Siemens Industrial Ethernet Switches SCALANCE X-200 User Manual download pdf (Page 226)

Configuration / diagnostics using remote mechanisms

6.3 Configuration using Web Based Management (WBM) and Command Line Interface (CLI)

SCALANCE X-200

226 Operating Instructions, 12/2011, A5E00349864-19

Yellow:

If the link power margin enters this range, maintenance is necessary. The boundary of the

yellow area is at a link power margin of 2 dB. To ensure long-term functionality of the

system, the maintenance should be performed. If the link power margin is in the yellow

range, this is signaled by the FO LED lighting up.

NOTICE

The page for diagnostics of fiber-optic cable only shows correct link power margins when

plastic optical fiber (POF) is used. If polymer cladded fiber (PCF) is used, diagnostics is not

possible.

6.3.5.35 The "Loop Detection Config" WBM menu

Loop Detection Configuration

On this page, you specify for the ports for which loop detection will be activated. These ports

send test frames. If these frames are sent back to the device, there is a Loop.

Note

Note that the functions of the "Loop Detection Configuration" WBM menu are not available

for X200IRT.

If the frames are received again at another port of the same device, there is a "Local Loop"

involving this device.

If the sent frames are received again at the same port, there is a "Remote Loop" involving

other network components.

Note

Note that loop detection is only possible at ports that were not configured as ring ports.

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Siemens Industrial Ethernet Switches SCALANCE X-200 User Manual Page 226