Automatic Mdix Detection; Leds; Figure 4: Leds For The Twisted Pair Ports On The At-X220-52Gt Switch; Table 2: Leds For The Twisted Pair Ports On The At-X220-52Gt Switch - Allied Telesis AlliedWare Plus x220 Series Installation Manual

Automatic MDIX
Detection

LEDs

The 10/100/1000Mbps twisted-pair ports are IEEE 802.3ab compliant.
They feature automatic MDIX detection when operating at 10 or 100Mbps.
(Automatic MDIX detection does not apply to 1000Mbps.) The switch
automatically configures the ports to MDI or MDI-X depending on the
wiring configurations of the end nodes.
Ports connected to network devices that do not support automatic MDIX
detection default to MDIX.
You can disable automatic MDIX detection on the individual ports and
configure the MDI/MDI-X settings manually with the POLARITY command.
Refer to Table 18 on page 94 for the port pinouts of the twisted pair ports.
The twisted pair ports on the AT-x220-52GT Switch have two LEDs. The
LEDs are shown in Figure 4 on page 23.
Speed/Activity
Speed/Activity
Figure 4. LEDs for the Twisted Pair Ports on the AT-x220-52GT Switch
The states of the port LEDs are described in Table 2.
Table 2. LEDS for the Twisted Pair Ports on the AT-x220-52GT Switch
State
Speed/Activity LED
Solid Green
Flashing Green
Solid Amber
Duplex Mode
Duplex Mode
Description
The port has established a 1Gbps link to a
network device.
The port is transmitting or receiving
packets at 1Gbps.
The port has established a 10 or 100Mbps
link to a network device.
x220 Series Installation Guide
23