Siemens SCALANCE X-200 Configuration Manual page 120

Menus in the WBM
5.4 The Switch menu
Monitoring optical links
With Fiber Monitoring, you can monitor optical links.
If you enable FM on an optical port, diagnostics information is sent via the port. In addition to
sending, there is also a check to establish whether information is being received.
Regardless of whether the IE switch receives diagnostics information, it monitors the
received power and compares it with selectable power limits.
If you connect two IE switches via optical ports with FM enabled, they exchange their
diagnostics information. This also allows a power loss to be calculated. The power loss is
also compared with selectable power limits.
If the value of the received power or the power loss falls below a specified limit, an event is
triggered. In "Agent > Event Configuration", you can specify how the IE switch indicates the
event. In "X-200 > Fault Mask", you can also specify whether or not an error should be
signaled.
Figure 5-36 Fiber Monitoring Protocol
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Configuration Manual, 03/2015, C79000-G8976-C285-06
SCALANCE X-200