The RS-450 is a substation to be connected to the N-8400RS 4-Wire Substation Interface Unit. Pressing a call button will initiate a call to a preprogrammed master station, enabling a conversation ; Provides half-duplex communication. Hairline brushed stainless steel faceplate. Built-in electret condenser microphone. Connects to N-8400RS using two twisted pair cable. Indoor type.

• The RS-450 is a substation to be connected to the N-8400RS 4-Wire Substation Interface Unit. Pressing a call button will initiate a call to a preprogrammed master station, enabling a conversation