Synchronization mode when connecting two or more devices together.
Neither 'Sync In' or 'Sync Out' connections are used.
The 'Sync Out' jack is enabled and synchronization data it driven out the connected wire.
The 'Sync In' jack is used for synchronization and 'Sync Out' is driven for the next device in the chain.
'Sync Out' is a mirror of 'Sync In' for this mode.