Catalog > Consumer Electronics > Security & Alarms > Access Control > Intercom Systems 20 Way School Intercom Master Station 20 Way School Intercom Master Station M20X20 20 Way School Intercom Master Station with Power Supply to be used with Sub Station RSPXCX190X190 15,612.30 ZAR inc for 1 Each 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features The M20 range of school intercoms is a cost effective basic intercom, where only one Master Station and up to a maximum of 60 class room Sub Stations are required. The range includes a 6-way M630, 12-way M1230, 20-way M20x20, 40-way M20x40 and 60-way M20x60. The system consists of the Master Station with all the selection switches. A power supply box which also contains the main audio/control PCB which is connected to the master via a 3 meter cable. A Termination Box with plug in terminals for all the connections to the Sub Station, it is also connected to the master via a 3 meter cable. The system requires a 220/240vac power point. A battery backup is available for the system. The M630 and M1230 do not have a Termination Box, the connection to the Sub Station can be made with connector blocks. Downloads User Manual - M20X20 PDF File 130.98 KB