The newest OCAB modules have a new LED behaviour. With this new behaviour the system provides a much better view on the operating and start up behaviour of the OCAB. A new red LED is added and together with the green one you will be able to see what happens during start up of the OCAB and during operation.
Here you can find a description of the LED status of the 2 types of boards.
NEW variant with Red+Green led:
OLD variant with Yellow+Green led: