LRA Products

Each zone on a LRA receiver can only accommodate 1 transmitter.  Often times, programming problems can be corrected by first deleting the memory from a zone on the receiver. LRA D1000 Drawing that shows the volume control knob, melody selector button, and mode selector button.
  1. Open the cover of the receiver
  2. Hold down the "zone selector" button (the left button) for approximately 3 seconds until zone 1 starts to flash.  Stop pressing the button.  If you are deleting memory from zone 1, move to step 3.
  3. Push the left button again to scroll to the zone where you want to delete memory.  The zone number will flash.
  4. Simultaneously, hold down the zone selector button (on the left) and the melody button (on the right) for approximately 3-5 seconds until you hear a short tone sound.   The short tone sound means the memory has been deleted in that zone.

For more information on how to program with receiver, please watch our instructional videos located on our YouTube channel: LRA Instructional Videos

Video Playlist on Programming the LRA Series by Safeguard Supply
Typically there are two reasons why the sound may not be coming out of your LRA-DCRX long range receiver. First, check the selector switch on the side of the unit. There are three modes you can set the receiver to a) strobe only, b) sound only, and c) strobe and sound. Often times when there's no sound it is because the selector switch is on sound only. Second, check the volume control selector. Open the front cover of the receiver and locate the volume adjustment dial. Use a small screwdriver to adjust the sound level. Take a look at this illustration to get an idea of where the selector switch is located. Safeguard Supply LRA-DCRX Flashing Receiver Battery Operated Wireless Chime

Removing batteries or unplugging the transformer from the LRA-DCRX will not delete any programming.

  • Once a transmitter / sensor is programmed to a zone on a LRA series receiver, a new transmitter / sensor cannot be added to that zone until the memory of that zone is deleted.For example, if you have previously programmed a LRA-PBTX push button to Zone 1 on your receiver and after a few years of use you want to replace the push button.  Prior to programming your new push button to the receiver, you must delete the old transmitter that is locked into Zone 1 memory.The instructions below illustrate how to delete the zone memory from the LRA-DCRX and LRA-DCRXA memroy.  The process for the LRA-VPRX is slightly different, but the basic concept is the same.  To delete memory from the LRA-DCRXS Plug-in Strobe Receiver, click here.
    • Make sure you are deleting the right zone. If the transmitter/sensor is programmed to zone I, for example, the Roman Numeral for zone I will flash when triggered.
    • Enter programming mode my holding down the zone selector button for approximately three (3) seconds.  The strobe will flash and the icon for Zone I should start flashing.Programming the LRA-DCRX Receiver
    • Once the strobe flashing and you are in programming mode, stop pressing the zone selector button.
    • If you would like to delete the memory in zone one, skip to the next step.  If you want to delete the memory from another zone, press the zone selector button to scroll to the zone you wish to delete.
    • Once you are at the right zone, hold down the zone selector button AND the melody button (at the same time) for approximately five (5) seconds. You will hear a short tone sound. This zone has been deleted.
    • Next, press the program button to skip through the other zones.
    • Once you pass zone IV , the zone lights will stop flashing, signaling it is out of pairing/programming mode.

Using the Relay on the LRA-DCRX to Connect External Device

LRA-DCRX relay settings and location on back top right of LRA-DCRX product. The LRA-DCRX receiver features a relay that may be used to integrate and activate an external device.  For example, a strobe light, 12V DC output, or other devices may be configured to trigger when the relay on the receiver activates. Tips & Notes:
  • The unit WILL NOT supply power to the external device.  The external device must have a separate power supply.
  • The relay ONLY works with Zone 4 on the receiver.  For the relay to work, there must be a transmitter paired with Zone 4.LRA-DCRX Relay Diagram.  Use a small screwdriver to put wires for external device into NO or NC slots.
  • The relay DOES NOT provide power.
  • The relay may be set to normally open or normally closed.
  • Ensure the relay is set to the "on" position.
  • Set the duration of output to 2 seconds or 5 seconds.
In this example we will wire a 12V DC siren to sound when the push button paired to Zone 4 is triggered. LRA-DCRX Relay Wiring to External Device.  Use the jumpers to set to specific zone and to tigger for allocated time.  Drawing shows jumper settings. What you will need:
  • A LRA trasmitter (push button, door contact, etc.) paired to zone 4 of the LRA-DCRX receiver.
  • 12V DC siren
  • Extra wire (as needed)
  • External power device used to power the 12V DC siren.  In this example we are using a 16.5 VAC /40VA Class II plugin transformer.  Please make sure the power supply you use will supply the necessary power to the external device.
  1.  Ensure the power supply is unplugged.
  2. Wire one wire of the siren into one of the "normally open" connectors on back of the receiver (see image below).
  3. Wire the other wire of the siren to the plug-in transformer (see image below).
  4. Take a wire and connect one end into the other slot of the "normally open" relay.
  5. Take the other end of that same wire and connect it to the transformer (see image below).
  6. Plug in the transformer.  Ensure the receiver is powered on--test.

To change a programmed melody on the LRA-DCRXS (plugin strobe receiver) you must erase the memory and reprogram.  During programming, you can select the melody you want for each transmitter.

Please note, the melody associated with a zone on the LRA-DCRX may be changed without deleting the memory.

How to Program a Push Button to the LRA-DCRXS Plugin Receiver

-When I try to enter programming mode on the receiver, the red LED is not flashing, it is a solid red LED that does not flash:

This signifies that the two zones of the receiver are programmed/occupied by transmitters.

To program transmitters, you must delete the memory of the receiver.

-When I try to enter programming mode on the receiver, the red LED is not flashing, it is a solid red LED that does not flash:

This signifies that the two zones of the receiver are programmed/occupied by transmitters.

To program transmitters, you must delete the memory of the receiver.