There are times when a conventional desk needs to trigger an automated desk or vice versa. The most common type of console triggering automation is MIDI Show Control (MSC). A device ID is required for each device in a MSC system. If you want your automated console to trigger your conventional console, the automated desk must send out MSC messages for a specific device ID and the conventional desk must be configured to receive messages for the same device ID. If they do not match, then the triggering will not occur.
—Brad Schiller, from Feeding the Machines, PLSN, Feb. 2008
