Allied Telesis AT-GS900/8PS manual Describes the LEDs for the SFP slots SFP Slot LEDs

Chapter 1: Overview

Table 5 describes the LEDs for the SFP slots.

Table 5. SFP Slot LEDs

LED	State	Description
	Solid Green	The SFP transceiver has established a link
		with a network device, but is not transmitting
L/A (link/		or receiving network packets.
	Blinking	The SFP transceiver is transmitting or
activity)
	Green	receiving network packets.
		The port on the SFP transceiver has not
	Off	established a link with an end-node or the
		transceiver slot is empty.

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