Testing a Fanout-to-Multifiber

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Testing a Fanout-to-MultifiberThis document will outline how to test a Fanout-to-Multifiber using the unidirectional orbidirectional method.
Unidirectional
The advantage of unidirectional testing is speed. In a single pass, MS12001 will measure the RLof each connector and the total loss of both connectors:• ILTOTAL = ILA + ILB
• RLA
• RLB
Bidirectional
With bidirectional testing, each side of the DUT is tested separately. The advantage is that the IL
and RL of each connector is measured:
• ILA
• ILB
• RLA• RLB

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Testing a Fanout-to-Multifiber
Begin by configuring the DUT. In this example, the DUT is a multimode 12 fiber FC/APC –MPO/PC fanout-to-multifiber.

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Testing a Fanout-to-Multifiber
Unidirectional Testing
Unidirectional testing will require the DUT to be tested between two master test jumpers:• MTJ 1 = 12 simplex FC/APC – FC/APC jumpers• MTJ 2 = 12-fiber MPO/PC – MPO/PC ribbon cable

FC/UPC – FC/APC(MS12 output to MS7 common)

Detector adapters:
MDA101 (FC)

FC/APC – FC/APC * 12(MTJ 1)

MDA117 (MTP/MPO)
MDA-R05

MPO/PC – MPO/PC(MTJ 2)
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FC/APC*12 – MPO/PC(DUT)

Testing a Fanout-to-Multifiber
Unidirectional Testing•www.jgroptics.com

Setup a unidirectional test type.

Testing a Fanout-to-Multifiber
Unidirectional Testing•www.jgroptics.com

Reference each simplex FC/APC – FC/APC MTJ 1.

Testing a Fanout-to-Multifiber
Unidirectional Testing•www.jgroptics.com

The MTJ 2 reference only requires a length value. Since MTJ 1 and MTJ 2 cannot be
connected together, enter the length manually.

Testing a Fanout-to-Multifiber
Unidirectional Testing•

Connect the DUT between MTJ 1 and MTJ 2.

FC/APC * 12(Connector A)

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MPO/PC(Connector B)

Testing a Fanout-to-Multifiber
Unidirectional Testing•••www.jgroptics.com

Click Start Single to test the DUT
In a single pass, MS12001 will measure ILTOTAL, RLA and RLBEnter a serial number and click Next DUT to save the results and move on to the next DUT

Testing a Fanout-to-Multifiber
Bidirectional Testing••www.jgroptics.com

By using a switch with twice as many ports as the DUT, both MTJs can be connected to theswitch at the same time.
Go to Switch Port(s) Configuration to assign the connectors to the appropriate ports.

Testing a Fanout-to-Multifiber
Bidirectional Testing
Bidirectional testing will require master test jumpers to match each end of the DUT• MTJ for Connector A = 12 simplex FC/APC – FC/APC jumpers• MTJ for Connector B = 12-fiber FC/APC – MPO/PC fanout

FC/APC – FC/APC * 12
(MTJ Connector A)

FC/UPC – FC/APC(MS12 output to MS7 common)

FC/APC*12 – MPO/PC(MTJ Connector B)
Detector adapters:
MDA101 (FC)
MDA117 (MTP/MPO)
MDA-R05

FC/APC*12 – MPO/PC(DUT)
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Testing a Fanout-to-Multifiber
Bidirectional Testing•www.jgroptics.com

Setup a bidirectional test type.

Testing a Fanout-to-Multifiber
Bidirectional Testing•www.jgroptics.com

Reference each MTJ for the first direction.

Testing a Fanout-to-Multifiber
Bidirectional Testing•

Reference each MTJ for the first direction.

Ports 1-12 wereassigned toFC/APC

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Testing a Fanout-to-Multifiber
Bidirectional Testing•

Connect the DUT to measure in the first direction

MPO/PC(Connector B)

FC/APC * 12(Connector A)
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Testing a Fanout-to-Multifiber
Bidirectional Testing••••

Click Start Single to measure Connector A.
Enter a serial number and click Next DUT to save the results and move on to the next DUT.
When you wish to measure Connector B, click Second Direction.
You can test Connector A of many DUTs before doing this. The results will be saved together
in the database for the same serial number.

Note: when pressing Second Direction, aprompt will warn you that you will lose yourreference for end A.
If you do not disconnect your MTJ you cansave your first reference by going into
Settings > Measurement Options > Require
New Reference and selecting No.
This is only possible if the switch has twice
as many ports as the number of fibers of theDUT.

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Testing a Fanout-to-Multifiber
Bidirectional Testing•www.jgroptics.com

Reference the MTJ for the second direction

Testing a Fanout-to-Multifiber
Bidirectional Testing•

Reference the MTJ for the second direction

Ports 13-24 wereassigned toMPO/PC

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Testing a Fanout-to-MultifiberBidirectional Testing•

Connect the DUT to measure in the second direction

FC/APC(Connector A)

MPO/PC(Connector B)

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Testing a Fanout-to-Multifiber
Bidirectional Testing•••www.jgroptics.com

The results for Connector A of the corresponding serial number are displayed.
Click Start Single to measure Connector B.
Click Next DUT to save the results and move on to the next DUT.