DXR-701: 1-Channel Receiver

The Model DXR-701 is a digital receiver with an isolated relay output designed for use with Linear’s DX Format transmitters. This receiver can be used in a variety of remote control applications. When the receiver detects a signal from a transmitter programmed into its memory, the relay output activates. The relay has four optional output configurations.

In a typical installation, the receiver is connected to an alarm control panel, door strike, camera, high current relay or some other device. A transmitter is used to activate or control the device. The receiver should be mounted with the supplied mounting bracket indoors or outdoors inside a weather resistant non-metallic housing.

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. Receivers must be programmed to the transmitter’s code before system testing and operation. Up to 32 transmitters can be programmed into the receiver’s memory. The memory is retained, even without power.

The unit can be powered from a 11-17 VDC or 12-16 VAC power source. The relay’s normally open and normally closed contacts can switch up to 1 amp at 24 volts AC/DC.

Cutting jumpers select how the relay activates. The factory setting causes the relay to engage for four seconds each activation. Optionally, the relay can be set to engage for one second, toggle on with one activation then off with the next, or latch engaged until reset by pressing the program button.

A nine-inch wire lead serves as the receiver’s antenna. The red program indicator lights during RF reception. The installer can verify that signals are being sent from transmitters and diagnose interference problems by viewing the indicator. The indicator also lights during memory programming/erasing and flashes to count the number of transmitters in memory.


Installation Manual

Operating Frequency: 315 MHz
Data Format: DX format
Number of Codes: 1,048,575
Channels: one channel
Measured Range: 700 feet in one quadrant with DXT-21 transmitter; 500 feet in open air (four quadrant test)
Operating Temperature: 32° to 120° F (0° to 49° C)
Sensitivity: -95 dBm (typical)
Number of Stored Transmitter Codes: 32 per receiver
Receiver Output: For “C” relay contact, 1 amp, at 32 VDC per channel
Field Selectable Receiver Output Modes: Momentary, 4-second (factory set)
Momentary, 1-second
Flip-flop toggle
latch/restore, 2-channel only
MODE BUTTON (one per channel)
Learn Mode: Press and release to enter learn mode
Press and hold for five seconds after the last LED flash to delete all transmitters on an associated channel
Erase Memory: Press and hold for five seconds after the last LED flash to delete all transmitters on an associated channel
Clear Latch: Press and release
Clear Low
Press and release mode switch on channel 2 (DXR-702 only) to clear low battery
Steady: Indicates “learn” mode
Flashing: Indicates number of transmitters learned on the selected channel
RF Activity: Blinks synchronously with detected RF activity
Antenna: Wire lead
Input Impedance: 75 Ohm – 2:1 VSWR
Operating Voltage: 11 to 17.5 VDC
12 to 16 VAC
Current: 25 mA at standby at 12 VDC
60 mA in alarm at 12 VDC
Connectors: Screw terminal,+,-, with N/O, N/C, and common per receiver channel
Accessories: Mounting bracket, screws, and anchors (supplied)
Regulatory Requirements: FCC and DOC
Dimensions: 5.5″ W x 4.0″ H x 1.25″ D (140 x 102 x 32 mm), excluding antenna
Models compatible with the DXR-701
Model Description
DXT-21 2-Button, 1-Channel Handheld Transmitter
DXT-23 3-Button, 4-Channel Handheld Transmitter
DXT-25 5-Button, 8-Channel Handheld Transmitter
DXT-31 Door/Window Transmitter
DXT-41 1-Button, 1-Channel Key Ring Transmitter
DXT-42 2-Button, 3-Channel Key Ring Transmitter
DXT-54 Passive Infrared Motion Detector Transmitter
DXT-61A 1-Button, 1-Channel Pendant Transmitter
DXT-81 Bill Trap Transmitter