Sfp Leds; Figure 5: Fault Led On The At-X220-28Gs Switch; Table 2. Fault Led Functional Descriptions - Allied Telesis AT-x220-28GS Installation Manual

Figure 5 shows the location of the Fault LED.
Figure 5. Fault LED on the AT-x220-28GS Switch
Table 2 describes the functions of the Fault LED.

Table 2. Fault LED functional descriptions

LED
Fault

SFP LEDs

The AT-x220-28GS switch has a total of 28 SFP ports. Each SFP port has
an SFP Link/Speed/Activity LED on the front panel. See Figure 6.
The SFP Link/Speed/Activity LEDs indicate the activity status for each
SFP slot. Each SFP slot has ONE bi-color LED:


Fault LED
State
If the POWER LED is on, the switch is receiving
Off
AC input power and is operating normally
Red Indicates system warning such as a high
flashing temperature alarm
The left LED corresponds to the upper SFP port
The right LED corresponds to the lower SFP port
Note
All of the port LEDs are OFF when the switch is operating in
ecofriendly mode. See "Ecofriendly button" on page 14 for more
information.
AT-x220-28GS Switch Installation Guide
27
FAULT
POWER
USB
ON
CONSOLE
ERR
LASER PRODUCT
28
Description
ACT
CLASS 1
11