Led Error Indications - HP AdvanceStack J2610B Installation And Reference Manual

Troubleshooting

LED Error Indications

LED patterns indicating problems
Power Collision AUI/Xcvr
*This LED is not important for the diagnosis.
2-4
Twisted-Pair
Port
OFF * *
ON * *
ON * OFF
ON * *
intermittently
Port
Verify that the power supply is plugged into an
*
active power source and to the hub. Make
sure these connections are snug. Try power
cycling the hub by unplugging and plugging
the hub back in.
If the Power LED is still not on, verify the ac
source works by plugging another device into
the outlet. Or try plugging the hub into a
different outlet. If this condition persists, call
your HP-authorized LAN dealer or HP
representative for assistance.
Check cabling on the indicated port all the
OFF
way out to the device attached to that port.
Faulty wiring or a bad connection could exist
somewhere in that connection.
The end node or hub attached to the port is off.
If you have an HP AdvanceStack 8U/16U
SNMP Module installed, see the module
manual.
If port 1, check the position of the MDI/MDI-X
switch. For hub-to-hub connections, set the
switch to MDI. For hub-to-PC connections, set
the switch to MDI-X.
Verify that the HP Transceiver Module is firmly
*
inserted into the AUI/Xcvr slot into the back of
the hub. See the documentation
accompanying the HP Transceiver module for
more troubleshooting information.
Check cabling on indicated port.
Flashing
If you have an HP AdvanceStack 8U/16U
SNMP Module, see the HP AdvanceStack
8U/16U SNMP Module manual to troubleshoot
this port with the ASCII console.
Diagnostic Tips