INDUSTRIAL SOUND ACCESSORY Microprocessed remote paging desk with 8-zone selector for MX-880 controller. We can increase the number of zones with the MX-880E expander modules. Unidirectional electret microphone. impedance 600Ohm balanced. Frequency range 50-18KHz. 8-zone selector and general call with led to indicate activation. Led bar to visualize the audio output level. Microphone and chime volume control. Chime switch 2-3-4 tones. RJ45 connector. RS485 communication up to 50 meters with internal power supply and more than 50m. with external power. Power through its RJ45 connector or by external 24VDC power supply (includes power supply). black colour. Dimensions: 180 x 145 x 58mm.