Справочник Пользователя для Allied Telesis AT-2973T
AT-2973SX, AT-2973T, and AT-2973T/4 NetExtreme II Family Adapters Installation and User’s Guide
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AT-2973T/4 Adapter Physical Description
The faceplate on the AT-2973T/4 adapter provides four twisted-pair
connectors for attaching the adapter to a compatible link partner. The ports
numbers are not shown on the card. See Figure 6 for the port numbers
and the LED assignments. When the adapter is mounted vertically, the top
LED is the Link LED and the bottom LED is the activity (ACT) LED.
connectors for attaching the adapter to a compatible link partner. The ports
numbers are not shown on the card. See Figure 6 for the port numbers
and the LED assignments. When the adapter is mounted vertically, the top
LED is the Link LED and the bottom LED is the activity (ACT) LED.
Figure 6. AT-2973T/4 Faceplate
For copper-wire Ethernet connections, the state of the network link and
activity is indicated by the LEDs on the RJ-45 connector, as described in
Table 3.
activity is indicated by the LEDs on the RJ-45 connector, as described in
Table 3.
Table 3. Network Link and Activity Indicated by the RJ-45 Port LEDs
Port LED
LED Appearance
Network State
Link LED
Off
No link (cable disconnected)
Continuously
illuminated
illuminated
Link
Activity LED
Off
No network activity
Blinking
Network activity
1862
T
LNK
AC
T
AT
I
LINK ACT
PORT 1
PORT 2
PORT 3
PORT 4