MultiCam Boards Documentation > GRABLINK series Documentation > GRABLINK Base Handbook > System Integration > LED Indicators

LED Indicators

There are two LED indicators on the Grablink DualBase bracket. The LED A is related to acquisition channel A whereas LED B is related to acquisition channel B.

The LED indicators are built with green LEDs mounted on a right-angled holder that fits beside the bracket.

There are three possible states for the LED indicator: OFF, ON, BLINKING.

Various states, descriptions and possible causes of the LED indicators

LED indicator state

Description

Possible causes

 

 

 

OFF

 

 

The board is not working.

The board is not powered.

The MultiCam driver is not loaded.

The on-board FPGA is not yet configured.

The board is defective.

No Camera Link clock is received from the camera.

The camera is not connected.

The camera is not powered.

The camera is not initialized yet.

 

ON

Camera Link clock is received from the camera but both the LVAL and the FVAL signals are missing.

The camera is not initialized yet.

In case of asynchronous reset camera: the frame grabber doesn't correctly deliver the Reset/Expose control signals.

Camera Link clock is received from the camera. There is activity on LVAL or FVAL signals but the board is not acquiring data.

The MultiCam channel is not in the READY or the ACTIVE state.

The trigger conditions are not satisfied.

BLINKING

The board is acquiring data.

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