Allied-telesis x900 Series Switch Manual de usuario descargar pdf (Pagina 13)

Installation and Safety Guide

Checking LEDs

Table 1 below describes how LEDs on the switch report faults and operational

activities.

Table 2 on page 14 describes how LEDs on power supply units and fan-only

modules report faults and operational activities.

LEDs for Ethernet ports and Small Form Factor Pluggable (SFP) ports are

described in the Hardware Reference.

Table 1: System LEDs

LED State Description

PSU 1 Green PSU 1 is installed and supplying power to the switch.

The voltage output is within specification.

Red

PSU 1 is installed in the switch and has exceeded its

recommended temperature threshold of 75º C

(167º F), or the fan has failed.

A FOM is installed in the switch and has failed.

The bay is empty. Applies to AT-8948, AT-9924T/4SP,

and AT-9924Ts switches since they require a FOM

when only one PSU is installed.

Off A FOM is installed and operating at an acceptable speed.

For AT-9924T and x900-48FE switches, a blanking panel

is installed.

PSU 2 Green PSU 2 is installed and supplying power to the switch.

The voltage output is within specification.

Red PSU 2 is installed in the switch and has exceeded its

recommended temperature threshold of 75º C

(167º F), or the fan has failed.

A FOM is installed in the switch and has failed.

The bay is empty. Applies to AT-8948, AT-9924T/4SP,

and AT-9924Ts switches since they require a FOM

when only one PSU is installed.

Off A FOM is installed and operating at an acceptable speed.

For x900-48FE switches, a blanking panel is installed.

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Allied-telesis x900 Series Switch Manual de usuario Pagina 13