3Com 5101T-FB-SMA, 5101T-FB-FC, 5101T-FB-ST manual Troubleshooting, Status LED

If after completing Steps 1 and 2 you find blink- ing Status indicators on connected and enabled modules or devices, refer to the Troubleshooting section in this manual.

Troubleshooting

This section explains how to use the diagnostic features of the 10BASE-FB Transceiver for fault isolation. This section describes:

■Status LED

■Troubleshooting Fiber Links

■System Problems

Status LED

The 10BASE-FB Transceiver provides a diagnostic status LED that indicates link status. The normal state for this indicator is the steady ON state. If the LED is OFF, this usually indicates lack of power.

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