A wire unit to one of the formatters is not correctly connected to the Signal backplane (reference 1, 2, 3 for green on image "Formatter connections").

Check the connections between the formatters and the Signal backplane on the Signal backplane side.

The TI log file will indicate which formatter connection has failed

If problem remains, replace ICP board. See "Removing a board in the card cage".

A wire unit on one of the formatters is not correctly connected (reference 4, 5, 6 for red on image "Formatter connections").

Check the connections between the formatters and the Signal backplane on the formatter side.

If problem remains, replace ICP board. See "Removing a board in the card cage".