Huawei OptiXRTN 950 V100 Quick Installation Manual page 10

Precautions for Installing IF Cables (Dual-Channel IF Board)
CAUTION
When installing an IF cable, connect one end of the cable
to the ODU and then connect the other end of the cable to
the IDU.
Connect the IF cable to the ODU.
Precautions for Removing IF Cables (Dual-Channel IF
Board)
CAUTION
When removing or replacing an IF cable, disconnect one
end of the cable from the IDU and then disconnect the
other end of the cable from the ODU.
Disconnect the IF cable from the IDU.
Connect the IF cable to the IDU.
Disconnect the IF cable from the ODU.
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