Allied Telesis AT-9000/24, Installation Manual, Page: 20 / 78

Chapter 1: Overview
20
LEDs
The LEDs on the front panel display the system and port status
information. Each port has two LEDs as shown in Figure 3.
Figure 3. AT-9000/24 System and Port LEDs
Table 2 describes the AT-9000/24 system LEDs.
Table 3 describes the LEDs for the 10/100/1000Base-T ports.
Table 2. System LEDs
LED State Description
POWER Off The switch is not receiving power.
On The switch is receiving power.
Table 3. 10/100/1000Base-T Port LEDs
LED State Description
SPEED On The port is operating at 1000 Mbps.
Off The port is operating at 10/100 Mbps or no
link is established.
LINK/ACT Off The port has not established a link with an
end node.
Blinking
Green The port is transmitting or receiving data.
Green A valid link has been established on the port.
795
AT-9000/24
24 Port Gigabit Ethernet Switch
1 3 5 7 9 11 13 15 17 19 21R 23R
2 4 6 8 10 12 14 16 18 20 22R 24R POWER
21 22
23 24
SFP
LINK ACT
1000 10/100
PORT ACTIVITY