Advances in Robust, Easy to Install
Fiber Cabling Systems
to Support EtherNet/IP
Robert Reid & Dan McGrath, Panduit Corp.

Technical Trackwww.odva.org

Fiber Cabling Systems forEtherNet/IP
Outline Agenda
Historical Perspective• Fiber Media & Connectivity



SFF Electronics & MDI (Media Device Interface)• LC FOCIS-10 Connectors• SFF PMD Capabilities

New Fiber Media Variant• What is GI-PCF? Cable styles?
• Media Value Proposition• New GI-PCF connector system

Reference Architectures/Use Cases
Solution & Channel Validation of GI-PCF

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
All rights reserved.

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Historical Perspective
Fiber Use Issues

For many fiber EtherNet/IP applications,the use of enterprise cabling systems
present issues of robustness, anddeployment ease by factory personnel
 Challenges tend to inhibit fiber use andincrease Total Cost of Ownership (TCO) At the control level, current need simple,
robust fiber solutions that support 100Mb/s
 Need for 1Gb/s uplinks with fiber onswitches for resiliency/performanceTechnical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF (Small Form Factor)
Electronics & MDI

Historically, in industrial automation,
several lower density fiber interfaces havebeen deployed such as Straight Tip (ST),Sub Miniature Assembly (SMA), Subscriber
Connector (SC) and ‘proprietary’ non-MSA(Multi-Source Agreement) interfaces suchas TosLink or Versatile Link
 Industrial Automation equipment vendors
are now offering SFP modular transceiverson their switch lines for Gb/s Ethernet
Uplinks and switch ports
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI
MDI – Media Device Interface(LC Duplex Receptacle)

1GBASE-SX SFPModular TransceiverTechnical Track© 2012 ODVA, Inc.

FOCIS-10 LC Connector

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI
Optical receptacle on the SFP for Ethernet
is defined as an LC interface. Most majortransceiver vendors, including early
proponents of “MT-RJ-only” transceivers,
now sell SFPs with the LC interface only The LC is the clear market leader in SFFconnectors
 To support the trend of readily available
SFP transceivers in industrial networks, it
is imperative that we provide a practical LC
field-connection solutionTechnical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI
IEEE 802.3u - 100BASE-FX

The Fast Ethernet over Fiber-Optic at 100
Mb/s application (100BASE-FX - 12.5MB/s
with auto-negotiation) is a version of Fast
Ethernet over optical fiber Uses 1300 nm wavelength transmitted via
two strands of optical fiber, one for receive(Rx) and the other for transmit (Tx) The standard specifies a max. distance of 2
km (6,600 ft) for full-duplex over FDDIgrade (Fiber Distributed Data Interface)
MM optical fiber (large power budget!)Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI

IEEE 802.3z - 1000BASE-SX

Gb/s Ethernet over Fiber-Optic at 1 Gb/s
(1000BASE-SX - 125 MB/s) is a gigabit
Ethernet standard for operation over MMF
 Standard calls for light operating
wavelength at approximately 850 nm
 The standard specifies a distance capability
between 220 meters (62.5/125μm with lowmodal bandwidth) and 550 meters(50/125μm with high modal bandwidth) Have to be careful with power budget!
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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page 8www.odva.org

SFF Electronics & MDI

IEEE 802.3z - 1000BASE-SX

 Channel designed

around connector
Insertion Loss of 1.5dBmax (2 connectors of1.5dB each max.) Possible to have higher
levels of IL in the1000BASE-SX channel
 May desire higher #s ofconnectors in channelor allow for simpler(and higher loss)
connectors to be used
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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New Fiber Solution

Graded Index Polymer Clad Multimode Fiber

Recently introduced Polymer Clad Fiber(PCF) fibers with improved bandwidth Environmentally/mechanically robust fiber Rapid connector field termination (simpletools/short learning curve
 ODVA recognizes the LC (sealed/unsealed)
and transceiver OEMs have standardized
the SFF LC as the MDI for 1Gb/s+
 Solution useful for 10/100Mb/s and 1Gb/s
EtherNet/IP applications
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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page 10www.odva.org

New Fiber Media Variant

Graded Index Polymer Clad Multimode Fiber

62.5/200/230
Graded-index PCF Fiber‘Traditional’
200/230 PCF
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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New Fiber Media Variant

Graded Index Polymer Clad Multimode Fiber

Designed for applications and harshenvironments that require high mechanicalreliability at the fiber level Hard coating, makes possible the vision of“electrician friendly” field terminations
 Silica is a ‘brittle’ material - strength
depends on surface flaw severity, not basic
material strength Under bending/tensile load, surface flaws
act as stress concentrators and grow insize resulting in catastrophic fiber failureTechnical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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New Fiber Media Variant

Graded Index Polymer Clad Multimode Fiber Polymer clad (applied during draw) creates chemicalbonds to silica, significantly improving fiber reliability
 “Bridge bonds” formed healing small flaws on the fiber
surface, making it impermeable to moisture ingress Fiber strength enhanced, static fatigue reduced

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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New Fiber Media Variant

Graded Index Polymer Clad Multimode Fiber

Strength degrades vs time (static fatigue) H20 acts as catalyst for crack growth Hard poly coating chemically bonds to fiber Significant improvement to mechanicalproperties - coating moisture impermeable
 Fiber strength greatly enhanced and staticfatigue is significantly retarded Managing static fatigue with PCF enables
tight, long-term bends, often found in theconfined spaces of industrial installations
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI

GI-PCF Field Terminable LC Design Goals

Termination OM1 & OM2-compatible PCFfiber in the field Terminate like a CATV 'F' connector - lessthan a minute termination
 Short learning curve Ability to perform connector end-facefinishing operation in seconds
 Support for aramid yarn-less cable
constructions (Zip & Break-out)
 “Push-Pull” functionalityTechnical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI

GI-PCF Field Terminable LC Design

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI

GI-PCF LC Field Termination Process

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI

GI-PCF LC Field Termination Process

Cleaving Tool (right) – performs
fiber end finishing in one action
 Tool applies known strain to fiber
exiting connector
 Diamond blade indexed on
ceramic ferrule nose that scores
fiber, producing mirror finish
 Fiber will slightly recess into thenose of the ferrule (typicallyabout 10 microns)Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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SFF Electronics & MDI

GI-PCF LC Field Termination Process

Typical cleaved GI-PCF
looking into ferrule Note cleave ‘vestige’ &mirror surface
 Fiber is approx. 13
microns recessed

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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PCF Cabling Systems
1Gb/s networks require either OM1 or OM2
 Duplex zip cord & 2/4 fiber breakout cable Elimination of aramid yarn
(simplifies termination)
 Intended for open pathway andzone/control panel builds
 Dual rated LSZH and Riser Cables use PCF fiber as crimp
substrate and strength memberTechnical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Ref. Architectures/Use Cases
Architecture

ERP, Email,Wide Area Network (WAN)Enterprise Zone(DMZ)

Patch Management
Terminal Services
Application Mirror
AV ServerGbps Linkfor Failover
Detection

Firewall(Standby)
Cisco
ASA 5500

Firewall(Active)

Industrial Zone
Site Operations and Control

FactoryTalk Application Servers• View• Historian• AssetCentre,• Transaction Manager

Catalyst
6500/4500

FactoryTalk Services
PlatformRemoteAccessServer• Directory• Security/Audit

Data Servers

(DMZ)

Cisco
Catalyst Switch
Catalyst 3750
StackWise
Switch Stack

Network Services• DNS, DHCP, syslog server• Network and security mgmt

Cell/Area zone

HMI

Rockwell Automation
Stratix 8000
Layer 2 Access Switch

Drive

Controller
HMI

Controller
HMI
Cell/Area #1
Redundant Star Topology
Flex Links Resiliency
Technical Track© 2012 ODVA, Inc.

I/O

I/O

Drive

DriveController
I/O
Cell/Area #2Ring Topology
Resilient Ethernet Protocol (REP)

I/O
Cell/Area #3
Bus/Star Topology

2012 ODVA Industry Conference & 15th Annual Meeting
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Physical Infrastructure Reference
Architecture Levels and Fiber Strategy

Physical Level
Cell/Area
Zone
Levels 0-1
End device
andController

Cell/Area
Zone
Levels 0-2
Control Panel

Technical Track© 2012 ODVA, Inc.

Fiber Strategy

Noise-Immunity
 High-Performance Linking Devices
 Ring or LinearTopologies
Secure Testable High Performance Uplinks for panelmounted switches
2012 ODVA Industry Conference & 15th Annual Meeting
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Physical Infrastructure Reference
Architecture Levels and Fiber Strategy

Physical Level

Fiber Strategy

Manufacturing
Zone
Levels 0-2
Network Zone
Cabling

Manufacturing
Zone
Levels 3
Micro Data
Center (core todistribution,distributionaccess)Technical Track© 2012 ODVA, Inc.

Robust Cost Effective Safe Zone
Architecture Distributing Fiber
Connectivity acrossthe Plant FloorSecure High Performance
Connections
 Plant Floor Fiber
Networks to Higher
Level Switches andServers
2012 ODVA Industry Conference & 15th Annual Meeting
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Ref. Architectures/Use Cases
Direct Attach Model

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Ref. Architectures/Use Cases
Structured Cabling Model

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Ref. Architectures/Use Cases

Structured Cabling Model - Cost Analysis

For most applications, PCF breakout cables
don’t require closed pathway (conduit) Deployment of PCF breakout cables in open
pathway system such as J-Hooks
 Cost saving compared tostandard non-PCF cables
pulled into conduit andterminated with Cam-styleor field polish connectors
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Ref. Architectures/Use Cases

SCS Model - Cost Analysis Assumptions
••
•
•

•

Conventional cabling is 4 fiber dist. cablein 1.5” dia., 1/8” wall HDPE conduit
PCF cabling is 4 fiber, ‘tactical’ style cable
Both are OM1Both cables installed on J-Hook systemand penetrate enclosures on each end(terminated inside each enclosure)Cam-style connectors installed on theconventional cabling system - PCF LC
system is installed on PCF cabling

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Ref. Architectures/Use Cases
SCS Model - Cost Analysis

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Channel Validation w/GI-PCF

Channel Impairments

 Mated fibers not in physical contact (air gap between

fibers causes a small insertion loss penalty)
 No physical contact produces reflection (added loss) Effects create incremental loss in connectors compared
to std LC connectors with conventional fiber Increased impairments when using PCF connectors in
1000BASE-SX (de-rated reach per 802.3u)
 High reflections can interfere with the transmitted signal
causing amplitude noise (degrading performance) Adding connectors incrementally increases reflections
 No limit to max. # of connectors deployed; practicalimplementations typically limit max. to two mated pairs
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Channel Validation w/GI-PCF

Channel Testing with BERT Effect of RL on 1Gbps channel - channel configured

using std’s compliant Ethernet SPF+ transceiver and a
MMF optical attenuator Signal return path connecting output ports of thecouplers was repeatedly disconnected and reconnected
to simulate a high/low channel RL
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Channel Validation w/GI-PCF

BERT Channel Results

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Solution Validation w/GI-PCF

Mechanical, Optical & Environmental Testing PCF LC tested toTIA/EIA-568-C for MMperformance Cable retention target
for industrial app’s instatic environment(zone box perm. link ordirect attach) is>0.5lbs (4-8 lbs target)
 Higher value (11.2 lbs)
based on use case ofduplex jumpers that
see a high # of MACs
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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Solution Validation w/GI-PCF

Mechanical, Optical & Environmental Testing

Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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GI-PCF Solution for Ethernet/IP

Summary

PCF proven reliable in many applications(Military, Oil/Gas, utility, factory
automation and Medical applications) New GI-PCF fiber variant provides MM
graded-index, high bandwidth, long reachfiber core in the same large diameter
footprint as traditional PCF solutions
 Benefits of PCF LC connectivity and fiber
media in EtherNet/IP architectures for bothStructured and Direct Attach cablingTechnical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
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page 34
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GI-PCF Solution for Ethernet/IP

Summary

Use of GI-PCF fiber media and PCF LC
connector systems into 1000BASE-SX SCSbased cable plant (with limited restrictions) Enables widespread field installation offiber EtherNet/IP - termination similar toPOF (but longer reach, higher bandwidth) Opens door to high bandwidth applications
at all levels of industrial networks
 Provides immediate benefit for 10/100M
EtherNet/IP “direct attach” networks
Technical Track© 2012 ODVA, Inc.

2012 ODVA Industry Conference & 15th Annual Meeting
All rights reserved.

page 35
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