Allied Telesis IA Series Installation Manual page 21

Table 3. The AT-IA810M LEDs (Continued)
LED
L/A
(Link/Activity) for
the fiber ports
State
Off The port has not established a link,
or the eco-friendly feature is on.
Solid green The port has established a link.
Flashing green The port is receiving or transmitting
frames.
IA Series Ehternet Switches Installation Guide
Description
17