2N Helios Vario, Руководство по установке

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2.3 Electrical Installation
Compatibility
2N Helios
®
is designed for conventional, analogue telephone lines and works
regardless of polarity and line parameters.(Refer to the Technical Parameters) and uses
tone (DTMF) or pulse dialling to be programmed. Normally, it is connected to a PBX line
however It can also be connected to an analogue line or the GSM interface providing a
wireless installation.
Connection to Telephone Line
Connect simply using LINE terminals. The advantage is that r 2N Helios
®
2N Helios
®
equires no power supply because all power is fed from the telephone line – except for
the button backlight and electric lock, if connected. Nevertheless,
can 2N Helios
®
work without these circuits too and sends an acoustic signal on having been connected
to a line (or after having been disconnected from the line for a defined period of time).
Printed Circuit Board (PCB) Description
Explanatory notes to the figure:
Terminal board
Left button connector
Display connector (for version 10 only)
Voice memory
One-chip Hands-Free telephone
Switch 2 connector
Keypad backlight connector
Connector for non-standard functions
Microphone connector
Keypad connector
Extension unit connector
Serial number
Main microprocessor
Configuration jumper block
Right connector
Jumpers
Camera connector
Camera setting jumpers
Loudspeaker connector and panel grounding