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Linear DXS Supervised Receiver, 4-Channel


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Features DXS Wireless Technology

The Supervised Wireless Receivers can be used in a variety of security and remote control applications. When the receiver detects a signal from a compatible transmitter programmed into its memory, the appropriate channel output activates. In a typical installation, the receiver is connected to an alarm control panel, door strike, camera, high current relay or some other devices. Transmitters are used to activate or control the devices.

The receivers feature solid state outputs designed for use with Linear’s DXS and DX transmitters. The channel outputs have three optional configurations; momentary, toggle on/off, and latch until restored. Status and low battery outputs are for supervisory indications. Cutting jumpers select which channels require supervisory status reports from transmitters.

They incorporate a dual high-sensitivity superheterodyne diversity receiver with two whip antennas. This type of receiver provides superior performance by preventing loss of signal due to multi-path interference. The receiver should be mounted indoors or inside a weather resistant non-metallic housing for outdoor use.

The digital DX/DXS code format features over a million possible codes. The transmitters are precoded at the factory to unique codes, so no field coding is required. For versatility, any transmitter can be programmed into any receiver channel. Receivers must be programmed to recognize the transmitter’s code before system testing and operation. Up to 32 transmitters can be programmed into the receiver. Each button on multi-button portable transmitters send a unique code, and are programmed as separate transmitters.

The CHANNEL display shows the channels activated and the presence of radio activity. Individual indicators for ALARM, STATUS, and LOW BATT show the supervisory status of each receiver channel. All outputs can be configured for normally open or normally closed.

  • Dual diversity superheterodyne receivers
  • Compatible with DX and DXS transmitters
  • Measured line-of-sight range of 1,500 Feet
  • Quick-learn programming
  • Selectable supervision
  • Individual outputs per RF channel for alarm, low battery, and status trouble reports
  • 7-segment channel display (decimal point indicates RF activity)
  • LED Indication for alarm, low battery, and status
  • Solid state outputs
  • 100 mA maximum output rating
  • Selectable outputs per channel: momentary, latch, toggle
  • Operating voltage: 10.2 to 14.4 VDC or 12 to 16 VAC
  • Current consumption: 30 mA standby, 120 mA operating @ 12 VDC
  • 7.25" W x 5.0" H x 1.0" D (without antennas)

Note: The unites can be powered from a 10.2-14.1 VDA or 12/16 VAC power source (sold separately). The units will draw about 35 mA standby and up to 120 mA in alarm.

Linear DXS Wireless Transmitters

DXS wireless transmitters and receivers are Linear’s fully supervised systems with up to 1,500 feet of range. A step up from the Linear DX models, these performance-enhanced products feature optimized pulse position based RF transmission technology. Available 1, 2, 4 and 8 channels, the receivers support up to 32 quick-learn transmitters. DXS supports over one million unique transmitter codes.


Technical Details

  • Receiver Type: Diversity, dual superheterodyne
  • Carrier Frequency: 315 MHz
  • Bandwidth: 400 KHz typical
  • Receiver Sensitivity: -102 dBm typical at each antenna
  • Data Formats: Linear DX and DXS
  • Modulation: Type A1D, PPM (pulse position modulation)
  • Measured Range: 1,500 feet typical, with most standard Linear DX or DXS stationary transmitters
  • Transmitter Capacity: 32 total with any distribution between channels (Note: learning multiple transmitters into any channel will defeat device supervision)

Receiver Outputs

  • DXSR-1504: 4-Channel alarm outputs, one common low battery output, and one common status output
  • Type: Open collector
  • Mode: Factory set to normally open; can be globally selected as normally closed by internal jumper
  • Current Rating: 100 mA maximum per output point

Channel Output Options

  • Momentary: 1-second minimum, momentary closure on alarm
  • Toggle: Alternate alarm action (toggle on, toggle off)
  • Latch: Requires manual reset at receiver, or operates as a follower with door/window transmitters; latches "on" with open (alarm) condition; latches "off" with closed (restore) condition

Display Output

  • Channel Display: One 7-segment LED indicator; displays flashing center dash in power on an standby; displays channel ID during alarm condition along with alarm condition LED; automatically clears when alarm output restores; displays "P" and channel ID during programming mode
  • RF Activity: Indicated by decimal point on 7-segment display; indicates radio receiver activity; flashes with received data
  • Alarm Condition: Three LED indicators – alarm, low battery, and status; displays conditions with corresponding channel ID
  • Operating Voltage: 10.2 to 14.4 VDC or 12 to 16 VAC

Operating Current

  • Standby: 30 mA
  • Alarm: Up to 120 mA
  • Operating Temperature: 32° to 140° F (0° to 60° C)
  • Dimensions: 7.25" W x 5.0" H x 1.0" D (185 x 127 x 25.4 mm)
  • Space Required for Installation: 7.5" L x 14.0" H
  • Antenna: Two, 9-1/2" wire whip antennae (supplied)
  • Mounting Hardware: Four #6 x 1 1/4" wood screws (supplied)

Receiver Operating Parameters

  • Status Supervision: Monitored on each channel for hourly status transmissions, reports status exception if no transmissions received within last 8-hour time period; one common status output provided for all channels; 7-segment display indicates channel where violation occurred; exception set and cleared by channel
  • Enable Options: Status supervision enabled per channel; status enabled by cutting proper jumper per channel; factory default disabled; Note: with status supervision monitoring, it is not recommended to have more than one transmitter learned per channel
  • Low Battery Supervision: Monitors each transmitter for low battery alarm; reports if any learned transmitter low battery signal received; one common low battery output for all transmitters; 7-segment display indicates channel where low battery occurred; low battery set and cleared by individual transmitters; transmitter that sends low battery report must send a good battery signal to clear low battery condition
  • Program Mode: Enabled by program jumper; remove to enter program mode
  • Transmitter Learn: Momentary press and release desired channel learn button; activate transmitter with five seconds to learn it into desired channel
  • Memory Erase: Hold appropriate channel learn button for more than 10 seconds and release; transmitters learned into that channel will be erased from receiver memory
  • Memory Interrogation: Hold appropriate channel learn button for more than five and less than 10 seconds; alarm LED will flash the number of transmitters learned into selected channels