User guide

AT-2973SX and AT-2973T NetExtreme II Family Adapters Installation and User’s Guide
21
Physical Descriptions
This section provides descriptions of the AT-2973SX and AT-2973T
faceplates and LEDs.
AT-2973SX
Adapter Physical
Description
The faceplate on the AT-2973SX adapter provides two fiber optic
connectors for attaching the adapter to a compatible link partner. See
Figure 3 for an illustration of the adapter’s faceplate.
The AT-2973SX adapter has two fiber ports and two LEDs per port, as
shown in Figure 3 and described in Table 1. The state of the network link
and activity is indicated by a single LED located adjacent to the port
connector.
Figure 3. AT-2973SX Faceplate
For fiber optic Ethernet connections, see Table 1.
Table 1. 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
Link
Activity LED Off No network activity
Blinking No network activity
1699
100
ACT LNK