The combination of IDA4SW/S and IDA4SU allows to connect up to 8 zones to the same amplifier. The zone selection will then happen trough the automatic switching of the relevant 100 V speaker line to the corresponding 100 V amplifier output.

Each line and amplifier will be constantly monitored according EN 60849/BS 5839 with no background music interruption.
In the ‘’Dual audio channel’’ mode, when a microphone or message call is made in a zone or group of zone, the music will not be interrupted in the zones not selected for the call.
In the ‘’Single audio channel’’ mode, in case of a selective call, the music will be interrupted only in the zones connected to the IDA4SU receiving the call.
Each IDA4SU, and the 8 zones connected to it, could receive a different music source to a predefined level.

	Data Sheet	Software 1.0.x	Change Log 1.0.x
IDA4SW IDA4SWs
		Software 1.2.x (require IDA4SU v2)	Change Log 1.2.x