The universal speaker unit can be used to install the 2 WIRE audio system in new or refurbished systems, where special pushbutton panels are present or required preset for a traditional type speaker module (e.g. 2659N).

• Where more than 8 call pushbuttons are required, one 346992 must be added for every 8 pushbuttons - sold separately
• For the control of an electric door lock, an actuator appropriately configured must be used. 346230/346260 - sold separately
• Microphone sensitivity adjustment and loudspeaker volume using dedicated potentiometers
• The microphone of the speaker unit may be disconnected from the device and positioned at a distance of 15 cm (max.)