HP J3175A, J3177A manual LED Error Indications, Diagnostic Tips

Troubleshooting

LED Error Indications

LED Error Indications

LED patterns indicating problems				Diagnostic Tips
Power	Fault	RPS	Port
OFF	*	*	*	Check the power cord and power source. If they are OK, the switch
				may have to be replaced. Contact your HP-authorized LAN dealer
				or HP representative for assistance.
ON	OFF	*	OFF when	Link beat has not been detected on the port. Check that the cabling
			cable first	on the indicated port is connected properly. Faulty or improperly
			connected	wired cables are common; try a different cable.
				For the 100 Mbit/s ports, verify that you are using category 5, or
				better, UTP or the appropriate fiber-optic cable. Also, the you have
				not connected a 10 Mbit/s device to the port.
				If you have a Management Module in the switch, use HP
				AdvanceStack Assistant or the switch console to determine the
				state of the port:
				- Determine if the port was disabled. Re-enable if desired.
ON	Flashing	*	Flashing	This could only occur with the port LED for the 100 Mbit/s transceiver
				port, and only when a 100VG transceiver module has been installed
				in the slot. Only 100Base-TX and 100Base-FX transceivers should
				be installed in the transceiver slot.	Troubleshooting
ON	Flashing	Flashing	*	The Redundant Power Supply (RPS) has experienced a fault and is
				now using its backup power capabilities. See the documentation
				provided with the RPS for troubleshooting.
OFF	*	OFF and	*	The switch is not receiving power from the Redundant Power Supply
		you are		(RPS). If you have an RPS connected, check the status of the RPS
		using an		and check the cable and power connections on both the switch and
		RPS		the RPS.
ON	Flashing	*	Variable	A fault has been detected during self test in a switch component that
				controls network communications through multiple switch ports.
				Try power cycling the switch. If the error persists, the switch may
				have to be replaced. Contact your HP-authorized LAN dealer or HP
				representative for assistance.
ON	ON for a	*	Variable,all	A switch hardware failure was detected during self-test. Self-test
	pro-		may be ON	does not complete so the LEDs will stay on longer than 60 seconds.
	longed
	period			Power cycle the switch. If this condition persists, the switch may
				have to be replaced. Contact your HP-authorized LAN dealer or HP
				representative for assistance.
* This LED is not important for the diagnosis.
The flashing behavior is a regular pulse once every 1.6 seconds, approximately.

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