HP 10BASE-T Installation Manual download pdf (Page 9)

HP AdvanceStack 10BT Switching Hubs Installation Guide

2. If you are not using an RPS, plug the included power cord into the hub’s power cord receptacle

and into an AC power source as shown below.

3. Check the LEDs during self test. Initially, all LEDs are on except the Expansion Slot LEDs and

Transceiver if an Expansion Slot Module or transceiver is not installed. After the two second

self test (or 10 second self test with Management Module), the following LEDs are on:

If the above behavior does not happen, use this troubleshooting information to diagnose the problem:

If the above tips do not help, see chapter 3, “Troubleshooting” in the Switching Hubs Reference

Manual for additional information.

Condition Diagnostic Tip

Power LED is

OFF

Check power cord and power source connections. If connections are secure, then try a different

outlet, or try a different power cord to see if the power cord is the problem.

RPS LED is

OFF

and should be

The hub is not receiving power from the Redundant Power Supply (RPS) or the cable connection is

loose. If you have an RPS connected, check the cable connections. Try connecting the RPS to a

different outlet.

Module Fault LED

Turn off the hub and reinsert this module making sure the screws are tightened. If the Fault LED is

still on, insert the module into a different hub.

Hub Fault LED is

A hub or slot module hardware failure was detected during self-test. Self-test does not complete so

the LEDs will stay on longer than 60 seconds. If you have installed a Switch Module in the stack, verify

that a Management Module is also installed in that stack.

Power cycle the hub. If this condition persists, the hub may have to be replaced. Contact your

HP-authorized dealer or HP representative for assistance.

Hub Fault LED is

flashing

Corresponding LED (such as RPS or port) will also flash at the same time. Make sure SQE is disabled

for the transceiver module if the AUI/Xcvr LED is flashing.

power receptacle

on the back of the hub

Power on

RPS on if Redundant Power Supply is connected

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HP 10BASE-T Installation Manual Page 9