The TX 4000 board provides LEDs to indicate the status of the trunk interfaces. The location of the LEDs is shown in the following illustration:
The TX 4000 board end bracket has one green LED for each trunk. The trunk LEDs provide the following indications:
|
LED |
Description |
|
Off |
Trunk has not been configured. |
|
Slow blinking green |
Indicates loss of signal. |
|
Fast blinking green |
Indicates loss of frame or loss of signaling multiframe. |
|
Steady green |
Indicates that proper frame synchronization between the trunk and network has been established. All required framing alignment has been found. |