Fiber connections on the optical ports of the WMU board

4

The IN1 and IN2 optical ports on the WMU board separately connect to the MON port on two OA or FIU/ITL boards configured in two different transmit directions for centralized wavelength monitoring.

Other related questions:
Optical fiber connections of the TN12OAU board
One multiplexed optical signal received at the IN port is sent to the EDFA optical module. The EDFA optical module amplifies the optical power of the signal and locks the gain of the signal. The signal is then transmitted to the DCM board through the TDC port for dispersion compensation. Then, the signal is sent back through the RDC port. The amplified multiplexed signals are output through the OUT port. The multiplexed signal can also be input through the VI port and output through the VO port after the optical power is adjusted. Then, the IN port receives the multiplexed signal sent from the VO port.

Reason for a WAVELEN_OVER alarm reported on the WMU board when physical and logical fiber connections are inconsistent
When physical and logical fiber connections are inconsistent, the wavelength locking function triggers a false wavelength adjustment. As a result, a WAVELEN_OVER alarm is reported.

Fiber connections for the SFIU boards
The fiber connections for SFIU boards vary depending on their positions on the NEs and networks.

Fiber connections of TN12OAU boards
One multiplexed optical signal received at the IN port is sent to the EDFA optical module. The EDFA optical module amplifies the optical power of the signal and locks the gain of the signal. The signal is then transmitted to the DCM board through the TDC port for dispersion compensation. Then, the signal is sent back through the RDC port. The amplified multiplexed signals are output through the OUT port. The multiplexed signal can also be input through the VI port and output through the VO port after the optical power is adjusted. Then, the IN port receives the multiplexed signal sent from the VO port.

Threshold of the input optical power of a WMU board in the OSN 6800
For the WMU board in the OSN 6800, its single-wavelength input optical power must be in the range of �?6 dBm to �?6 dBm.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top