Technical Paper I
opticalCON MTP 24 LITE®

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Content1 Optical Attenuation ........................................................................................................................ 32 Vibration .......................................................................................................................................... 53 Cable Retention ............................................................................................................................... 74 Locking Mechanism ......................................................................................................................... 85 Impact .............................................................................................................................................. 9
6 Mating Durability .......................................................................................................................... 11
7 Change of Temperature ................................................................................................................ 14
8 Flexing ............................................................................................................................................ 16

Technical Paper – opticalCON MTP® 24 LITE
Title: NTP09© NEUTRIK AG. All rights reserved.

Subject:
Mechanical and optical tests applied to the opticalCON MTP LITE
transmission system for Pro Audio / Video industry purposes withmain focus on changes in attenuation.
Optical performance is being examined with regard to attenuationand its variation vs. environmental and mechanical conditions.
This documentation describes the results of the test series conductedat Neutrik AG and University of Applied Sciences of Technology
Buchs NTB.

2The tests were carried out in accordance with the IEC-Standard
main groups IEC 60794 and IEC 61300 as well as to Neutrik internal
specifications.

NEUTRIK AG is not to be held liable for statements and declarations
given in this technical paper.
NEUTRIK AG explicitly exonerates itself from all liability for mistakes
in this white paper.

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1

Optical Attenuation

Object:Examination of the receptacle NO24FDW-A in combination with the opticalCON® MTP® 24 LITE cableconnector to determine the attenuation in a fiber optic system.
For the test of the cable connector a completely assembled opticalCON cable was used. See fig. 1.
Test Set-Up:
Test specimens:
Test procedure:
Test equipment:		
Launching cables:
Measuring wave lengths:
Cable length:
Comment:		

Single-mode NKO24SA-L-0-1
Occurred according to IEC 61300-3-4 (fig. 4)
OptoTest OP930
light source
OptoTest OP710power meter
0.9 mm precision fibers
1.310 nm + 1.550 nm
single mode
1m
Short cable lengths do not affect attenuation remarkably andare therefore not considered.

figure 1.a : reset to zero attenuation

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NKO24SA-L-0-1

figure 1.b: Simplified measuring arrangement

Limited Insertion Loss Values (per cable):Single-mode:

0.45 dB

Results:
Basis of test series: 50 sets of cable assemblies
0.50
0.45
0.40
0.35
rIL in dB

0.30
0.35
0.20
0.25
0.20
0.15
0.10
0.050Single-mode (1310):

Single-mode (1550):

figure 1.c: Achieved values of the 50 sets test series

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2Vibration

Object:Examination of the two components, receptacle NO24FDW-A and the opticalCON® cable connector. The
intention of the test was to determine their attenuation in a fiber optic system before, during and after
the vibration test.
In addition the function of the mechanical locking system and the wear were investigated.
The test was carried out by an independent laboratory: NTB, “Interstaatliche Hochschule für Technik
Buchs” division “Labor Mess- und Simulationstechnik” located in Buchs / Switzerland.
Test Set-Up:
For the vibration test two receptacles NO24FDW-A per axis were mounted. The front side was mated witha NKO24SA-L-0-2 opticalCON® MTP® 24 LITE cable. The rear end was connected with the test instrument
via precision measuring cables (see fig. 2 a/b).
The applied test set-up complies with IEC 61300-2-1 table 1.
Shaker:		
Test instruments:		
Launching cables:
Measuring wave lengths:
DUT cable length:
Comment:		

TIRAVIB Model 5520, controlled by an external
power amplifier and a PC with software SignalStar Vector (fig. 2 a/b).
Kingfisher KI 2824
light source
Kingfisher KI 2600-Ge
power meter
0.9 mm precision fibers
1.310 nmsingle mode2m
Short cable lengths do not affect attenuation remarkably andtherefore not considered.

Vibration Severity:
Frequency range:
Amplitude displacement:
Sweep rate:
Number of sweeps:
Axis:		

10 – 55 Hz
0.75 mm (1.5 mm pp)
1 oct / min
15Y, Z

After 15 cycles the receptacles were changed to the next axis without disconnecting the plugs to avoid
any mismatching.

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Results:
Attenuation before, during and after vibration test:a)Changes in attenuation:

Single-mode (1310nm):- 0.03 dB

Measurement during vibrations showed no variation in attenuation.

b)

MechanicalThe locking mechanism withstands this extreme vibration without any functional impairment.

figure 2.a: : Vibration equipment and test cable arrangement

6

figure 2.b: : Vibration equipment and test cable arrangement

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3

Cable Retention

Object:
Test of the cable retention efficiency. The opticalCON® MTP® 24 LITE cables were exposed to tractive forces
until the cable started to move.
Test Set-Up:
The applied test procedure is referred to IEC 61300-2-4.
Tension-Tester:
Measuring Instruments:
Assembled cable types:

Versa Test Mecmesin 0 - 1.000 N (fig. 3)
AFG-R 1000N Mecmesin
5 pieces of NKO24SA-L-0-1 (single-mode 24 fibers)

Results:
NKO24SA-L-0-1:> 250 Nfigure 3: Equipment for examination of cable retention

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4Locking Mechanism

Object:Tensile strength measurement of the locking mechanism.
Test Set-Up:
Same test set-up as used in clause 3. Cable Retention.
Instead of the cable a mechanical adapter was used to fix the plug.
Results:
Tensile strength> 300 NAt a force of 300 N the test was stopped without any damages of the locking device.

figure 4: Equipment for examination of locking mechanism

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5Impact

Object:
The impact test is performed to show possible deformations or plug malfunction of the internal mechanism
due to heavy mechanical exposure.
Test Set-Up:
The applied test procedure is referred to the IEC 61300-2-12 Method A pendulum drop (fig. 5).
Test item:
First part of test:
Second part of test:

opticalCON® MTP® 24 LITE cable connector
front side of connector protected by a protection cap of EPDM
no connector protection

Parameters of Test:
Distance from centre of rotation:
Number of drops:
Height of falling:
Ground:Plug fixation:

2.25 m5
1.0 – 1.9 m
steel plate, thickness 25 mmsmall wire

Results:
Tests 1 – 3:

No visible abrasions, no functional impairment

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figure 5.a: Test set-up “Impact”

TEST #with cap

drop heigh [m]dropsresult

1

yes

1.0

5

no visible abrasion full function

2

yes

1.9

5

no visible abrasion full function

3

yes

1.0

5

no visible abrasion full function

figure 5.b: Impact test IEC 61300-2-12 method A

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6Mating Durability

Object:
The mating durability test was carried out to show variations in attenuation (optical) after lifetime.
Test parameter:
NKO24SA-L-0-1 (single mode 24 fibers)
Test Set-Up:
Test procedure occurred according to IEC 61300-2-2 figure 4!
The test was realized with the equipment shown in fig. 6.
Mating cycles:		
Launching:		
Microscope:
Measuring cables:
Measuring wave lengths:
DUT cable length:

250 (durability test)
2’500 (lifetime test)
Kingfisher KI 2824
Kingfisher KI 2600-Ge
enlarged x 200
0.9 mm precision fibers
1.310 nm1m

light source
power meter

single-modeResults:
250 cycles (durability test):
The microscopic assay shows a slight degree of contamination after 250 mating cycles due to the factthat the fibers are not protected by a separate shutter. The attenuation values still meet Neutrik’s internalrequirements of < 0,45 dB/connection.
Single-mode: 0.1 dB degradation without cleaning, 0.05 dB degradation after cleaning
2’500 cycles (lifetime test)
The visual inspection shows a slight degree of contamination of the fiber (soil remains) after 2’500 matingcycles.
MEASURING

BEFOREE LIFETIME TEST [dB]

AFTER LIFETIME TEST [dB]

VARIATION [dB]

Return Loss

72.6

68.7

3.9

Insertion Loss

0.16

0.26

0.1

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250 cycles - Durability test

figure 6.a: measuring setup for durability and lifetime test

Fiber condition

figure 6.b: Ch1 / sm: slight visual degradation (soil)

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2’500 cycles - Lifetime test
Fiber condition

figure 6.c: Ch1/ sm: slight visual degradation

Due to the results, Neutrik AG definitely recommends changing to the opticalCON® ADVANCED productrange, when higher mating cycles are required.

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7

Change of Temperature

Object:Variations in attenuation due to temperature changes.
The test was arranged with a single-mode cable which is more critical than multimode.
Test Set-Up:
Test procedure according to IEC 61300-2-22 in combination with IEC 61300-3-4 (Fig 7.a)The test was realized in a temperature testing chamber type WEISS WK11-180/40.
Test cycles:
Profile of temperature:
Test instruments:		
Launching cables:		
Measuring wave lengths:
Cable length:
Test specimen:

16 (96 h)-25°C to +75°C (fig. 7a)
Kingfisher KI 2824
light source
Kingfisher KI 2600-Ge
power meter
0.9 mm precision fibers, constantly connected with the DUT(device under test) in the test chamber.
1.310 nmsingle mode		5m
NKO24SA-L-0-10

Results:
Maximum increase in attenuation 0.1 dB over the temperature range between +23°C and +75°C.
In the temperature range from -25°C to 75°C the insertion loss meets Neutrik’s requirement. (fig. 7b)

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figure 7.a: Test setup of temperature influencerIL in dB

Temperature Change
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0-0.02
-0.04
-0.06
-0.08
-0.1
-0.12
-0.14

-25°C

+23°C
Temperatur

+75°C

+23°C
NKO12SA-L-0-10

figure 7.b: Increase of the IL due to temperature change

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8Flexing

Object:Variations of attenuation and mechanical damage of fiber optic cable due to a defined
flexing procedure.
Assembled cable types:
NKO24SA-L-0-1 (single-mode 24 fibers)
Test Set-Up:
Measurement of attenuation before, during and after flexing cycles.
The applied test procedure is referred to IEC 61300-2-44 in combination with IEC 61300-3-4 Fig. 9.a.
Test equipment:
Test cycles:
Mass of weight:
Flexing angle:
Flexing speed:
Test Instruments:		
Launching cables:
Measuring wave lengths:
DUT cable length:

fig. 8.b
1’000 / 5’000
10 N or 20 N depending on cable type± 90°
ca. 12 cycles / minKingfisher KI 2824
light sourceKingfisher KI 2600-Ge
power meter
0.9 mm precision fibers
1.310 nmsingle mode
1mResults:a) Change in attenuation:
Single-mode:

0.05 dB to 0.27 dBb) Mechanical cable damage:
1,000 cycles:
5,000 cycles:

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no damageno significant damage

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NO24FDW-A
NKO24SA-L-0-1

figure 8.a: Principle of Test according to IEC 61300-2-44 (IEC 61300-3-4)

figure 8.b: Test Equipment and Fixture for flexing test

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Technical Paper – opticalCON MTP® 24 LITE19Japan
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Higashinihonbashi, Chuo-ku, Tokyo 103
T +81 3 3663 47 33, mail@neutrik.co.jp
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Neutrik Hong Kong LTD., Suite 18, 7th Floor Shatin Galleria
Fotan, Shatin
T +852 2687 6055, neutrik@neutrik.com.hk
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T +86 574 88250488 800, neutrik@neutrik.com.cn
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Neutrik India Pvt. Ltd., Level 3, Neo Vikram, New Link Road,
Above Audi Show Room, Andheri West, Mumbai, 400058
T +91 982 05 43 424, anklesaria@neutrik.com
Associated companies
Contrik AG
Steinackerstrasse 35, 8902 Urdorf, Switzerland
T +41 44 736 50 10, contrik@contrik.ch
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Felix-Wankel-Straße 1, 85221 Dachau, Germany
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www.neutrik.com®

USA
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T +1 704 972 30 50, info@neutrikusa.com®

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T +33 1 41 31 67 50, info@neutrik.fr

opticalCON MTP® 24 LITE Technical Paper 2017/04 V1 - NTP09 - Data subject to change without prior notice. © 2017 NEUTRIK . NEUTRIK is a registered trademarks of NEUTRIK AG. ALL RIGHTS RESERVED.

Great Britain
Neutrik (UK) Ltd., Westridge Business Park, Cothey Way
Ryde, Isle of Wight PO33 1 QT
T +44 1983 811 441, sales@neutrik.co.uk

opticalCON MTP 24 LITE TECHNICAL PAPER

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T +49 8131 28 08 90, info@neutrik.de®

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