VFL TESTING
8
Testing 12-fiber MPO cables with a Visual Fault Locator and DataCenter 12 MPO Optical Switch
STEP 1
Power ON both the VFL and the MPO Switch.
SC/UPC-SC/UPC patch cable (ensure correct fiber type)
STEP 2
Connect the VFL and optical switch to the MPO cable under test using the accessories as shown below.
STEP 3
Set the MPO switch to MPO switch Channel 1
IMPORTANT NOTE:
based on what type of MPO cable is being tested, the light from MPO Channel 1 will appear in different places at
the far end. This is helpful to visually verify the polarity of the cable under test. See diagram below for common standards-based MPO
polarity arrangements.
For example, when the MPO optical switch is set to Channel 1, the light will be seen on Fiber 1 for Type A, Fiber 12 for Type B, and
Fiber 2 for Type C.
STEP 4
Press the UP arrow button ( ) to change to the next channel.
MPO CABLE UNDER TEST
1
12
Key Up
Key Down
Type A (Straight)
Key Up
Key Up
Type B (Reversed)
Key Up
Key Down
Type C (Pairs Flipped)
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APPLICATIONS
