Allied Telesis AT-x220-28GS, Руководство по установке

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Chapter 1: Overview
10
LEDs
This section describes the four types of LEDs on the AT-x220-28GS
switch:

“Power and Fault LEDs” on page 10

“SFP LEDs” on page 11

“USB LED” on page 13
Power and Fault
LEDs
The Power LED reports the status of AC power and is located on the
Management Panel of the switches beside the console port. See Figure 4.
Note
All port LEDs are OFF when the switch is operating in the low power
mode. To toggle on the LEDs, use the ecofriendly button. See
“Ecofriendly button” on page 14 for more information.
Figure 4. Power LED on the AT-x220-28GS Switch
27
28
FAULT
POWER
USB
ON ACT
ERR
CLASS 1
LASER PRODUCT
CONSOLE
Power LED
Table 1 describes the Power LED for the AT-x220-28GS switch.
Table 1. Power LED functional descriptions
LED State
Description
Power
Off
Indicates either the switch is not receiving AC
power or the AC input power is operating outside
the normal range
Steady
green
The switch is receiving AC input power