# Status indicator LEDs

The CG 6565E board provides LEDS to indicate the status of the trunk, Ethernet interfaces, and the board. The following illustration shows the location of the LEDs on the CG 6565E board variant with an MD1 Mini RJ-21 interface:

The following illustration shows the location of the LEDs on the CG 6565E board variant with MD1 RJ-45 interfaces:

## Trunk status LEDs

The CG 6565E board provides one status LED for each trunk interface:

Trunk status LED | Description
Red | Loss of frame, loss of signal, or bit error rate.
Yellow | Remote loss of frame, or remote loss of signaling multiframe.
Not lit | Trunk is not configured, or the trunk is not in alarm.

No trunk LEDs are illuminated if the NetworkInterface.T1E1[x].Type keyword is set to NONE.

For more specific diagnostic information about the current state of trunk synchronization, run the NaturalAccess trunk monitoring utility trunkmon. Refer to the Dialogic® NaturalAccess™ OAM System Developer’s Manual for more information about trunkmon.

## Ethernet LEDs

The CG 6565E board provides two LEDs for each Ethernet interface on the end bracket of the board:

Ethernet LED | Description
--- | ---
SPEED | Data rate of the Ethernet link.
Data Rate | LED
10 Mbit/s | Off
100 Mbit/s | On
1000 Mbit/s | Blinking
This LED is used only when a reliable Ethernet connection has been established. The ACTIVITY LED is on.
ACTIVITY | There is activity on the Ethernet link. When the Ethernet has established link integrity, and there is transmit or receive activity on the link, the LED flickers on.

## Board status LEDs

The CG 6565E board provides a set of board status LEDs:

Board status LED | Description
Green only, blinking slowly | Board booted successfully and is running.
Red only | Fatal software error.
Red and yellow | Board is resetting.
Red, yellow, and green | Board resets are released.
Yellow and green | Boot loader has started.
Not lit | Power is off or the hardware is starting up.