Number Description
8 Switch output
9 Additional switch
10 To keypad
11 Servicing connector
12
Power amplifier bypass: Amplifier ON OFF (bypassed)
Default = ON
13 Power amplifier volume adjustment
14 DC/DC converter – equipped only on the keypad version
Compatibility
2N Helios Force/Safety
®
is designed for conventional, analogue telephone lines and
works regardless of polarity and line parameters (Refer to the Technical Parameters)
and uses tone (DTMF) dialling to be programmed. Normally, it is connected to a PBX
line. However, it can also be connected to CO line or the GSM gateway, providing a
wireless connectivity.
Connection to Telephone Line
Connect simply using LINE terminals – RJ connector or 2N Helios Force/Safety
®
terminal block. The advantage is that requires no power 2N Helios Force/Safety
®
supply because all power is fed from the telephone line – except for the amplifier,
button backlight and electric lock, if connected. Nevertheless, 2N Helios Force/Safety
®
can work without these circuits too (amplifier is bypassed in this case). 2N Helios
®
sends an acoustic signal on having been connected to a line (or after Force/Safety
having been disconnected from the line for a defined period of time).
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