Huawei PTN Series Quick Installation Manual page 14

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Checking the Connectivity of Optical Fibers
External cable
NOTE
To check the connectivity of an optical fiber, you need to check the deviation of the optical power between an optical
interface on the card and the peer interface on the ODF. If the optical power meter reads a value less than or equal to 1 dB,
the connectivity of the optical fiber is correct. Otherwise, check the optical fiber.
If the tail fiber is connected through a flange during the check process, the deviation should be less than 2 dB.
When an optical power meter is used during a test, it is recommended that you record the actual transmit optical power of
each optical interface and check whether the transmit optical power is normal.
Consult the project supervisor or software engineer and determine whether it is necessary to test the receive optical power
using an optical power meter to check whether the receive optical power is normal.
Checking the optical fiber
connected to the OUT interface
Optical power meter
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