2N Helios User Manual
Also see for Helios: User and service manual
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Contents
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252.3 Electrical InstallationCompatibility2N® Helios is designed for conventional, analogue telephone lines and worksregardless of polarity and line parameters.(Refer to the Technical Parameters) anduses tone (DTMF) or pulse dialling to be programmed. Normally, it is connected to aPBX line however It can also be connected to an analogue line or the GSM interfaceproviding a wireless installation.Connection to Telephone LineConnect 2N® Helios simply using LINE terminals. The advantage is that 2N® Heliosrequires no power supply because all power is fed from the telephone line – except forthe button backlight and electric lock, if connected. Nevertheless, 2N® Helios canwork without these circuits too and sends an acoustic signal on having been connectedto a line (or after having been disconnected from the line for a defined period of time).Printed Circuit Board (PCB) DescriptionExplanatory notes to the figure:1. Terminal board2. Left button connector3. Display connector (for version 10 only)4. Voice memory5. One-chip Hands-Free telephone6. Switch 2 connector7. Keypad backlight connector8. Connector for non-standard functions9. Microphone connector10. Keypad connector11. Extension unit connector12. Serial number13. Main microprocessor14. Configuration jumper block15. Right connector16. Jumpers17. Camera connector18. Camera setting jumpers19. Loudspeaker connector and panel grounding |
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