Each QY-12AC interphone extension has a wall-mounted, easy to wall install, Using the screws fix the wall-mounted on the wall, Aligning the wall-mounted on interphone extension appropriate slot, and Pressing gently down the interphone extension to fix.

OPERATION INSTRUCTION 1. Unlocking and intercom function The visitor press the "call" button on the door station, all the indoor phone will ring, Arbitrarily an extension picked up the receiver can do a dual-way intercom, more than extensions can do Multi-intercom , make sure the visitors, pressing extension No. 1 button unlock. (indoor phone group calls switch "P" must be set "open" state)

2. Internal intercom function Extension: 1, 2, 3, 4, 5, 6, 7, 8 ,9, 10, 11, 12 can call and do an intercom each other, When you pick up the receiver to press extension number ,the other party answer. It can do dual-way intercom.

3. PG Broadcast function. Picking up the receiver, Pressing " pg "key long time, It can do broadcast function with all the extension. (The group calling switch "p"on the back of extension must be set at "open" state)

4. Group calling functions Picking up the receiver and press the groupcall number on the extension, when the other party answer , It can do Multi-way intercom.

5. Amplifying function Each extension has a inbuilt audio to enlarge circuit, It can connect a loudspeaker from outside.(Many extensions connect with high- pitched loudspeakers in the same environmental area, the calling maybe Interference)

SPECIFICATION

Power sourceDC 12V / 1A
Current consumption: 100mA
Effective distance: 100M/0.5mm ; 300M/0.75mm; 500M/1.0mm
Wiring: 4common wires