16
Precautions of Maintenance Operations
Precautions for Laser Safety
1. The unused optical interface and optical connector should be
covered with optical caps
2. Cleaning the optical interface and fiber jumper connector
3. Precautions for the loop back operation of the optical interface
board:using attenuator
4. Precautions for replacement of optical interface board:pull off the
optical fiber from the circuit board first
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