2.3 Electric Installation
This subsection describes how to connect to your PBX and 2N Helios Force/Safety
®
how to connect supply voltage and the electric lock.
PCB Connectors
2N Helios Force/Safety
®
Connectors, PCB Version 3
Description of Connectors
Number Description
1 Loudspeaker connector
2 To pushbuttons
3
Microphone sensitivity attenuator: high (normal) low
4 Microphone connector
5 Line connection: RJ-12 or screw terminals
6 DC power 12 V for power amplifier and for backlight
7 Protecting ground
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