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Jfopt Location: Jfopt > News > Fiber knowledge > MTP/MPO Fiber Optic Patch Cord Test Methods Summary

MTP/MPO Fiber Optic Patch Cord Test Methods Summary

Edit: 16-9-13   Date: 16-09-13

First Point´╝Ä  Three testing methods:

Method A

For  method A , using two MPO / MTP Fiber jumpers and a connector (consider a direction, as shown in the upper half portion of the following picture ) to set the reference value . After setting the reference value, then the link to be tested come in (the lower half  portion of the following picture ) and to be tested.

Method A test results for each direction including the loss of the fiber and the connector ;Therefore , method A is  used to test such  fiber link: a fiber link with a connector at one end and the other end does not.

Method B

    For Method B, only using one  MPO/MTP fiber optic patch cord (consider a direction, as shown in the upper half portion of the following picture )to set the reference value .After setting the reference value , then the link to be tested come in (the lower half  portion of the following picture ) and to be tested.


   Method B test results including both ends loss of the fiber link and connection . Thus, Method B is used to test such fiber optic link: both ends of the link are with connector, which connectors loss is an important part of the entire loss.

  Method C


For Method C , using three optical fiber patch cords  and two connectors (one-way)and the length between the two fiber optic patch cords are less than 1Meter; to set a reference value ;using the fiber link being tested to replace the fiber optic patch cords between the connectors  when testing the link.

Thus , Method C test results just including the fiber loss ,not including the loss of the both two ends .

Second Point: Please pay attention to the following items before the testing

1. Firstly, ensuring  the  testing patch cords and being tested patch cords connectors end faces are clean ;

2.  Ensuring the testing patch cord  and the being tested patch cord are made and female separately , MPO / MTP patch cords are male connectors with female connectors  during the testing and operation ;

3. As the MPO / MTP patch cords are with A, B, C  polarity distinction, please pay attention to select the appropriate test line when testing the link..

4. The test equipment must be carried out with a multi-channel multi-function devices 

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