3Com 206380-A manual Chapter Troubleshooting, Diagnostic LEDs

Chapter 4

Troubleshooting

This chapter provides several methods for troubleshooting problems related to the BayStack 22 PC Card Adapter.

Diagnostic LEDs

Three LEDs on the media coupler of the BayStack 22 network card provide diagnostic information. The 10 and 100 Mb/s Link LEDs indicate successful network connections to Ethernet and Fast Ethernet devices, respectively. The Link LEDs remain steady if the connection is stable. You should check the RJ-45 connection if the LED is not steady. The Activity LED indicates active network traffic.

Table 4-1 describes the Link and Activity LED indications.

Table 4-1.	LED Indications
Label	Color	Activity	Description
10M	Green	On	A 10 Mb/s connection has been established.
		Off	Power is not supplied to the network card, or a 10 Mb/s
			connection is not established.
100M	Green	On	A 100 Mb/s connection has been established.
		Off	Power is not supplied to a network card, or a 100 Mb/s
			connection is not established.
ACT	Green	On	Heavy network traffic is passing through the port.
	Green	Blinking	Network traffic is passing through the connected port.
			The rate of blinking is proportional to the amount of
			network traffic.

206380-A 4-1