attenuation measurements -- Deleted and moved to 3.8.3

# 

# 

# 3.5.2.2.1 Induced attenuation -- Deleted and moved to 3.8.3.2

# 3.5.2.2.2 Substitution loss -- Deleted and moved to 3.8.3.1

# 3.5.3 Radiation resistance -- Deleted and moved to 3.9.6

# 

# 3.5.4 Thermal shock -- Deleted and moved to 3.9.7

# 3.5.5 Survival temperature (CR21654-005 rev. 1) -- Deleted and moved to 3.9.8

# 

# 

# 3.5.6 Crush (CR21654-005 rev 1) -- Deleted and moved to 3.10.4

# 3.5.7 Cable bend -- Deleted and moved to 3.10.5

# 3.5.8 Jacket shrinkage -- Deleted and moved to 3.11.2.3.2

# 

# 3.5.9 Vacuum - Deleted

# 3.6 Identification marking (4.10.7)

The finished cable shall be identified by an identification label
attached to the cable end opposite of the pay-out end and on the cable
spool. The identification label shall consist of the following
information:

1\. Specification sheet part number

2\. Manufacturer\'s code designation in accordance with publications
H4-1 and H4-2.

3\. Date Code

All printed characters shall be complete and legible. This information
may be applied to the cable jacket but it is not required to be
permanent nor legible at any time after the cable is marked.

[]{.mark}

# 3.6.1 Durability of identification - Deleted

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

  -------------------------------------------------- --------------------
                                                     

                                                     

                                                     

                                                     

                                                     
  -------------------------------------------------- --------------------

Induced loss measurement are used to determine the optical performance
of the test sample during the exposure to the test environment. Induced
loss measurement require that the test set be operational and connected
for the duration of the test. Induced loss measurements are as accurate
as the optical equipment ( []{#__RefHeading___Toc450449093 .anchor}3.7
Workmanship (4.10.7)

All details of workmanship shall be in accordance with high grade
optical fiber and cable manufacturing practice. Fiber coatings and
cables shall be dimensionally uniform, free of lumps, kinks, splits,
scraped or abraded surfaces and inclusions. The minimum level of visual
examination to be performed, unless otherwise specified, shall be as
specified in \"a.\" through \"d\".

This requirement is not intended to restrict other pertinent workmanship
examinations deemed necessary by the supplier.

> a\. Outer jacket: Free of cuts, burnt areas, abrasions, holes,
> roughened areas, bulges, thin spots and discontinuities.
>
> b\. Inner layers: Free of cuts, holes, bulges, thin spots, and
> discontinuities.
>
> c\. Strength members: Uniform, laid with no discontinuities.
>
> d\. Optical Fiber: The optical fiber and coating shall be continuos
> and without defect.

# 3.8 Optical

# 3.8.1 Numerical Aperture 

The numerical aperture of the fiber shall be in accordance with
specified in Appendix A. The fiber optic cable numerical aperture shall
be verified in accordance with EIA/TIA RS 455 FOTP 47 Method A. The
cable shall be 100 meters minimum and the test shall be run at 1300 30
nm.

# 3.8.2 Optical Bandwidth 

# 

The bandwidth of the fiber shall be as specified in appendix A. The
cable shall be measured for information transmission capacity in
accordance with EIA/TIA RS 455 FOTP 30. Report the operator, date, test
sample identification, test sample length, source wavelength and
results.

# 3.8.3 Attenuation rate (4.10.12)

The maximum attenuation rate (expressed in dB/Km) of cable shall be
equal to or less than 6 dB/Km at room temperature when the cable is new
and before and after any single or combination of tests. The maximum
allowable attenuation at 1300 30 nm shall be 6dB/Km. The spectral
attenuation shall be measured in accordance with EIA/TIA RS 455 FOTP 46.
The cable length shall be 1 Kilometer. The source shall be in accordance
with 4.10.12.1.1. The detector shall be in accordance with 4.10.12.3.
The test report shall include the title of test, date and name of
operator, measurement data, identification and length of fiber measured,
temperature, spectral attenuation and spectral attenuation rate.

# 3.8.3.1 Substitution loss (4.10.12.4)

Substitution loss measurements are used to determine the change in
optical performance due to the exposure to the test environment.
Substitution loss measurements allow the test equipment to be
disconnected from the test sample during the test. Substitution loss
measurement accuracy is limited to the connector remating repeatability
(for ST connectors the accuracy is about 0.07 dB). Unless specified in
the test requirement, the change in substitution loss measurements taken
before and after the exposure to the test shall not exceed 0.20 dB.

# 

# 3.8.3.2 Induced attenuation (4.10.12.3)

The maximum allowable increase in attenuation in the specimen during
exposure to an environmental condition or mechanical stress shall be as
follows in Table IV

**Table III - Acceptable Loss**

  ---------------------------------------------------- ------------------
  Exposure Condition                                   Allowable Change
                                                       ()

  Tests affecting long cable lengths (\>10m) (except   0.03 dB/Km
  survivability)                                       

  Survivability test                                   1 dB/Km

  Tests affecting short lengths (\<10m) (i.e. thermal  0.3 dB
  shock, crush and bend)                               

  After exposure to test condition measured at ambient 0.1 dB
  conditions                                           
  ---------------------------------------------------- ------------------

## 

[]{#__RefHeading___Toc450449100 .anchor}3.9 Environmental

The cable assembly definition is detailed in appendix A. Selected
materials shall comply with SSP 30233 and be of a type and quality to
assure compliance with the requirements of this specification, and shall
be physically and chemically compatible for their intended use and
throughout their intended lifetime.

# 3.9.1 Fungus 

Materials shall be fungus inert as defined by MIL-STD-454, Requirement
4. (Ref SSP 30233). Test in accordance with MIL-STD-810, Method 508.

# 3.9.2 Toxicity 

# 3.9.2.1 By analysis 

The toxicological summation of the total offgassed products for each
material that has been previously tested are documented in
MSFC-HDBK-527/JSC09604 or the Material and Process Technical Information
System (MAPTIS) electronic data base located at George C. Marshall Space
Flight Center, Huntsville, AL.

# 3.9.2.2 By Test 

The quantity and composition of each offgassed products produced from
the polymeric materials used in the cable shall not exceed the maximum
allowable concentration (MAC) levels defined by NHB 8060.1B. NASA or the
specification custodian shall conduct the testing in accordance with NHB
8060.1B.

# 3.9.3 Odor 

The nature and quantity of the odor product of any undiluted odor sample
material shall have an average rating of 2.5 or lower in accordance with
NHB 8060.1B.

# 3.9.3.1 By Analysis

The odor ratings for materials that have been previously tested are
documented in MSFC-HDBK-527/JSC09604 or the Material And Process
Technical Information System (MAPTIS) electronic data base located at
George C. Marshall Space Flight Center, Huntsville, Al.

# 3.9.3.2 By test

NASA or the specification custodian shall test in accordance with NHB
8060.1B.

# 3.9.4 Flammability 

The materials used in the cable shall be non-combustible or
self-extinguishing (Flammability Rating A as listed in
MSFC-HDBK-527/JSC09604). The test shall be performed in 30% oxygen and
70% nitrogen environment at a pressure of 10 PSIA. No sparking,
sputtering or dripping and or flaming particles are permitted.

The test details are in Table IV.

**Table** **IV** **- Flammability Test Requirement details**

+----------------------------+-----------------------------------------+
| **Test Requirement**       | **Test Detail**                         |
+----------------------------+-----------------------------------------+
| Self Extinguishing         | 15 cm (6 inches) maximum burn length    |
|                            |                                         |
|                            | 10 minute maximum burn time             |
+----------------------------+-----------------------------------------+
| Burn Events                | No sparking                             |
|                            |                                         |
|                            | No sputtering                           |
|                            |                                         |
|                            | No flaming dripping                     |
+----------------------------+-----------------------------------------+

# 3.9.5 Outgassed products/vacuum stability 

# 3.9.5.1 By analysis 

The data for total maximum loss (TML) and maximum volatile condensable
material (VCM) content of materials that have been previously tested is
documented in MSFC-HDBK-527/JSC09604 or the Materials And Process
Technical Information System (MAPTIS) electronic data base located at
George C. Marshall Space Flight Center, Huntsville, Al.

# 3.9.5.2 By test 

None of the finished cable components shall exceed a maximum total mass
loss (TML) of 1.0 percent mass and a maximum volatile condensable
material (VCM) content of 0.1 percent. NASA or the specification
custodian shall conduct the test in accordance with

JSC-SPEC-SP-R-0022.

The test shall be in accordance with JSC-SPEC-SP-R-0022 using the
details in Table V

**Table V -- Outgassed Products/Vacuum Stability Test Conditions**

  ------------------------------------- ---------------------------------
  Condition                             Limits

  Pressure                              10^-6^ torr maximum

  Specimen Temperature                  124C to 126C

  Condensable Plate Temperature         24C to 26C

  Vacuum exposure time                  24 hours
  ------------------------------------- ---------------------------------

[]{#__RefHeading___Toc433766124 .anchor}

  ------------------------ ----------------------------------------------
                           

                           

                           
  ------------------------ ----------------------------------------------

[]{#__RefHeading___Toc450449112 .anchor}3.9.6 Radiation resistance

The cable attenuation rate shall be less than 20 dB/Km when exposed to
Co-60 irradiation under the following conditions:

1\. Temperature of 25 degrees C

2\. A dose-rate of 0.1 rad(Si)/sec

3\. A total dose of 118 krad(Si), and

4\. A continuous optical signal between 1 and 10 microwatts and an
optical source

in accordance with paragraph 4.10.12.1.

1.  

# 

[]{#__RefHeading___Toc450449113 .anchor}3.9.7 Thermal shock

There shall be no cracking or melting of the coating materials and the
induced attenuation in a 200 meter test specimen shall not exceed 0.5 dB
when exposed to the operating temperature extremes of -121oC and +120o
C. The final loss shall not deviate more than 0.30 dB from the initial
measurement at room temperature. Thermal shock test shall be performed
in accordance with MIL-STD-202 method 107, to the following criteria:

1\. The temperature limits shall be -105C to -100C and +150C to 155C.

2.  The dwell times shall be 2 to 2.25 hours.

3.  The chamber shall be a circulating air, elevator type with a 2
    minute maximum temperature transition.

4.  The sample length shall be 200 meters, loosely coiled.

    5\. A maximum of 10 meters of cable may be in the chamber ports and
    outside of the chamber.

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6.  The optical power shall be measured in accordance with 4.10.12.3
    after the unit under test

    is installed in the test chamber, after the first and last cold
    temperature soaks and after

    the first and last hot temperature soaks.

7.  A 5X visual examination of 10 randomly selected coils shall be
    performed for cracks, blisters and splits in the materials.

    There shall be no cracking or melting of the coating materials and
    the induced attenuation of a test specimen shall meet paragraph
    3.8.3.2 when exposed to 10 cycles of thermal shock from -95o C /
    +135o C.

# 3.9.8 Survival temperature/vacuum 

The cable shall withstand temperature extremes of -135oC 3^o^C and
+157oC 7^o^C at a pressure not to exceed 1 X 10^-6^ torr for 72 hours.
The outer jacket shall show no cracking or other defects and the induced
attenuation change shall meet the requirements of 3.8.3.2 at 150C and
0.025 dB/meter at -132^o^C. The loss shall return to within 0.0075
dB/meter of the initial measurement after the test specimen returns to
ambient conditions. One sample may be used for both the hot and cold
exposures.

# 3.10 Mechanical

# 3.10.1 Strippability

The cable components (the jacket, strength member and cable buffer \[if
applicable\]) shall be hand removable using standard wire mechanical
strippers. The removal/preparation of any cable component shall not
affect any other cable component or stress the optical fiber in any way.

2.  []{#__RefHeading___Toc450449117 .anchor}3.10.1.1 Cable buffer
    strippability

The cable buffer shall be cut using Clauss NO-NIK with a cut diameter of
254 microns (0.010 inches). After the tool is removed the cut end of the
buffer tube shall be removable by hand without affecting the remaining
buffer tube or the fiber and its coating.

# 3.10.1.2 Fiber buffer strippability (4.10.7.7)

The fiber buffer shall be capable of withstanding a pull or push force
of 2.5 kilograms (5.5 pounds) over a length of 2.5 mm (0.1 inches)
without delaminating or debonding from the glass fiber.

# 3.10.1.3 Cable jacket strippability (4.10.7.7)

A five centimeters length of cable jacket shall be removable by hand
after it is circumferentially cut.

# 3.10.2 Fiber proof test 

The optical fiber shall be have a pull strength of 2.1 Kilograms (4.7
pounds). The fiber manufacturer shall incorporate a means of proof
testing the fiber to 200,000 PSI and assuring that all the fiber in a
given lot meets this requirement. A certificate of conformance is
required from the fiber manufacturer. To verify this requirement a
random selection of fiber shall be secured in a manner to allow 2 meters
of fiber to hang with a 2.1 Kilogram (4.7 pound) weight attached. The
load shall be applied for 24 hours.

3.  []{#__RefHeading___Toc450449121 .anchor}3.10.3 Cycling flexing
    (4.10.20)

    The cable shall withstand without damage 2000 cycles of 90 cyclic
    bending around a 0.5 inch mandrel in accordance with DOD-STD-1678
    METHOD 2010 Procedure 2. The induced attenuation shall not exceed
    0.5 dB during the test (measured when the cable is bent and 90) and
    shall return to within 0.1 dB of the initial value after the test
    exposure (measured when the cable is straight).

# 

# 

# 3.10.4 Crush 

Cable shall withstand a minimum 50 pound compressive loading in
accordance with EIA/TIA-455-41 using the following conditions:

a\. The load shall be 22.6 Kilograms (50 lbs.)

> b\. The load shall be applied for 60 seconds

c\. The load shall be applied and released in no less than 60 seconds
and no greater than 120 seconds.

d\. Visually inspect for damage at 10X magnification

The induced loss shall not exceed 0.3 dB when measured in accordance
with paragraph 3.8.3.2 while load is applied. The induced loss shall
return to within 0.03 dB when the load is removed. The following
exception applies:

> 1\. Paragraph 4.3 4.8 and 5.1.6 of EIA/TIA-455-41 standard - The
> optical power shall be measured in accordance with 4.10.12.3 of this
> specification.

# 3.10.5 Cable bend 

The cable shall withstand a 90 degree bend having a radius of 1.25
centimeter (0.5 inches) with less than 0.3 dB attenuation change. The
cable shall also withstand 5 wraps around a 5 cm (2 inch) mandrel in
accordance with EIA/TIA 455 FOTP 37 procedure III without affecting the
optical power throughput greater than 0.3 dB at room temperature and
--121C.

4.  

5.  []{#__RefHeading___Toc450449124 .anchor}3.10.6 Cable Weight

The weight per unit length of the typical cable shall be in accordance
with appendix A but shall not exceed 2.7 Kilograms per 300 meters. The
weight shall be determined in accordance with FED-STD-228 Method 8311
except the length of the cable sample shall be 2 10 percent meters but
measured to within 0.5 mm. The weight measurement shall be accurate to
0.20 grams.

# 3.11 Physical

# 3.11.1 Fiber and fiber buffer

The following requirements apply to the bare fiber and the buffer
coating and the finished cable.

6.  []{#__RefHeading___Toc450449127 .anchor}3.11.1.1 Fiber core
    (4.10.7.4.3)

    The fiber core shall be Germania doped silica or pure silica and
    have an active diameter of 100 4 microns, an ovality of 5%.

# 3.11.1.2 Fiber Clad (4.10.7.4.3)

The fiber clad shall be doped silica and the outside diameter, ovality
and concentricity to the fiber core shall be in accordance with Appendix
A.

# 3.11.1.3 Fiber coating (4.10.7.4.3)

The fiber coating outside diameter shall be 170 2.0 microns with a wall
thickness tolerance of 1 micron. The fiber core to fiber coating
concentricity shall be 4 microns maximum.

# 3.11.2 Cable (4.10.7)

# 3.11.2.1 Cable buffer (if applicable) (4.10.7)

If the cable buffer exists, the cable buffer inside diameter (if
applicable) and outside diameter shall be as specified in appendix A.

# 3.11.2.2 Cable strength member (4.10.7)

The cable strength member shall be braided teflon coated fiberglass and
the inside and outside dimensions and minimum braid coverage shall be in
accordance with appendix A.

# 

# 3.11.2.3 Cable jacket (4.10.7)

The jacket shall be clean and dry. It shall provide environmental and
mechanical protection to the fiber and be suitable for terminating with
optical termini and connectors and forming into cable harnesses.

# 3.11.2.3.1 Cable jacket outside diameter (4.10.7)

The cable jacket outside diameter shall be 2.10 0.005 mm (0.083 0.002
inches). The inside diameter or jacket wall thickness shall be as
specified in appendix A.

# 3.11.2.3.2 Cable jacket stability

The cable jacket shall be dimensionally stable and shall not shrink more
than 0.4 percent. The length of a two meter sample shall be measured to
the nearest 0.025 millimeters. Subject the sample to five thermal shock
cycles (-105 to -100C to 150C to 155C with 15 minute dwell times at each
temperature) then remove the sample from the chamber. Flex the sample
holding the coiled cable with two hands on opposing sides of the cable
and twisting one hand with respect to the other (the rotational axis is
the line formed by both hands through the center of the coil). Then
subject the sample to an additional five thermal shock samples.
Remeasure the length of the cable jacket to the nearest 0.025
millimeters. Calculate the percent of shrinkage.

7.  []{#__RefHeading___Toc450449136 .anchor}3.11.2.4 Cable jacket color
    (4.10.7)

    The jacket color shall be violet in accordance with MIL-STD-104.

8.  []{#__RefHeading___Toc450449137 .anchor}3.11.2.5 Lengths and splices

    Continuous cable lengths shall be no shorter than 100 meters (328
    feet) unless otherwise specified by the purchase order. The fiber
    shall not be spliced within a given spool of cable. The splice free
    spool shall be verified in accordance with EIA/TIA-455-60 (length)
    and

    EIA/TIA-455-61 (splices).

# 

# 

# 

9.  []{#__RefHeading___Toc450449138 .anchor}4.0 QUALITY ASSURANCE
    PROVISIONS

# 4.1 General

This section establishes the requirements for verifying cable
performance, operability, and physical characteristics by test,
analysis, demonstration or examination. The test program shall assure
that the cable and its documentation meet the requirements established
in 3.0, 5.0, 6.0 and appendix A.

The quality assurance provisions shall consist of the following
classifications of inspections as follows:

A. Controlled Development/Engineering tests

B. Qualification Tests

C. Product Acceptance Tests

D . Destructive Physical Analysis

E. Receiving Inspections

# 4.2 Responsibility for inspection

# 4.2.1 Contractor responsibilities

Unless otherwise specified in the contract or purchase order, the
supplier is responsible for the performance of all inspection
requirements and acceptance tests as specified herein and in Table IX.
The specification custodian reserves the right to perform or witness any
of the inspections set forth in the specification where such inspections
are deemed necessary to assure supplies and services conform to
requirements.

All items must meet all requirements of 3.0 and 5.0 and appendix A. The
inspections set forth in this specification shall become part of the
supplier's overall inspection system or quality program. The absence of
any inspection requirements in the specification shall not relieve the
contractor of the responsibility of assuring that all products or
supplies submitted to the government for acceptance, comply with all
requirements of the contract.

10. 

# 4.2.2 Test equipment and inspection facilities

11. 

Provision for test and measuring equipment and inspection facilities of
sufficient accuracy, quality, and quantity to permit performance of the
required inspections shall be the responsibility of the contractor and
approved by the specification custodian.

Unless otherwise specified, all examinations and tests shall be
performed within the following ranges of ambient temperature, humidity
and pressure.

> a\. Temperature: Room ambient (20o to 30oC)
>
> b\. Relative humidity: Room ambient (10-80 percent)
>
> c\. Barometric pressure: 24 to 31 inches of mercury

# 4.2.3 Test equipment error

Equipment used to measure parameters shall not introduce errors greater
than 10 percent of the tolerance on the parameter, or in the case of a
single limit tolerance, the test equipment error shall be applied to the
specified parameter in a manner to assure the parameter is being met.
Accuracy of less than one-tenth of the tolerance shall require approval
of the specification custodian. Test equipment calibration shall comply
with MIL-STD-45662 or as an alternative, the test equipment calibration
shall be current and certified as defined in the domestics contracts
paragraph of MIL-STD-45662.

# 4.3 Product assurance program

# 4.3.1 Quality and reliability assurance plan

The manufacturer shall prepare a quality and reliability assurance plan.
The plan shall be submitted for review and approval as required by the
purchase contract. Use NHB 5300.4 (3G) as a guideline for the inspection
requirements in addition to the inspection required to insure part
quality.

# 

# 4.3.2. Critical hardware notation

The manufacturer shall establish procedures by which their purchase
orders (PO\'s), purchase requests (PR\'s), request for proposals
(RFP\'s), contracts, and subcontracts, and those of their subcontractors
and suppliers down to the lowest tier, shall include the following
information. Additionally, each sheet of each drawing and the first
sheet of each control document (i.e.; process, specification, procedure,
etc.) shall also provide this information. The information shall be
printed or stamped in bold face type.

[CRITICAL SPACE STATION HARDWARE]{.underline}

FOR USE IN MANNED SPACE FLIGHT.

MATERIALS, MANUFACTURING, AND WORKMANSHIP

OF THE HIGHEST QUALITY STANDARD

[ARE ESSENTIAL TO ASTRONAUT SAFETY.]{.underline}

# 

# 4.3.3 Flowchart - Deleted

# 4.3.4 Failure mode effects analysis - Deleted

# 4.3.5 Discrepancy/failure analysis - Deleted and moved to 3.2.2.1.3

# 

[]{#__RefHeading___Toc450449150 .anchor}4.3.6 Disposition and corrective
action

The manufacturer shall recommend the disposition or corrective action
for all analyzed discrepancies . The disposition or corrective action
shall be accompanied by an engineering evaluation of possible
undesirable secondary effects that may result from incorporation of the
recommendation, and by an evaluation of the recommendation\'s affects on
immediate and long term reliability, usability, and impact on
performance to the requirements of this specification.

Implementation of the recommended disposition or corrective action shall
be at the sole discretion of the specification custodian and shall not
be implemented without written approval from the specification
custodian.

# 4.3.7 On Orbit Discrepancy/Failure Report Activity - Deleted

# 4.3.8 Product History and Database - Deleted

# 4.3.8.1 History - Deleted

# 4.3.8.2 Database - Deleted

# 4.4 Inspection and Test

# 4.4.1 Qualification Inspection -- Deleted and moved to 3.2.2.1.1.2

# 4.5 Inspection Conditions -- Deleted 

# 

[]{#__RefHeading___Toc450449158 .anchor}4.6 Preparation of optical test
samples

All test samples and test support cables shall be tested using a source
in accordance with section 4.10.12.1.1. The termination method of the
connectors/terminations/splices joining the test cable to the test set
shall be proven to be low loss and low variation in their environment
throughout the duration of the tests. Physical contact fiber interfaces
are acceptable and recommended.

# 4.7 Materials inspection

Materials inspection shall consist of certification, supported by
verifying data, that materials used in fabricating the delivered cable
are in accordance with the requirements of 3.3 and appendix A.

# 

# 4.8 Qualification inspection -- Deleted and moved to 3.2.2.1.1.2

[]{#__RefHeading___Toc450449161 .anchor}4.8.1 Qualification -- Deleted
and moved to 3.2.2.1.1.2

# 

[]{#__RefHeading___Toc450449162 .anchor}4.8.1.1 Sample unit length --
Deleted and moved to 3.2.2.1.1.1

# 

4.8.1.2 Inspection routine -- Deleted and moved to 3.2.2.1.1.2

# 

[]{#__RefHeading___Toc450449164 .anchor}4.8.2 Qualification test
procedure -- Deleted and moved to 3.2.2.1.1

# 4.8.3 Qualification test discrepancy -- Deleted and moved to 3.2.2.1.1.3

[Table I. Classification of Tests -]{.underline} [Deleted]{.underline}

# 4.8.4 Qualification test failure -- Deleted and moved to 3.2.2.1.1.4

# 4.8.5 Qualification test report -- Deleted and moved to 3.2.2.1.1.5

# 4.8.6 Disposition of test samples -- Deleted and moved to 3.2.2.1.1.6

# 

[]{#__RefHeading___Toc450449169 .anchor}4.8.7 Qualification by
similarity - Deleted and moved to 3.2.2.1.1.5.1

[]{#__RefHeading___Toc450449170 .anchor}4.8.8 Qualification by analysis
-- Deleted and moved to 3.2.2.1.1.5.2

# 4.9 Product acceptance test

# 4.9.1 Acceptance of product for delivery 

Product Acceptance Tests shall consist of those inspections and tests
listed in Table X and shall be performed in accordance with the approved
acceptance test plan in accordance with section 3.2.2.1.2.

# 4.9.2 Unit of manufacture

The unit of manufacture shall be defined by the purchase order.

# 

# 4.9.3 Sample unit

Sample length shall be one (1) meter for dimensional and mechanical
inspection, as required for numerical aperture (NA), attenuation and
bandwidth tests.

# 

# 4.9.4 Product acceptance test procedures - Deleted

## Table II - Qualification Inspection - Deleted

# 4.9.5 Destructive physical analysis (DPA) - Deleted

# 4.9.6 Receiving inspection - Deleted

# 4.10 Methods of inspection - Deleted

# 4.10.1 Fungus (3.3.2) -- Deleted and moved to 3.9.1

# 4.10.2 Offgassed products test (3.3.2) - Deleted and moved to 3.9.2

# 4.10.3 Odor test -- Deleted and moved to 3.9.3

# 

# 4.10.4 Flammability -- Deleted and moved to 3.9.4

## 

  ------------------------- ---------------------------------------------
                            

                            

                            

                            

                            

                            
  ------------------------- ---------------------------------------------

# 

# 

4.10.5 Outgassed products test -- Deleted and moved to 3.9.5

# 

# 4.10.6 Atomic oxygen effects - Deleted 

# 4.10.7 Visual and mechanical examinations

# 4.10.7.1 General

Visual and mechanical examinations shall be performed to verify that the
design, construction, physical characteristics, dimensions, marking, and
workmanship are in accordance with the requirements in 3.7, 3.9, 3.10
and 3.11. Visual examinations shall be accomplished utilizing 10x
magnification unless otherwise indicated. Visual inspection for the
color of the cable may be accomplished without magnification. The visual
examination is to examine the cable for Macro-type defects rather than
Micro-type defects. Dimensions of the fiber and cable shall be in
accordance with Appendix A Table A-1 and Figure A-1 (Reference EIA
455-13).

# 4.10.7.2. Test equipment

Optical Magnifier, 10X power (maximum) for examination of the product
for damage and defects such as cracks, splits in outer jacket, etc.

Dimensional and other measurement equipment (Vernier calipers, rules,
comparitors, scales, etc.) shall be of sufficient accuracy to verify
dimensional and weight parameters specified in 3.0 and appendix A.

# 

# 4.10.7.3. Test specimen

The test specimen shall be a sample from the reel of the product lot
being submitted for inspection. The length of the specimen for
acceptance and receiving inspection shall be sufficient to perform all
visual and mechanical examinations.

Dimensional measurements shall be made on at least two (2) samples
\[minimum one (1) meter in length\], one from the outside end of the
product and one from the inside end of the reel of product.

# 

# 4.10.7.4 Test procedure

# 4.10.7.4.1 Visual examination

The product shall be visually examined using the specified magnifier
(when required) to assure that it meets the specified requirements as
to:

> a\. Materials used (Material certifications to establish conformance
> to material type requirements) and verification of data submitted
> relative to lot number, etc.
>
> b\. General design and construction
>
> c\. Workmanship
>
> d\. Finish
>
> e\. Identification of product (marking)
>
> f\. Damage

# 

# 4.10.7.4.2 Mechanical examination

The product shall be measured to determine conformance to the dimensions
specified in appendix A. The cable specimens shall be prepared for
dimensional inspection by stripping off outer jacket, trimming strength
member and stripping off buffer as required by the measurement method
used.

The following dimensions are to be verified:

a\. Core diameter

b\. Core ovality

c\. Cladding diameter

d\. Cladding ovality

e\. Core/Cladding offset

f\. Primary buffer diameter

g\. Primary buffer ovality

h\. Secondary buffer diameters (ID & OD)

i\. Outer Jacket OD

Data sheets shall be furnished, to the procuring quality organization,
documenting the actual measurements of the dimensions specified in
Figure A-1 of appendix A for each sample used for dimensional inspection
for qualification and quality conformance (acceptance) inspections.

# 

# 4.10.7.4.3 Fiber and coating examination (3.11.1)

The fiber core, cladding and coating dimensions shall be verified
according to EIA/TIA RS 455 FOTP 45 with the following exceptions:

Para. 2.2 The microscope shall be equipped with video processing
equipment allowing measurements to 2 microns at 400 X magnification.

> Para. 4.3 The fiber coating shall not be removed from the fiber.
>
> Para. 4.4 The fiber and coating shall be terminated in a connector and
> polished to a flat surface which is within 2 degrees of perpendicular
> to the fiber axis.
>
> Para. 4.6 The fiber rotation shall be aligned so that the largest
> measured diameter is horizontal. Use the video measurement system to
> measure the width and height of fiber in this orientation. Rotate the
> fiber to align smallest diameter horizontally and measure the width
> and height using the video measurement system.
>
> Para. 4.7 The video system will impose a measurement image on the
> monitor and on the photographic image.

Calculate the core, cladding and coating ovality and the core to
cladding offset.

# 4.10.7.5 Cable Weight -- Deleted and moved to 3.10.6

[]{#__RefHeading___Toc450449194 .anchor}4.10.7.6 Durability Of Color
Markings - Deleted

# 4.10.7.6.1 Durability Testing Apparatus - Deleted

# 4.10.7.6.2 Durability Testing Procedure - Deleted

# 4.10.7.7 Fiber Buffer Strippability (3.10.1.2)

The fiber from a 30 centimeter length of cable shall be removed and one
end cleaned using a low non-volatile residue wipe and alcohol. The fiber
shall be installed into a connector/ terminus/ferrule measuring 172.7
microns to 175 microns. A drop of Epotec 353ND epoxy shall be placed on
the tip of the ferrule. The fiber shall be moved a total of 2.5
millimeters in and out of the connector. The excess epoxy shall be
removed and the remaining epoxy shall be cured at 100C for 30 minutes.
The excess fiber shall be cleaved and the remaining materials shall be
ground off the tip using 30 micron lapping film. The terminus shall be
secured in a tensile test set and the fiber pulled until failure.

# 

# 4.10.8 Fiber proof test - Deleted and moved to 3.10.2

# 4.10.9 Numerical aperture -- Deleted and moved to 3.8.1

# 4.10.10 Optical bandwidth -- Deleted and moved to 3.8.2

# 

# 4.10.11 Attenuation rate -- Deleted and moved to 3.8.3

# 4.10.12 Attenuation measurements

The following are the procedures required to make optical loss
measurements for the International Space Station Program. There are
three procedures outlined below. Although the EIA/TIA Specifications are
referenced, the following procedures take precedence in the case of
conflict.

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 4.10.12.1 Optical Test Set 

Below are the functional requirements of the optical test equipment.

# 4.10.12.1.1 Light Source

The optical source shall be an optically and modally stabilized LED
having a center wave length between 1270 nanometers and 1330 nanometers.
The far field 1/2 sine output of the source shall conform to Table V.
The source bandwidth shall be within 60 nanometers. The LED shall not be
modulated.

## Table V - Far Field Output

  ---------------------------------------- ------------------------------
  NA                                       Power (Percent)

  0.093 to 0.118                           80

  0.139 to 0.167                           60

  0.182 to 0.208                           40

  0.224 to 0.250                           20

  0.267 to 0.290                           5%
  ---------------------------------------- ------------------------------

# 

# 4.10.12.1.2 Source monitoring equipment (SME)

The source output power shall be monitored and recorded without
disconnecting the test specimen. The launch conditions into the
calibration cable set must meet the requirements of 4.10.12.1.2. These
measurements are used to allow corrections to compensate for source
output variations.

Equipment that does not have continuous source monitoring capability,
shall include a Certificate of Compliance that the optical source
remains optically stable to 0.04 dB and modally stable within 1 percent
of the measured optical power at each specified 1/2 sine for the
duration of the testing sequence. The validation of the source shall be
obtained before and after the testing and shall be submitted with the
test data.

# 4.10.12.1.3 Detection equipment

The detector and associated electronics shall be capable of measuring
all energy exiting from the fiber and have a linear active area at least
10 times larger than the fiber core. They shall be linear at the
wavelengths used, and over the expected range of power. The resolution
of the detection equipment shall be as follows:

## Table VI -- Equipment Resolution Requirements

  -------------------------------------------------- --------------------
  Interconnection Device Loss                        Resolution

  \>.5 dB                                            .1 dB

  \<.5 dB                                            .05 dB
  -------------------------------------------------- --------------------

The detector shall be linear within 3 percent over the duration of the
test and over a 23 5 oC temperature range.

# 4.10.12.1.4 Reference cable set

The reference cable 6 0.6 meters of NFOC-2FFF-1GRP-1 fiber optic cable
and terminated with ST connectors polished to attain a physical contact
interface. The substitution loss of the reference cable shall not exceed
0.40 dB and the fiber core shall be free from surface defects when
viewed at 100 power magnification.

Connect the reference cable to the optical source and detector. Clean
and mate each end connector until three consecutive OPT measurements
agree to 0.03 dB. Do not disconnect the Reference Cable from the source
until the SRD cable build is completed. Cut the cable 2.0 0.2 meters
from the source side of the reference cable. Terminate each cut end of
the reference cable with a ST connector polished to achieve physical
contact interface. Each termination shall measure no more than 0.40 dB.
After this pair of termini have been installed, cut the cable 2.0 0.2
meters from the detector end of the reference cable and install a pair
of ST connectors as before. Label the segment toward the source as "S",
the center as "R" and the detector side as "D". This cable set is called
the reference cable set, and is comprised of the S, R, and D cables.

# 4.10.12.1.5 MTC cable 

An MTC cable shall 6.0 0.6 meters of SSQ 21654 fiber optic cable. It
shall be terminated with ST connectors and polished to achieve a
physical contact interface. The substitution loss shall not exceed 0.4
dB and the cable shall be free from surface defects when viewed at 100
power magnification. This cable shall be protected and stored in a safe
and environmentally stable area when not used.

When using a RIFOCS test set, the MTC cable can be RIFOCS' P/N
333-110-03.

# 

# 4.10.12.2 Optical test set calibration

The test set calibration consists of two processes; one for the source
and detector and one for the S and D cables. The measurement procedure
outlined below is very rigorous and is required to attain 0.07 dB
measurement accuracy.

# 4.10.12.2.1 Meter and source calibration using the MTC cable

Clean each termini optical surface on the appropriate MTC cable using a
clean lint free wipe wetted with N-Propyl alcohol followed by a clean
lint free wipe (dry). Using clean, dry compressed air, blow the
connector receptacle on the source and detector. Install the MTC Cable
into the source and the detector. Disconnect the source side of the MTC
cable from the source and reclean the source receptacle and the mating
optical terminus. Repeat the cleaning remating steps until three
consecutive OPT measurements agree to within 0.03 dB. Repeat this
process on the detector side of the MTC Cable interfaces. Record the
final OPT into the equipment log as P~MTC(date)~. The OPT shall not
exceed 0.1 dB change from the other logged readings.

[]{#__RefHeading___Toc450449211 .anchor}4.10.12.2.2 SRD cable set
calibration

Clean each connector optical surface on the appropriate S cable and D
cable using a clean lint free wipe wetted with N-Propyl alcohol followed
by a clean lint free wipe (dry). Using clean, dry compressed air, blow
the connector receptacle on the source and detector. Install the S and D
into the source and the detector and mate the S and D cables. Disconnect
the S from the source and reclean the source receptacle and the mating
optical terminus. Repeat the cleaning remating steps until three
consecutive OPT measurements agree to within 0.03 dB. Repeat this
process on the D to detector receptacle and then on the S to D
interfaces. Record the final OPT as P~SD~ and the meter monitor power as
P~MSD~ (if SEM is used).

Disconnect the S to D interface and connect the R cable to the S and D
cables. Clean and measure each connector until three consecutive OPT
measurements agree to 0.03 dB. Record the final OPT measurement as
P~SRD~. Subtract the P~SRD~ from the P~SD~ OPT measurements and record
it in the equipment log. Compare the R substitution loss to the previous
records. If the R substitution loss has greater than 0.1 dB change,
replace the SRD cable sets.

# 

# 4.10.12.3 Induced loss (3.8.3.2)

The change in the attenuation of the fiber induced by exposure to
environmental or physical test conditions shall be measured in
accordance with EIA/TIA RS 455 FOTP 20 with the following parameters:

> a\. The source and detector shall comply with 4.10.12.1.
>
> b\. An optical power divider (per paragraph 2.2 of FOTP 20) shall not
> be used.
>
> c\. The test sample shall be terminated with ST connectors on each
> end.
>
> d\. A reference sample shall not be used and the reference power shall
> be the initial optical power through the test specimen.
>
> e\. The optical test setup shall not be disconnected between the time
> the baseline value is established and measurement of power throughput
> after completion of the primary test.

# 4.10.12.3.1 Optical measurements

The following Optical Power Throughput measurements shall be recorded:

P~MSDD~ = Meter Optical Power Throughput (OPT), SD - Cable, Induced Loss

P~MDB~ = Meter OPT, Before, Induced Loss

P~MDX~ = Meter OPT, After or Subsequent, Induced Loss

P~SSD~ = OPT, SD - Cable, Induced Loss

P~DB~ = OPT, Before, Induced Loss

P~DX~ = OPT, After or Subsequent, Induced Loss

# 4.10.12.3.2 Test set-up

The test equipment shall be in accordance with 4.10.12.1 and calibrated
in accordance with 4.10.12.2. The test set shall remain connected to the
test sample during the environmental exposure.

# 

# 4.10.12.3.3 Test procedure

The test setup shall not be separated from source once testing has
begun. Induced attenuation measurements shall be made immediately
before, during and/or after tests as specified in the applicable
mechanical or environmental test method. Replace the R Cable with the
test sample. Clean the test sample to S Cable interconnection and record
the OPT. Reclean the interconnection until three consecutive OPT
measurements agree to within 0.03 dB. Record the final OPT measurement
as P~DB~ and the meter monitor power as P~MDX~. Run the environmental
test. Measure and record the test sample OPT at the specified intervals
as P~DX~ where x indicates the interval . After the environmental test
is complete, measure the final OPT and record it as P~DF~ and the meter
monitor power as P~MDF~.

# 4.10.12.3.4 Induced loss calculations

Induced loss shall be calculated as follows when the power is measured
in watts

L~D~ (dB) = 10
log$\left( \frac{P\text{DB}}{P\text{DX}} \cdot \frac{P\text{MDX}}{P\text{MDB}} \right)$

or when the power is measured in dB

L~D~ (dB) = (P~DB~-P~DX~) - (P~MDB~ - P~MDX~)

# 4.10.12.4 Substitution loss (3.8.3.1)

(Reference EIA/TIA 455 FOTP-171, however these requirements supersede
FOTP-171 if conflicting.

# 4.10.12.4.1 Optical measurements

The following Optical Power Throughput measurements shall be recorded:

P~MSD~ = Meter Optical Power Throughput (OPT), SD - Cable, Substitution
Loss

P~MSI~ = Meter OPT, Initial, Substitution Loss

P~MSF~ = Meter OPT, Final, Substitution Loss

P~SD~ = OPT, SD - Cable, Substitution Loss

P~SI~ = OPT, Initial, Substitution Loss

P~SF~ = OPT, Final, Substitution Loss

4.10.12.4.3 []{#__RefHeading___Toc450449219 .anchor}Test set-up

The test equipment shall be in accordance with 4.10.12.1 and calibrated
in accordance with paragraph 4.10.12.2. The test set may be disconnected
from the test sample during the environmental exposure.

# 

# 4.10.12.4.3 Test procedure

Replace the R Cable with the test sample. Clean the test sample to S
Cable interconnection and record the OPT. Reclean the interconnection
until three consecutive OPT measurement agree to within 0.03 dB. Repeat
this process on the test sample to D Cable interconnection to test
sample. Record the final OPT as P~s~ and the meter monitor power as
P~MS~.

# 4.10.12.4.4 Substitution loss calculations

# 

Induced loss shall be calculated as follows when the power is measured
in watts

L~S~ (dB) = 10
log$\left( \frac{P\text{SD}}{PS} \cdot \frac{P\text{MS}}{P\text{MSD}} \right)$

or when the power is measured in dB

Substitution Loss (dB) = (P~S~-P~SD~) - (P~MS~ - P~MSD~)

# 4.10.13 Radiation resistance - Deleted and moved to 3.9.6

# 4.10.14 Thermal shock -- Deleted and moved to 3.9.7

# 4.10.14.1 Test equipment - Deleted

# 4.10.14.2 Test sample - Deleted

# 4.10.14.3 Test setup - Deleted

# 4.10.14.4 Test procedure - Deleted

# 

# 4.10.14.5 Test documentation - Deleted 

# 

[]{#__RefHeading___Toc450449229 .anchor}4.10.15 Survival
temperature/vacuum -- Deleted and moved to 3.9.8

# 4.10.16 Crush (3.10.4) - Deleted and moved to 3.10.4

# 4.10.16.1 Test equipment - Deleted 

# 4.10.16.2 Test sample - Deleted 

# 4.10.16.3 Test procedure - Deleted 

# 4.10.16.4 Test documentation - Deleted 

# 4.10.17 Cable bend- Deleted and moved to 3.10.5

# 4.10.17.1 Test equipment - Deleted

# 4.10.17.2 Test specimen -Deleted

# 4.10.17.3 Test procedure -- Deleted

# 4.10.17.4 Test documentation - Deleted

# 4.10.18 Jacket shrinkage -- Deleted and moved to 3.11.2.3.2

# 4.10.18.1 Test equipment -- Deleted

[]{#__RefHeading___Toc450449242 .anchor}4.10.18.2 Test sample - Deleted

[]{#__RefHeading___Toc450449243 .anchor}4.10.18.3 Test setup - Deleted

[]{#__RefHeading___Toc450449244 .anchor}4.10.18.4 Test procedure -
Deleted

# 

[]{#__RefHeading___Toc450449245 .anchor}4.10.18.5 Test documentation -
Deleted

[]{#__RefHeading___Toc450449246 .anchor}4.10.19 Vacuum - Deleted

# 4.10.19.1 Test equipment - Deleted 

# 4.10.19.2 Test sample - Deleted 

# 

# 4.10.19.3 Test procedure - Deleted 

### 

### Figure 1 -- Optical Test Set-Up for Vacuum Stability - Deleted

# 4.10.19.4 Test documentation - Deleted

#  

# 4.10.20 Cycling flexing (3.10.3)

Test in accordance with DOD-STD-1678 METHOD 2010, procedure 2 with the
following specifications:

> a\. The test mandrel shall be 12 mm (0.5 inches).

b.  The test mass shall be 2.25 Kilograms (5 lbs.)

c.  

d.  c\. The induced attenuation shall not exceed 0.5dB during the test
    and shall return to within 0.1 dB of the initial value after test
    exposure.

> d\. Sample length shall be five meters.

The following exceptions shall take precedence over DOD-STD-1678
procedure 2:

> Step 2 The specimen shall be mounted in the test fixture and the
> optical power measured in accordance with 4.10.12.3.
>
> Step 4 The test shall be conducted starting at room temperature, then
> ramp to a temperature of 120C when 900 to 1100 cycles are completed,
> and then ramp down to room temperature when 1900 to 2000 cycles are
> completed.
>
> Step 5 The optical power shall be measured at the completion of the
> 2000 cycles while the specimen is mounted in the fixture in accordance
> with 4.10.12.3.
>
> Para 5.4 Optical power shall be measured in accordance with 4.10.12.3.
> The number of transmitting fibers will not be counted.
>
> Para 5.6 The optical loss shall be calculated in accordance with
> 4.10.12.3.4.
>
> Para 5.8 Delete
>
> Para 5.9 Delete.
>
> Para 5.10 Visual inspection of the outer jacket shall be made under
> ten-power magnification.

# 5.0 PREPARATION FOR DELIVERY

# 5.1 Cleanliness

Extreme care shall be exercised during all packaging, packing, and
marking procedures such that the cable cleanliness integrity and the
packaging requirements of MSFC-SPEC-164 are not compromised.

# 5.2 Packaging requirements

Unless otherwise specified in the contract, the requirements for
packaging of fiber optic cable shall be in accordance with MIL-C-12000.

# 5.3 Reels and spools

The cable on each reel or spool shall have both ends readily available
for testing without unwinding. A minimum of five meters of cable shall
be exposed on the inside end of the cable to facilitate attenuation
measurements and removal of the required mechanical and visual samples.
The inner end shall be available at the outer surface of the reeled
cable. Cable shall be spooled in such a way to minimize induced fiber
losses and special care shall be exercised to prevent excess stress on
the cable where it exits the reel on the inside end of spool. Both ends
of the cable shall be secured to a flange. The reel or spool shall have
an inner diameter greater than six (6) times the minimum bend radius of
the cable.

# 5.4 Product and package marking

# 5.4.1 Marking of reels and spools

In addition to the marking specified in MIL-STD-129, each reel or spool
shall be marked with the length of individual continuous lengths cable
wound thereon. A warning label shall be applied to each reel to advise
personnel to exercise caution in the handling of optical fibers. This
label shall alert personnel to avoid skin puncture and contact with the
eyes. It shall warn against staring at the output end of the fiber optic
cables without eye protection (infrared viewer or equivalent) during
testing when these cables are powered by high radiance light emitting
diodes or lasers.

The identification marking label shall contain the following
information:

> CABLE, FIBER OPTICS

SSQ Part number\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Length \_\_\_\_\_ meters

Manufacture lot number \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Date of manufacture \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

Manufacturer's name \_\_\_\_\_\_\_\_\_\_\_\_\_

# 5.4.2 Space Station critical hardware

Each reel and spool shall be identified with a removable tag. The tag
shall be attached and removed in a manner such that the reel or spool
will not be damaged or contaminated or otherwise rendered unsuitable for
use. The tags shall be fluorescent international orange with black
letters on both sides and shall read as follows.

**CRITICAL SPACE STATION HARDWARE**

**DO NOT REMOVE UNTIL INSTALLATION**

The tag size shall be commensurate with the unit size and the lettering
size shall be legible to a person with normal sight at a distance of 3
feet.

# 5.4.3 Packaging labels

Each unit, intermediate, and final package/container shall be affixed
with a self adhering label. The labels shall be fluorescent
international orange with black letters and shall read as follows.

**[CRITICAL SPACE STATION HARDWARE]{.underline}**

**FOR USE IN MANNED SPACE FLIGHT. MATERIALS, MANUFACTURING, AND
WORKMANSHIP OF THE HIGHEST QUALITY STANDARDS**

**[ARE ESSENTIAL TO ASTRONAUT SAFETY.]{.underline}**

The label size shall be commensurate with the package size and the
lettering size shall be legible to a person with normal eyesight at a
distance 3 feet and shall be logically applied to both sides of bags,
top and bottom or top and two sides, depending on box geometry, of small
boxes, and the top and at least 2 sides of the final container.

# 

# 5.5 Unit protection and wrapping

Unless otherwise specified, each deliverable unit shall, as a minimum,
be wrapped in an electrostatic free transportable polyethylene bag
conforming to MIL-B-81705, Type II. Bags shall be heat sealed or sealed
with a reusable sealing device manufactured from material conforming to
MS90376, material B. The sealing method shall eliminate spillage and
exclude particulate contaminates. Staples, tape or other static
generating materials, shall not be used. The same information required
by 5.4.1 for marking of reels and spools plus the date of packaging
shall be permanently and legibly marked (1) on a low sulfur content card
in and readable through the bag, (2) on the bag, or (3) a combination of
marking on a card and the bag.

# 5.6 Unit packaging

Each bagged reel or spool unit shall be packaged in individual
containers (paper product boxes are acceptable) to insure damage free
delivery and storage. The information required by 5.4.1 and the date of
packaging shall be permanently and legibly marked on the container.

# 5.7 Packing containers

Each packaged unit (Reference paragraph 5.2) shall be packed in
containers such that damage free delivery is assured. Containers shall
comply with the Consolidated Freight Classification rules or other
carrier regulations applicable to the mode of transportation. Each
packed container shall be prominently marked with the same information
required by 5.4.1 plus the quantity of reels or spools in the package
and the date of packaging.

# 6.0 NOTES

# 6.1 Part numbers

The specification custodian part number consists of the part numbers
shown in 6.2 and the appendix A.

## Table VIII -- Part Number Identification Table

+------+------+-------+------+---------------------------------------+
| [N   | [-2  | [-1G  | \    |                                       |
| FOC] | FFF] | RP]{. | -[1] |                                       |
| {.un | {.un | under | {.un |                                       |
| derl | derl | line} | derl |                                       |
| ine} | ine} |       | ine} |                                       |
+------+------+-------+------+---------------------------------------+
|      |      |       |      | **Number of fibers**                  |
+------+------+-------+------+---------------------------------------+
|      |      |       |      | **Fiber Code -** 1GRP = 100/140,      |
|      |      |       |      | Graded Index, Radiation Resistant,    |
|      |      |       |      | Precision Fiber Buffer                |
+------+------+-------+------+---------------------------------------+
|      |      |       |      | **Cable Code -** 2FFF= 2.0 mm OD, FEP |
|      |      |       |      | Teflon Jacket, Fiberglass with Teflon |
|      |      |       |      | Coating, FEP Secondary Buffer         |
|      |      |       |      |                                       |
|      |      |       |      | QUALIFIED FOR FLIGHT                  |
+------+------+-------+------+---------------------------------------+
|      |      |       |      | **Cable Type** - NFOC = NASA Fiber    |
|      |      |       |      | Optic Cable                           |
+------+------+-------+------+---------------------------------------+

# 6.2 Approved source(s) of supply

Only the item described by this drawing when procured from the supplier
or an approved distributor is approved for use. A substitute item shall
not be used without the specification custodian's approval.
Identification of approved manufacturer is not to be construed as a
guarantee of present or continued availability as a source of supply.

# 

Approve S

+---------------------+----------------------------------+-------------+
| Part Number         | Approved Source of Supply        | CAGE CODE   |
+---------------------+----------------------------------+-------------+
| NFOC-2FFF-1GRP-1    | Brand-Rex Company                | 71124       |
|                     |                                  |             |
|                     | An Affiliate of Cablec           |             |
|                     | Corporation                      |             |
|                     |                                  |             |
|                     | 1600 West Main Street            |             |
|                     |                                  |             |
|                     | Willimantic, CA 06226-1128       |             |
+---------------------+----------------------------------+-------------+
| NFOC-2FFF-1GRP-1    | Sea Wire and Cable               | 65959       |
|                     |                                  |             |
|                     | P.O. Box 647                     |             |
|                     |                                  |             |
|                     | 110 Celtic Circle                |             |
|                     |                                  |             |
|                     | Madison Alabama 35758            |             |
+---------------------+----------------------------------+-------------+

[]{#__RefHeading___Toc450449266 .anchor}7.0 REQUIREMENTS VERIFICATION
MATRIX

## Table IX -- Requirements Verification Matrix 

  --------------- ---------------------------- ----- --------------- --- --- ---------------
  VERIFICATION                                       VERIFICATION            
  METHOD:                                            PHASES:                 

  TBS = TO BE                                                                
  SUBMITTED BY                                                               
  SUPPLIER                                                                   

  A = ANALYSIS                                       D = DEVELOPMENT         

  S = SIMILARITY                                     Q =                     
                                                     QUALIFICATION           

  I = INSPECTION                                     A = ACCEPTANCE          

  D =                                                                        
  DEMONSTRATION                                                              

  T = OPERATIONAL                                                            
  TEST                                                                       

  N/A = NOT                                                                  
  APPLICABLE                                                                 

  TBS = TO BE                                                                
  SUPPLIED BY                                                                
  CABLE SUPPLIER                                                             

  SECTION 3       PARAGRAPH                          D               Q   A   SECTION 4

  PARAGRAPH       TITLE                                                      PARAGRAPH

  3.3.3           FUNGUS - DELETED             N/A                           

  3.3.3           OFFGASSING/TOXICITY -        N/A                           
                  DELETED                                                    

  3.3.3.1         OUTGASSING/TOXICITY -        N/A                           
                  DELETED                                                    

  3.3.3.2         ODOR - DELETED               N/A                           

  3.3.3.3         FLAMMABILITY - DELETED       N/A                           

  3.3.3.4         OUTGASSING (VACUUM           N/A                           
                  STABILITY) - DELETED                                       

  3.3.4           ATOMIC OXYGEN - DELETED      N/A                           

  3.4             DESIGN AND CONSTRUCTION -    N/A                           
                  DELETED                                                    

  3.4.1           OPTICAL FIBER -- DELETED     N/A                           

  3.4.1.1         OPTICAL FIBER BUFFER         N/A                           
                  --DELETED                                                  

  3.4.2           CABLE -- DELETED             N/A                           

  3.4.2.1         STRENGTH MEMBER -- DELETED   N/A                           

  3.4.2.2         CABLE JACKET -- DELETED      N/A                           

  3.4.2.3         COLOR -- DELETED             N/A                           

  3.4.2.4         LENGTHS AND SLICES -- ELETED N/A                           

  3.4.2.5         CABLE WEIGHT -- DELETED      N/A                           

  3.5             PHYSICAL -- DELETED          N/A                           

  3.5.1           FIBER -- DELETED             N/A                           

  3.5.1.1         NUMBERICAL APERTURE          N/A                           

  3.5.1.2         OPTICAL FIBER BANDWIDTH --   N/A                           
                  DELETED                                                    

  3.5.2           CABLE                        N/A                           
  --------------- ---------------------------- ----- --------------- --- --- ---------------

**Table IX -- Requirements Verification Matrix (continued)**

  ------------ ---------------------------- ----- --- --- --- --------------------
  3.5.2.1      ATTENUATION RATE -- DELETED  N/A               

  3.5.2.2      ATTENUATION MEASUREMENTS --  N/A               
               DELETED                                        

  3.5.2.2.1    INDUCED ATTENUATION --       N/A               
               DELETED                                        

  3.5.2.2.2    SUBSTITUTION LOSS -- DELETED N/A               

  3.5.3        RADIATION RESISTANCE --      N/A               
               DELETED                                        

  3.5.4        THERMAL SHOCK -- DELETED     N/A               

  3.5.5        SURVIVAL TEMPERATURE --      N/A               
               DELETED                                        

  3.5.6        CRUSH                        N/A               

  3.5.7        CABLE BEND                   N/A               

  3.5.8        JACKET SHRINKAGE             N/A               

  3.5.9        VACUUM                       N/A               

  3.6          IDENTIFICATION MARKING       I     X   X   X   4.10.7

  3.6.1        DURABILITY OF IDENTIFICATION N/A               
               -- DELETED                                     

  3.7          WORKMANSHIP                  I     X   X   X   4.10.7

  3.8          OPTICAL                      N/A               

  3.8.1        NUMERICAL APERTURE           TBS   X   X   X   EIA/TIA 455 FOTP 47

  3.8.2        OPTICAL FIBER BANDWIDTH      TBS   X   X   X   EIA/TIA 455 FOTP 30

  3.8.3        ATTENUATION                  TBS   X   X   X   4.10.12

  3.8.3.1      SUBSTITUTION LOSS            T     X   X       4.10.12.4

  3.8.3.2      INDUCED LOSS                 T     X   X       4.10.12.3

  3.9          ENVIRONMENTAL                                  

  3.9.1        FUNGUS                       T     X   X       MIL-STD-810 Method
                                                              508

  3.9.2        TOXICITY                     T     X   X       MIL-STD-810 METHOD
                                                              508

  3.9.3        ODOR                         T     X   X       NHB 8060.1B

  3.9.4        FLAMMABILITY                 T     X   X       MSFC-HDBK-527

  3.9.5        OUTGASSED PRODUCTS/ VACUUM   T     X   X       JSC-SPEC-SP-R-0022
               STABILITY                                      

  3.9.6        RADIATION RESISTANCE                   X       

  3.9.7        THEMAL SHOCK                 D     X   X       MIL-STD-202 Method
                                                              107

  3.9.8        SURVIVAL TEMPERATURE         D     X   X       
  ------------ ---------------------------- ----- --- --- --- --------------------

**Table IX -- Requirements Verification Matrix (continued)**

  ------------ ---------------------------- ----- --- --- --- ---------------
  3.10         MECHANICAL                                     

  3.10.1       STRIPPABILITY                      X   X   X   VERIFIED DURING
                                                              USE

  3.10.1.1     CABLE BUFFER STRIPPABIILITY  D     X   X       VERIFIED DURING
                                                              USE

  3.10.1.2     FIBER BUFFER STRIPPIBILITY   D     X   X       

  3.10.1.3     CABLE JACKET STRIPPABILITY   D     X   X       VERIFIED DURING
                                                              USE

  3.10.2       FIBER PROOF TEST             TBS   X   X   X   

  3.10.3       CYCLIC FLEXING               D     X   X       4.10.20

  3.10.4       CRUSH                        D     X   X       EIA/TIA-455
                                                              FOTP 41

  3.10.5       CABLE BEND                   D     X   X       

  3.10.6       CABLE WEIGHT                 TBS   X   X   X   

  3.11         PHYSICAL                                       

  3.11.1       FIBER AND FIBER BUFFER                         4.10.7

  3.11.1.1     FIBER CORE                   TBS   X   X   X   4.10.7.4.3

  3.11.1.2     FIBER CLAD                   TBS   X   X   X   4.10.7.4.3

  3.11.1.3     FIBER COATING DIAMTER        TBS   X   X   X   4.10.7.4.3

  3.11.2       CABLE                                          

  3.11.2.1     CABLE BUFFER                 TBS   X   X   X   4.10.7

  3.11.2.2     CABLE STRENGTH MEMBER        TBS   X   X   X   4.10.7

  3.11.2.3     CABLE JACKET                 TBS   X   X   X   4.10.7

  3.11.2.3.1   CABLE JACKET OUTSIDE         TBS   X   X   X   4.10.7
               DIAMETER                                       

  3.11.2.3.2   CABLE JACKET STABILITY       D     X   X   X   

  3.11.2.4     CABLE JACKET COLOR           D     X       X   MIL-STD-104

  3.11.2.5     LENGTHS AND SPLICES          TBS           X   EIA/TIA-455
                                                              FOTP 60 & 61

                                                              
  ------------ ---------------------------- ----- --- --- --- ---------------

# APPENDIX A ITEM DETAIL SPECIFICATION

**SPECIFICATION CUSTODIAN:**

**THE BOEING COMPANY**

**SPACE AND COMMUNICATIONS DIVISION**

**2100 SPACE PARK DRIVE**

**HOUSTON TEXAS, 77058**

**CAGE CODE: 2B945**

+-----------------------------------------------------------------------+
| **INTERNATIONAL SPACE STATION PROGRAM OFFICE**                        |
|                                                                       |
| **SSQ 21654 Revision C**                                              |
|                                                                       |
| **May 03, 1999**                                                      |
|                                                                       |
| **National Aeronautics and Space Administration**                     |
|                                                                       |
| **International Space Station Program**                               |
|                                                                       |
| **Johnson Space Center, Houston, Texas**                              |
|                                                                       |
| ![](media/image2.png){width="1.7097222222222221in"                    |
| height="1.3770833333333334in"}                                        |
+-----------------------------------------------------------------------+

#### 

# 

#### 10.0 SCOPE

This appendix defines the detail dimensional, material and performance
requirements for a single element, multimode, fiber optic cable for use
in near earth orbit and internal and external installations.

#### 20.0 Applicable documents

None.

#### 30.0 Requirements

#### 30.1 Fiber characteristics

Attenuation (Cabled) - 4 dB/km @ 1290 + 10 nm Maximum

Numerical Aperture - 0.30 + .02 @ 1290 + 10 nm

Bandwidth - 200 MHz-km @ 1290 + 10 nm Minimum

Proof Strength - 200,000 psi Minimum

Core Ovality - 5%

Cladding Ovality - 4 %

Core/Cladding Offset - 98% Minimum

Cable Weight - 5.5 lbs/1000 ft. Maximum

Color - Violet in accordance with MIL-STD-104

Temperature: Operating -120oC to +150oC

Storage -131oC to +150oC

#### 30.2 Physical dimensions and materials 

The physical dimensions and materials for the cable are defined in Table
A-I and

Figure A-I. Dimensions are SI metric.

## Table A-1, FIBER/CABLE DIMENSIONS

+-----+---------------+----------------+---------------+--------------+
| F   | Item          | Dimension      | Material      | Construction |
| ind |               |                |               |              |
+-----+---------------+----------------+---------------+--------------+
| A   | Core          | 100[+]{        | Doped Silica  | Drawn        |
|     |               | .underline}2um |               |              |
| B   | Cladding      |                |               |              |
|     |               | 140[+]{        |               |              |
|     |               | .underline}2um |               |              |
+-----+---------------+----------------+---------------+--------------+
| C   | Hermetic      | 0.025-0.05 um  | Carbon Based  | Chemical     |
|     | Coating       |                | Hermetic      | Vapor        |
|     |               | Thickness      | Sealer        | Deposition   |
+-----+---------------+----------------+---------------+--------------+
| D   | Fiber Coating | 170[+]{        | Polyimide     | Coat with    |
|     | Buffer        | .underline}2um |               | Heat Cure    |
+-----+---------------+----------------+---------------+--------------+
| E   | Cable Buffer  | 380-760[+]{.   | FEP-Teflon    | Extruded     |
|     |               | underline}25um |               |              |
+-----+---------------+----------------+---------------+--------------+
| F   | Strength      | 1.6mm OD       | Teflon        | Braided      |
|     | Member        |                |               |              |
|     |               |                | Impregnated   |              |
|     |               |                |               |              |
|     |               |                | Fiberglas     |              |
+-----+---------------+----------------+---------------+--------------+
| G   | Cable Jacket  | 2.10[+]{.un    | FEP-          | Extruded     |
|     |               | derline}0.05mm |               |              |
|     |               |                | Teflon        |              |
|     |               | .25mm Thick    |               |              |
+-----+---------------+----------------+---------------+--------------+

#### 40.0 Quality assurance provisions

The requirements of SSQ 21654 4.0 apply.

#### 50.0 Packaging

Packaging of product produced to the requirements of this appendix shall
be packaged in accordance with 5.0 of this specification.

# 

# 

#### 60.0 Notes

The optical cable contains about 0.2% excess fiber when it is removed
from the shipping reel. The excess fiber shall be removed prior to
terminating the ends as follow:

**Short Lengths (Less than 2 meters)**

1\. Cut the cable to the required length. Add the length required to
terminate the ends.

2\. After removing the cable jacket, strength member, and buffer tube,
lay the length of cable so that it is straight and on a flat table.

3\. Move the fiber in and out of the cable and verify that the fiber is
free to move through the cable.

5.  Clean the fiber and replace the fiber in its original position with
    respect to the

optical cable jacket.

###  G F E D A, B and C

### 

### 

### Figure A-1. Cable Configuration

**Long Lengths (Greater than 2 meters)**

1\. Cut the cable 2 inches longer than required. Add the length required
to terminate the ends.

2\. Stretch the cable out on a table so that it lays straight and flat.

3\. Remove one inch of cable jacket, strength member and cable buffer
tube from each end.

4\. Grab the fiber from one end and lift the fiber and approximately
half the cable off the table.

5\. If the fiber moves at the other end, set the cable down, If the
fiber does not move, repeat

the step above on the other cable end.

6\. Cut off the excess fiber at each cable end.

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