Troubleshooting multiple wavelength alarm

Dear friend!

Please refer to the following information:

Possible Causes

The possible causes of the MUT_LOS alarm are as follows:

1. No fiber is connected to the transmit optical port of the local board or the fiber is damaged.

2. The signals undergo too much attenuation during the transmission.

3. The board is faulty.

Procedure

1. Check whether the fibers are properly connected according to the engineering fiber connection drawing. Each input optical signal with a different wavelength must be accessed to the specified input optical interface. If not, correct the fiber connection according to the drawing.

2. If the MUT_LOS alarm persists, use the optical power meter to measure the received optical power at the local station. Check whether the received optical power is within the normal range. For the specifications of board optical power, refer to the Product Description.

3. If the optical power received at the local board is too low, follow the way of clearing the SUM_INPWR_LOW alarm to troubleshoot it.

4. If the MUT_LOS alarm still persists, check whether the optical power transmitted at the opposite station is normal. If not, the opposite board or the optical module on it is damaged. In this case, replace the faulty board.

5. If the MUT_LOS alarm still persists, the local board may be faulty. In this case, replace the faulty board.

Thank you！