.
Table 7. SFP Slot LED Functional Descriptions
LED
State
Off
On
Link/Activity
Flashing
Green
AT-GS908M, AT-GS916M, and AT-GS924M Switches Installation Guide
Description
The port has not established a link with a
network device.
The port has established a link with a
network device.
The port is transmitting or receiving
network packets.
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