The Fireye YZ300 Interlock Annunciator Module provides increased interlock supervision capability of the BurnerLogix System. All interlock messages can be programmed using the YZ300P. The Interlock Annunciator Module connects to any YB110 or ZB110 BurnerLogix chassis/amplifier by means of a cable. (P/N ED580-4, ED580-8). A separate wiring base is required