Trine Wireless Controller and Transmitter: Simplified Access Control

Using a wireless transmitter in the shape of a fob, the receptionist can remotely unlock the front door even when away from her desk.

For this installation, the wireless controller/receiver operates using the same 24VDC filtered and electronically regulated power as the electric strike and the badge reader. The power supply and badge reader enclosures are installed in the server room behind a narrow dividing wall. A four wire 18 gauge jacketed cable was run from the Trine 017TDC-3 installed in the attic down through the wiring tube and wired into the enclosure containing the badge reader circuit board, terminal strip, backup battery and Altronix LPS3R circuit board. The LPS3R Linear Power Supply/Charger converts AC input to low voltage 12VDC/24VDC output. This power supply/charger produces 2.5 amps continuous supply current that is filtered and electronically regulated. The LPS3R will charge backup batteries at a maximum charge current of 500mA.

Wiring the controller began with determining which badge reader circuit board output connector controlled the power to the front door. We could not just follow the wires, as there were two sets: one for the front door and one for the back door. The badge reader circuit board had two output connectors: one for the front door and one for the back. We disengaged one connector and tested the operation of the front door using the locksmith’s employee badge. The electric strike released. The other connector operated the front door. Following the wiring, we determined which terminal strip connectors were used to wire in the HID badge reader. The controller would be wired into the same connectors. The power connector was detached from the badge reader circuit board. This way the connections could be made safely.

Two terminal strips connected wires from the badge reader circuit board and the LPS3R Linear Power Supply/Charger. The wiring from the Trine Wireless Controller/ Receiver would be wired into the terminal strip obtaining power from the LPS3R and jointly controlling operation of the electric strike with the badge reader circuit board.

For this installation, we set up the wiring as a wireless remote relay. Four wires were run from the controller:

Power In was positive (+) red wire and negative (-) black wire.

The relay wired was COM1 white wire and NO1 (Normally Open) green wire.

  • The controller’s positive (+) red wire was connected to the constant positive (+) wires on the terminal strip.
  • The controller’s negative (-) wire was connected to the constant negative (-) wires on the terminal strip.
  • The controllers NO1 wire goes to the constant positive (+) wires on the terminal strip.
  • The controller’s COM1 goes to the electric strike positive (+) output.

A jumper wire was run between the electric strike negative wire and the constant power negative (-) wire.



Once the wires were installed onto the terminal strip, the power connector was attached. The next step is to set the security code switches. Both the Trine 017TDC-3 Wireless Controller/ Receiver and the 018-2 Transmitter have eight slide type DIP (Dual inline package) switches in one group providing 6561 security codes. Each switch has two possible positions -- on or off. To set the security code, all eight DIPswitches on controller and the transmitter must be in the same positions.

A second group of four DIPswitches in the controller is the relay control switch. The positions of the four switches set the mode of operation - one device or two and which button operates what device. The four DIPswitches were in the on position, all up. In this position, any button operates both relays, eliminating the need to remember which button powers the solenoid in the front door electric strike.

The final adjustment is the trigger time delay setting. Two time delay knobs in the controller set the trigger time delay. Rotating the knob clockwise increase the delay. For our purposes, the delay was set at five seconds.

The system was tested first with the transmitter in close proximity to the door. Eventually the optimum position of the controller was determined and installed onto a 2x4 about four feet above the attic floor. Pushing either button illuminates the LED on the transmitter and when in range powers the solenoid and releases the electric strike’s keeper.

A wireless controller and transmitter can be a good choice for remote operation of an electronic lock mechanism.

For more information, contact your locksmith distributor or Trine Access Technology, 1440 Ferris Place, Bronx, NY 10461. Phone: 718-829-2332. Web:


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