Backup Kitchen Display System Controller

The Backup KDS controller is an optional redundancy component that provides resilience for the KDS clients. Whenever the system detects that the primary KDS controller is not functioning, the backup KDS controller takes over communication to the KDS clients.

When the primary KDS controller is available again, the operator must manually change the system to the primary.

While the system is in a non-fault state (the primary controller is functioning), the backup KDS controller receives order information from the primary KDS controller. If the system fails over to the backup KDS controller, the POS clients will send messages directly to the backup until the system is manually switched back to the primary controller. The Backup KDS Controller and KDS Controller services cannot exist on the same hardware.