Siemens SCALANCE XM-400 Configuration Manual page 314

Configuring with Web Based Management
5.5 The "Layer 2" menu
the received power and the transmit power represents the power loss on the link. The
calculated power loss is also monitored for the set limit values.
If the value of the received power or the power loss falls below or exceeds the set limit values,
an event is triggered. You can set limit values in two stages for messages with the severity
levels "Warning" and "Critical".
In "System > Events > Configuration", you can specify how the IE switch indicates the event.
Note
If you have enabled fiber monitoring and a pluggable transceiver with diagnostics capability is
pulled, fiber monitoring is automatically disabled for this port and the set limit values and a
possibly pending error status are deleted.
Description of the displayed boxes
In the table you can specify the limit values for the measured received power too be monitored
and the calculated power loss.
● Port
Shows the optical ports that support fiber monitoring. This depends on the transceivers.
● Status
Enable or disable fiber monitoring.
As default, the function is disabled.
● Rx Power [dBm] maintenance required (Warning)
Specify the value at which you are informed of the deterioration of the received power by
a message of the severity level "Warning"
If you enter the value "0", the received power is not monitored.
The default value depends on the relevant transceiver.
● Rx Power [dBm] maintenance demanded (Critical)
Specify the value at which you are informed of the deterioration of the received power by
a message of the severity level "Critical"
If you enter the value "0", the received power is not monitored.
The default value depends on the relevant transceiver.
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SCALANCE XM-400/XR-500 Web Based Management (WBM)
Configuration Manual, 05/2017, C79000-G8976-C248-12