Allied Telesis AT-x510DP-52GTX - Manual (Page 26)

Chapter 1: Overview
26
LEDs for the
SFP+ Slots
The LEDs for the SFP+ slots are located between the slots, as shown in
Figure 5. 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 5. SFP+ Slot LEDs
The LEDs are described in Table 3.
Duplex
Mode
LED Green A port is operating in full duplex mode.
Amber A port is operating in half-duplex mode at 10
or 100 Mbps. (Half-duplex mode does not
apply to 1000 Mbps operation.)
Flashing
Amber Collisions are occurring on a port operating
at 10 or 100 Mbps.
Table 2. LEDs on the 10/100/1000Base-T Ports (Continued)
LED State Description
SFP+ Slot LEDs