Allied Telesis AT-AR3050S, Installation Manual

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Chapter 1: Overview
28
Figure 11. LEDs for the 10/100/1000Base-T Ports
The LEDs are described in Table 7.
Table 7. LEDs for the Twisted Pair LAN Ports
LED State Description
Link/
Activity
LED
Solid Green A port has established a 1000 Mbps link to
a network device.
Blinking
Green A port is transmitting or receiving data at
1000 Mbps.
Solid Yellow A port has established a 10 or 100 Mbps
link to a network device.
Blinking
Yellow A port is transmitting or receiving data at 10
or 100 Mbps.
Off A port has not established a link with
another network device.
Duplex/
Collision
Mode
LED Solid Green A port is operating in full duplex mode.
Solid Yellow A port is operating in half-duplex mode at 10
or 100 Mbps. (Half-duplex mode does not
apply to 1000 Mbps operation.)
Blinking
Yellow Collisions are occurring on a port operating
at 10 or 100 Mbps.
1 2 3 4 5 6 7 8
AR3050S
1000 LINK ACT 100 LINK ACT
AR3050S
Duplex/Collision LED
Link/Activity LED
Link/Activity LED Duplex/Collision LED