Linear Products

DXT-31: Door/Window Transmitter


The Model DXT-31 Door/Window Transmitter is a battery powered stationary transmitter designed for use with Linear’s DX Format receivers. This transmitter can be used in a limitless number of wireless remote control applications. Triggering the transmitter with its built-in magnetic switch, an external switch or an external glass break detector sends a digitally coded wireless signal to its companion receiver. Pressing the transmitter’s case sends a test transmission.

The digital DX code format features over a million possible codes. The DX transmitters are precoded at the factory to unique codes, so no field coding is required. The DXT-31 can send three different codes: alarm, restore and low battery.

In a typical installation, the magnet is mounted on a door or window and the transmitter is mounted on the frame. When the magnet moves more than 1/2" away from the transmitter, an alarm signal is sent. When the magnet returns next to the unit, a restore signal is sent. Alarms and restores can also be sent from external contacts wired to the terminal block. Pressing the case sends a test transmission that indicates the current state of the contacts.

The transmitter is powered from two 3-Volt #2032 lithium batteries with an expected battery life of up to 3 years. The red test/operate indicator lights during operation and test. It will blink during operation and test when the batteries are low.

A three-position terminal block is for connection to normally closed external contacts or a normally open Window Bug type glass break sensor. An internal jumper selects which input to use. Selections are: internal switch only, external switch only, both external and internal switch, and glass break sensor.

A snap-on transmitter mounting plate is provided for easy installation. The magnet has four height positions. An additional snap-on magnet spacer is provided for a total of eight magnet positions.

Features

  • Alarm, alarm restore, and low battery transmissions
  • Includes magnet for internal contact
  • Includes mounting shoe
  • External Contact Terminals
  • DX format
  • N/O or N/C input loop circuit
  • Powered by 2032 two lithium batteries (included)
  • RF frequency: 315 MHz
  • 1.6" W x 3.4" H x 1.2" D
  • Order number: SBT00014