Digital audio – full duplex or speech steered (remote dependent) One master and multiple slaves can be networked on One system (panels are configured on installation). surface mountable or optional flush mounting with bezel , Lockable glazed door Remote units are connected to the master Control Panel in a loop configuration, using fire rated enhanced Four-core cable. (OmniCare cabling & networking) Fully monitored and battery backed (separate box to house batteries supplied with panels larger than 32-way). Addressable via the remote unit Choice of remote units, including disabled refuge, advance disabled refuge, fire telephone, combined unit and disabled toilet alarm.