Electrical Installation - 2N Helios User And Service Manual

Label Material and Printing
Every Helios delivery includes a sheet of transparent foil that can be easily
printed, with a laser printer. Cut the printed foil into pieces and insert the labels into the
name plates. Do not use paper to avoid water logging.
Make sure that the text does not cover up the red arrows printed on the name
plate, we recommend you to print the foil using a template (MS Word), available at
www.2n.cz .
Single surface button

7. Electrical Installation

Compatibility
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 Helios simply using LINE terminals. The advantage is that the Helios
requires no power supply because all power is fed from the telephone line – except for
the button backlight and electric lock, if connected. Nevertheless, Helios can 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:
1. Terminal board
2. Left button connector
3. Display connector
4. Voice memory
5. One-chip Handsfree telephone
6. Switch 2 connector
7. Keypad backlight connector
8. Connector for non-standard functions
9. Microphone connector
10. Keypad connector
Name 01
Name 02
Name 03
11.
12.
13.
14.
15.
16.
17.
18.
19.
21
Horizontally split button
Name 01
Name 04
Name 02
Name 05
Name 03
Name 06
Extension unit connector
Series number
Main microprocessor
Configuration jumper block
Right connector
Jumpers
Camera connector
Camera setting jumpers
Loudspeaker connector and panel
grounding