Manual

Chapter 1: Overview
36
LEDs for the SFP
Slots
The LEDs for the SFP slots on the AT-x510-28GSX Switch are located
between the slots, as shown in Figure 9. Each SFP slot has one LED. The
left-hand LED is for the top slot and the right-hand LED is for the bottom
slot.
Figure 8. SFP Slot LEDs on the AT-x510-28GSX Switch
PoE Green The switch is detecting a powered device
(PD) on the port and is delivering power to
it.
Solid Amber The switch has shutdown PoE+ on the port
because of a fault condition.
Flashing
Amber
The switch is detecting a PD on the port but
is not delivering power to it because the
maximum power budget has been reached.
Off This LED state can result from the following
conditions:
 The port is not connected to a PD.
 The PD is powered off.
 The port is disabled in the
management software.
 PoE is disabled on the port.
 The LEDs on the Ethernet line cards
are turned off. To turn on the LEDs,
use the eco-friendly button.
Table 7. LEDs on the 10/100/1000Base-T Ports on the AT-x510-28GPX
and AT-x510-52GPX Switches (Continued)
LED State Description
SFP Slot LEDs