How do I wire my TG-1 with a Cat5 Cable?

The Telguard TG1-Express requires a connection to DC power and to the Tip and Ring terminals of the alarm panel. When the alarm panel believes it is dialing the central station, it is actually transmitting the signal to the TG1, which in turn sends the signal wirelessly to the station.


The TG1-Express is usually used when a panel has been communicating to a monitoring station through a POTS (Plain Old Telephone Service) line, but for some reason the phone line is being removed. Rather than replace the entire control panel, a potentially expensive option, the user can add a Telguard TG1-Express in place of the old telephone connection.

To wire the TG1-Express using a Cat5 cable and RJ45 connector, follow these steps:

  1. Power Down the Panel. When connecting the TG-1 Express, make sure the panel is completely powered down by unplugging the transformer and disconnecting the panel's backup battery. Remove the TG-1’s cover using a small flathead screwdriver. Push in the 2 tabs located on the bottom of the TG-1 and then lift up. If a power supply will be used to power the TG1-Express, power it down in a similar fashion by unplugging the transformer, and unplugging the backup battery.
  2. Plug in the Cable. Plug the Cat5 RJ45 connector into the RJ45 port on the TG1-Express.
  3. Connect the Wires. Connect the Blue wire from the Cat5 cable to the Ring terminal located on the alarm panel's Incoming Phone Line terminal. This is usually indicated as a Red wire. Connect the Blu/Whi wire to the Tip terminal on the Incoming Phone Line terminal. This is usually indicated as a Green wire. Connect the Bro/Whi wire from the Cat5 cable to the Positive terminal for auxiliary power on the alarm panel, or to a DC power supply. Connect the Green wire from the Cat5 to the Negative terminal for auxiliary power, or to a DC power supply. If using a power supply, be sure there is a common negative between the power supply and the panel. The TG1-Express draws 115mA of current at 12 Volts DC when transmitting.


Once the wiring has been completed, plug in the alarm panel's transformer and reconnect the backup battery. If a power supply is being used, power it up as well. Complete the installation of the TG1-Express by screwing in the antenna at the top. Be sure to find the best mounting location for the TG1-Express by moving the radio around in the area where it is to be mounted. Refer to this FAQ for information about other aspects of the TG1-Express installation.

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