This can be used to play your local legal ID (and cover the network ID). During non-live events you can use this relay for time sync as it will fire every hour at 59:50.
3
Local Cutaway
This relay is to cue your automation system to cutaway from the network and play local content.
4
Program Start
This relay is to signal that the scheduled program is starting.
5
Program Stop
This relay is to signal that the scheduled program is over.