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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