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How to Connect an Alarm System To the Telephone Line

 

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In order to allow the control panel to communicate with the outside world (Central Monitoring, Pagers, etc.) it is necessary to connect the alarm to the phone line. However, alarm systems require a special type of connection to the phones , a :8 position jack or RJ-31X jack.

The telephone line from the street uses 2 wires, usually red and green. The phones in the house or buss. have 2 or more wires connected to the phone company line. The place they are connected is called different things in different areas -- demarcation point, phone block or protector to name a few.

how to connect phone line to an alarm panel

  • Run a 4-conductor wire (22/4 is fine) from the alarm system master control panel (the BOX) to the phone common connection point (the PROTECTOR). The PROTECTOR is where the lines first enter the house and all the house phone jacks are wired to it. Note which terminal on the protector has the RED wire from the house phones and which has the GREEN wire. Disconnect them. The phone will go dead.
  • Connect the RED wire from the BOX to the RED wire from the street (the telco line, that is).
  • Connect the GREEN wire from the BOX to the GREEN wire from the street.
  • Splice the YELLOW wire from the BOX to the RED wire from the house phone jacks.
  • Splice the BLACK wire from the BOX to the GREEN wire from the house phone jacks.

Connect the 4-conductor wire to the RJ-31X Jack as follows:

  • Connect the RED wire to the screw terminal with a RED wire under it.
  • Connect the GREEN wire to the screw terminal with a GREEN wire under it.
  • Connect the YELLOW wire to the screw terminal with a GREY wire under it.
  • Connect the BLACK wire to the screw terminal with a BROWN wire under it.

You must connect the grey modular cord to the alarm and plug it into the RJ31X Jack. Your alarm system has a schematic drawing of the proper position for the RED, GREEN, BROWN and GREY wires from the cord. 

NOTE:  If your wires are twisted pair (Category 3 or Category 5), the first line will be colored white with a blue stripe and blue with a white stripe. If you have this type of phone wiring, simply substitute "white wire with blue stripe" for >green wire" and "blue wire with white stripe" for "red wire" . Also substitute the white wire with an orange stripe for black wire and orange with a white stripe for yellow wire.

 

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Information in this document is subject to change without notice.
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UPDATE 30-Mar-2010


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