Extreme Networks WM-4T1i WAN Installation And User Manual page 13

Table 1-1 describes the LED behavior on the WAN modules.
Table 1-1: WAN Module LEDs
LED
Status
Diag
WAN port
(1-4)T1/E1
(1)T3
10/100 port
(5,6)T1/E1
(2,3)T3
The slowly blinking LEDs cycle once per second. The rapidly blinking LEDs cycle twice
a second.
WAN Module Installation and User Guide
Color Indicates
Off No power
Amber Module seated in chassis
Green Module powered up
Green (blinking) Power-on Self Test (POST) is running
Off Normal operation
Amber Near-end fault detected (for example, no cable)
Amber (blinking Far-end fault detected
rapidly)
Amber (blinking Physical link present, but no higher-layer link
slowly) established
Green Physical link present, higher-layer link established,
no traffic
Alternating green Physical link present, higher-layer link established,
and amber traffic present
Green (blinking Port disabled or unconfigured
slowly)
Green (blinking Loopback testing mode
rapidly)
Off No link present
Green Link present
Alternating green Traffic present
and amber
Ports and Connectors
1-5