Sentinel 4

AST Sentinel 4 door entry systems

Sentinel 4 is a microprocessor controlled system with both functional and digital variations available. Stainless steel or brass panels, flush or surface mounted, call entryphones and/ or apartment stations, working on a 4 wire common bus network (ideal for system replacements utilizing existing cabling)

Both functional (button per flat) and digital (dial in flat number) format panels have an L.E.D display to indicate a flat is calling, that the call has been answered and that the door has been released.

A trades button on the panel can be used to admit certain callers at restricted time periods or to offer a coded access to be used.

Main Features

	Unlimited number of call panels
	over 1000 phones and/or apartment stations on any one system
	up to 8 digit user programmable access code on all panels
	in-built CCTV camera and/or proximity reader on any panel
	intelligent line isolation option, which disconnects faults as they occur and automatically reconnects after the fault has been rectified.
	mix and match entryphones and apartment stations
	Infra-red remote control option on apartment stations
	single button call button call panel, which can be 'stand alone' or interface into any main sentinel 4 system
	all systems offer fully private speech and lock release facility
	meets most local authority performance specifications