HP J3188A manual Led, Pattern

Installing the Hub

Installing the Hub

Installing and Configuring Your Hub

2.Check the LEDs on the hub’s front panel. When the hub is powered on, it performs a power-on self test. See the table below for the LED pattern that occurs during the self test.

On for 20 seconds,	On for five
then enters	seconds, then	On for 20 seconds,
normal operating	enters normal	then enters
state.	operating	normal operating
	state.	state.

LED	Pattern
Port LEDs,	ON for approximately 20 seconds, then enters normal operating
Fault, Security,	state.
AUI
Activity,	ON for approximately five seconds, then enters normal operating
Collision, RPS	state.
System	Stays ON.

Note that once you have connected cables to the hub, a Port LED stays on if link beat has been detected at the port. A Port LED turns off if link beat is not detected. The AUI port stays on if it is enabled.

When the self test completes successfully, the LEDs go into their normal operational states. If a hub hardware fault exists, the hub will not complete self test. This will be indicated by an abnormal LED pattern.

If the self test time elapses and the Fault LED continues to stay on instead of turning off, the hub may have an error condition. If repeating the self test does not correct the problem and the Fault LED still stays continu- ously on, contact your reseller for replacement information. After the hub has passed its self test, you are ready to mount the hub.

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