HP J2600A, Installation And Reference Manual

Page: 74 / 138

LED Error Indications
The tables on the next two pages describe LED patterns that indicate
error conditions.
LED patterns indicating problems Diagnostic Tips
Power Collision Fault Security RPS Exp
Slot
Port
OFF * * * * * *
Check power cord and power source. If OK, replace
hub.
ON * OFF OFF * * OFF or
flashing
intermit-
tently for
a port in
use.
Check cabling on indicated port.
Use HP Stack Manager or the ASCII console STatus
command to determine the state of the port. For
HP Stack Manager, review the graphical image of
your hub to determine whether:
– the port was disabled by the Port function. Re-
enable if desired. A disabled port is grayed-out with
a black bar through it.
– For a twisted-pair port, link beat is not detected. In
this condition, the link beat bar (below the port
symbol on the graphic display) will be red. Be sure
the cable is properly connected.
– For the ThinLAN port, Thinwatch is disabled (the
default value) and the port is auto-segmented (the
port symbol will be red).
Thinwatch improves diagnosis of a faulty ThinLAN
port. Configure Thinwatch from HP Interconnect
Manager or from the ASCII terminal.
ON Appears
solidly
ON
* * * * *
Very frequent collisions could indicate a network
fault or improperly terminated cable.
A transceiver attached to the AUI port may not have
the SQE test disabled.
*This LED is not important for the diagnosis.
T
r
oub
lesh
ooting
Troubleshooting
4-4
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com