Videx Speaker unit for audio & Video door entry systems "4+1"

DESCRIPTION
The Art. 136 speaker unit is an intelligent device with a built-in microprocessor to control the functions of a system.
This speaker unit offers ease of installation (on audio door entry systems with multiple entrances there are no audio entrance
Art. 502N switchers required) and assists the user by providing visual and acoustic reassurance signals during the process of a call
(call, conversation, door open etc).
The enclosed speaker unit circuitry includes:
a. The microprocessor for controlling all functions;
b. The transmitting amplifier with condenser microphone and volume control;
c. The receiving amplifier and volume control;
d. 3 LEDs for Speak, Busy and Door Open visual indication;
e. The dry contact lock release relay to enable the electric lock or gate;
f. The modulated tone generator for calling apartments;
g. One 4 way DIP-SWITCH and a jumper to program the unit

TECHNICAL SPECIFICATION

Power Supply: 12Vdc
Power consumption: Stand-by: 25mA During a call: 150mA During a conversation: 70mA
Working Temperature: -10 +50 °C