An EVCS is a fixed, secure, bi-directional, full duplex voice communication system to assist firefighters during emergencies in high rise buildings or large sites where radio communication cannot be guaranteed to work due to interference from the fire plasma.

The EVX-228N range of master stations is specifically designed where a repeater or 2nd master station is specified. They provide a simple solution with integral networking capability. They can provide a small network of 2 panels with lines split as 8-0, 6-2, or 4-4 ratio. Note maximum of 8 lines total.

The full range of EVX outstations are compatible and include Type A outstations, Type B Outstations, Type C outstations and jack points for use in far and middle east applications.

Lines auto identify by flashing Red for EVCS calls, Blue for assist calls or flashing Green for connected calls as detailed in BS 5839-9:2021.

The Assist Call range of emergency assistance alarms is fully compatible. It has become very popular to add these devices as an integrated system. This has several benefits namely:- fault monitored wiring, fully line powered (No mains supply), battery back-up via the master station.

BS 8300 requires that audible and visual feedback should be provided to indicate that, when the alarm has been operated, the emergency assistance call has been acknowledged and actioned. Assist Call meets this requirement and will return to alarm if not reset within two minutes.

The EVX-228N range has built in networking, so can form part of EVX network on campus style sites. A Touchscreen Master Station (EVX-TMS-W-8) is required as the site master. Note the EVX-228N master can only answer local calls and cannot be used as a site master.