Table 4. Sfp Port Leds - Allied Telesis AT-9000/24 Installation Manual

Table 4 describes the LEDs for the SFP ports.
LED State
LINK/ACT Off
Blinking
Green
Green
AT-9000/24 Layer 2 Gigabit Ethernet Switch Installation Guide

Table 4. SFP Port LEDs

Description
The port has not established a link with an
end node.
The port is transmitting or receiving data.
A valid link has been established on the port.
21