Videx 512D Extension speaker

This extension sounder is for use in conjunction with the videx VX2200 digital systems and has an 8 way Dip-switch for programming the address of the device. The sounder enables a higher volume to alert of an incoming call when the intercom call button is placed. The extension sounder is for 2 wire BUS system in a wall mountable white ABS plastic box.  Up to 3 units can be addressed with the same number. The call tone is different according to the origin of the call (Main entrance call or local door bell). Volume is adjustable using a 2 position jumper.