Allied Telesis AT-SBx31CFC960 - Manual (Page 44)

Chapter 2: Overview of the Ethernet Line Cards
44
Figure 20. Port LEDs on the AT-SBx31GS24 SFP Line Card
Table 9. Port LEDs on the AT-SBx31GS24 SFP Line Card
LED State Description
Solid Green The SFP transceiver in the slot has established a
link to a network device.
Blinking Green The SFP transceiver is transmitting and/or
receiving data.
Off This LED state can result from the following
conditions:
 The transceiver slot is empty.
 The SFP transceiver has not established a
link to a network device.
 The LEDs on the Ethernet line cards are
turned off. To turn on the LEDs, use the
eco-friendly button.