HP 24S Guide de l'utilisateur télécharger pdf (Page 25)

1. Plug the power cord into the hub’s power socket and into an ac power source. Note

that the hub does not have a power switch; the hub is powered on when the power

cord is plugged in.

The HP EtherTwist hubs have a power supply that automatically adjusts to any

ac power source that provides between 90 and 240 volts. No voltage range setting

is necessary.

2. Check the LEDs on the hub’s back panel.

When you plug in the hub, it executes a self-test and illuminates all the LEDs for

approximately ten seconds. At the end of the self-test you should see the following

LED pattern:

– The Power LED is ON.

– The Fault LED is OFF.

– Disregard the other LEDs until you have attached the LAN segments to the

network ports.

If the LED pattern is different, refer to “Diagnosing With the LEDs” in chapter 4,

“Troubleshooting”.

2. Plug in the hub and verify its operation

Installation 2-7

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HP 24S Guide de l'utilisateur Page 25