End bracket LEDs

The following illustration shows the TX 4000C end bracket LEDs:

Ethernet LEDs

The TX 4000C board provides two LEDs to indicate the status of each Ethernet interface. The following table describes the functionality of each LED:

LED

Description

ACTIVITY

Indicates the status of the Ethernet link. When the Ethernet link has established link integrity, the LED is on and steady. It also indicates the transmitting and receiving activity on the link. When activity is present on the Ethernet link, the LED flickers.

SPEED

Indicates the data rate of the Ethernet link. When the LED is on, the data rate is 100 Mb. When the LED is off, the data rate is 10 Mb. The LED is used only when a reliable Ethernet connection has been established. (The ACTIVITY LED is on.)


Trunk LEDs

The TX 4000C board has one green indicator (LED) for each trunk on the end bracket of the board. Only LEDs for available trunks are lit. The green LED indicates that proper frame synchronization between the trunk and network has been established: all required framing alignment has been found. This LED blinks if one or more of the following conditions exist:

Status LEDs

The status LEDs indicate the state of the board. The following table describes the function of each LED:

LED label

Description

OK

Illuminated green and steady. The board is functioning as expected.

Standby

Illuminated yellow during board initialization. When the board is successfully initialized, the LED turns off.

Fault

Illuminated red. An error condition exists.


Hot Swap LED

The Hot Swap LED (blue) illuminates when it is safe to remove the TX 4000C board from the system. The LED illuminates under one of the following conditions:

The Hot Swap operation is defined in the CompactPCI Hot Swap Specification PICMG 2.1 R1.0.

Caution:

Always remove or power down the TX 4000C board before removing or replacing the rear I/O transition board.