3Com 5124M-TPCL manual Troubleshooting Using the Port Status LEDs

Table 4-1. Troubleshooting Using the Port Status LEDs (Continued)

LED State	Indication	Possible Cause	Corrective Action
1 Blink	Link Failure	Link Integrity	Make sure that
(continued)	(continued)	mismatch.	both ends of the
			connection have
			the same Link
			Integrity setting.
2 Blinks	Port	Faulty cable.	Check cable with
	Partitioned		cable tester.
			Repair or replace
			cable.
		Network	Reassign users to
		overloaded.	another network
			to balance the load.
Off	Ports	Ports disabled.	Enable ports.
	Disabled
		24-Port Module	Check the
		not powered up.	Controller Module
			Power LEDs.
		Broken LED.	Press the LED test
			button on the
			Controller Module.
		Bad 24-Port	Replace module.
		Module.

Troubleshooting 4 - 3