Silent Knight SK-5208 Fire Alarm Control Panel - Certified Repaired - One Year Warranty imported eBay the 270 Series provides a

the 270 Series provides a single action

Audible notification appliance (horn):

Digital messages generated by the Audio Source Unit (ASU) and live paging messages are multiplexed into eight separate channels transmitted over fiber optic cable or a single twisted pair of wires

System performance is identical with either single or multi mode fiber

Silent Knight SK-5208 Fire Alarm Control Panel - Certified Repaired - One Year Warranty imported eBay the 270 Series provides aUnit was sent for professional certified repair of AC power. Verification includes NAC Supervisor, NAC Activation, Ground test, Zone Activations, Zone Supervisions, Battery and Charge test, PC Communications, etc. One year warranty included with purchase.