Leds; Power And Fault Leds; Figure 4: Power Led On The At-X220-28Gs Switch; Table 1. Power Led Functional Descriptions - Allied Telesis AT-x220-28GS Installation Manual

Chapter 1: Overview

LEDs

Power and Fault
LEDs
10
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

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
Power LED
Table 1 describes the Power LED for the AT-x220-28GS switch.

Table 1. Power LED functional descriptions

LED State
Off
Power
Steady
green
27
FAULT
POWER
USB
ON
CONSOLE
ERR
LASER PRODUCT
28
Description
Indicates either the switch is not receiving AC
power or the AC input power is operating outside
the normal range
The switch is receiving AC input power
ACT
CLASS 1