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Long Range 4 Channel Transmitter

Model: LRT-4

  • Read range of up to 400 ft (line of sight)
  • Convenient Key Fob design
  • 4 buttons to activate up to 4 different Wiegand devices
  • Secure, Rolling Code + Encryption, digital, anti-playback wireless transmission
  • Integrated 125KHz proximity module for close range access credential (can be used with Viking Proximity card readers and certain 125KHz HID* readers)
  • Replaceable CR2032 battery lasts up to 500,000 button presses
  • Robust buttons rated for up to 1 million activations
  • LED to indicate button press and battery strength
  • Internal silicone diaphram/gasket seals circuit board from moisture and debris
  • CE mark

* HID and the HID logo are registered trademarks of HID Global Corporation, an ASSA ABLOY company. All other trademarks are the property of their respective owners.

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Product Details

Viking’s model LRT-4 Long Range Wireless 4 Channel Radio Transmitter can be used with Viking’s LRR-4 Long Range 4 Channel Receiver to create a high frequency, long-range (RFID) identification solution. Intended for security access control applications, the LRT-4’s wireless communication is based upon a secure, digital, anti-playback routine.

The LRT-4 Transmitter has four buttons, each corresponding to its own Wiegand output on the LRR-4 Receiver. Each Transmitter includes an integrated red LED, used to indicate both positive button press and battery strength. The LRT-4 Transmitter operates at 433 MHz allowing a transmission range of up to 400 ft (line of sight). They are also equipped standard with a 125 KHz HID* compatible potted proximity module allowing the Transmitter to also be used as a close range access credential.

Applications

Use with the following Viking models to remotely activate relays for door/gate control, etc:

  • AES-2000: Accessible Entry System with ES-3 controller (DOD 202)
  • AES-2005: Accessible Video Entry System with ES-3 controller (DOD 204)
  • C-4000: Apartment / Office Entry Controller (DOD 164)
  • ES-1: Stand Alone Keyless Entry System (DOD 193)
  • ES-3: Entry System Controller (requires power adapter) (DOD 195)
  • K-1200-IP: VoIP 12 Button Apartment Entry Phone (DOD 271)
  • K-1205-IP: VoIP Apartment Entry Phone with Camera (DOD 274)
  • K-1270-IP: VoIP Apartment Entry Phone with Card Reader (DOD 274)
  • K-1275-IP: VoIP Apartment Entry Phone with Camera/Card Reader (DOD 274)
  • K-1700-IP: VoIP Entry Phone with Keypad (DOD 253)
  • K-1705-IP: VoIP Entry Phone with Keypad/Camera (DOD 254)
  • K-1770-IP: VoIP Entry Phone with Keypad/Card Reader (DOD 257)
  • K-1775-IP: VoIP Entry Phone with Camera/Card Reader (DOD 258)
  • K-1770-3: Entry Phone with Keypad and Card Reader (DOD 275)
  • K-1775-3: Entry Phone with Camera and Card Reader (DOD 280)
  • K-1900-8-IP: VoIP Entry Phone with Handset and Keypad (DOD 361)

Features

  • Read range of up to 400 ft (line of sight)
  • Convenient Key Fob design
  • 4 buttons to activate up to 4 different Wiegand devices
  • Secure, Rolling Code + Encryption, digital, anti-playback wireless transmission
  • Integrated 125KHz proximity module for close range access credential (can be used with Viking Proximity card readers and certain 125KHz HID* readers)
  • Replaceable CR2032 battery lasts up to 500,000 button presses
  • Robust buttons rated for up to 1 million activations
  • LED to indicate button press and battery strength
  • Internal silicone diaphram/gasket seals circuit board from moisture and debris
  • CE mark

* HID and the HID logo are registered trademarks of HID Global Corporation, an ASSA ABLOY company. All other trademarks are the property of their respective owners.

Specifications

  • Output Format: Transmitters are sequentially coded in the industry standard 26­bit Wiegand format, with exact number sequences. The Transmitter has an external number printed on the ID label found on the back of the Transmitter. Specific coding details, including internal number, facility code, and ID range can be found on the LRT-4 order form on page 4 of the Product Manual.
  • Enrollment: Transmitter must be clicked twice within a Receiver’s read range to be learned upon initial Receiver power up. This synchronizes the transmitter and receiver rolling codes. If the transmitter is clicked more than five times outside of the Receivers read range the transmitter and receiver will be desynchronized. To re-sync, click twice again within read range.
  • Time-Out: LRT-4 transmitters make use of a time-out feature to preserve battery life and prevent interference with other transmitters in the field. When a button is held down continuously the transmitter will transmit the code once and shutdown and will power up once the button is released.
  • Range: Up to 400ft line of sight.
  • Battery Replacement: Transmitters include a replaceable CR2032, 3.3V, lithium battery. The battery should be replaced when a button press does not result in a flash of the LED, reliable read range, and/or an output from the Receiver. To replace the battery, follow the directions below
  • Using a coin, place it in the gap (2-piece unit) near the key ring holder and twist to pop the transmitter open.
  • Remove the old battery.
  • Insert the new CR2032, 3.3V, lithium battery. Be sure the plus (+) side of the battery is visible when installed.
  • Snap both pieces together.

Compare With Similar Items

  • Cable Requirements: 24 AWG minimum, multi-conductor stranded with an overall foil shield, for example Belden 9540 or similar. Per the SIA’s Wiegand specification, maximum cable length is 400 feet (121.92 m).
  • Grounding: Shield (drain) continuity must run from the Receiver to the access panel. Shield and reader ground must be tied together at the access panel and connect then to an earth ground at one point.
  • Power: Power required is 12 VDC nominal at 120mA. The Receiver may be powered by the access panel. A linear power supply is recommended for best operation. Power Supply is not included, but can be powered directly from Viking model ES-1, K-1700-IP, C-4000, AES-2000, and AES-2005 entry systems. When used with an ES-3 a seperate 12 VDC power supply is required.
  • Mounting: The Receiver may be mounted indoors or outdoors. The base of the enclosure includes a drill template providing mounting provisions to a wall box (standard North American and European), as well as pre-drilled holes in the four corners allowing mounting to a flat surface.
  • Read Range Adjustment: As shipped, the Receiver is set for the maximum read range, which is nominally up to 400 feet. This may be reduced by adjusting the range pot in the counter-clockwise direction. Additionally, for optimal read range it is important that the Receiver be mounted as far from potential interference sources as possible. These sources may include, but are not limited to, large metal obstructions, as well as magnetic fields and radio transmissions. Note for each installation, read range may vary.
  • External LED Indicator: (Beeper Switch must be set to ON in order for the external LED to operate)
    • Amber: Normal powered on state
    • Flash Green: An activated Transmitter button press has been received and processed
    • Flash Red: A non-activated Transmitter button press has been detected
    • Off: Receiver is not powered on, or failed to power up successfully (or Beeper Switch is turned to OFF)
  • Antenna Switch: As shipped, the Receiver’s Antenna Switch is set in the INT position. If a separate antenna is to be used, then the switch should be set in the EXT position.
  • Beeper Switch: As shipped, the Receiver’s Beeper Switch is set in the ON position. If the installation technician prefers to disable the beeper and External LED Indicator, then the Beeper Switch should be set in the OFF position.
  • 10-Pin Terminal Block: Refer to the information below for cabling to the Receiver:
    • AD0: Button One, Wiegand Data 0, Channel A (GREEN)
    • AD1: Button One, Wiegand Data 1, Channel A (WHITE)
    • BD0: Button Two, Wiegand Data 0, Channel B (GREEN)
    • BD1: Button Two, Wiegand Data 1, Channel B (WHITE)
    • CD0: Button Three, Wiegand Data 0, Channel C (GREEN)
    • CD1: Button Three, Wiegand Data 1, Channel C (WHITE)
    • DD0: Button Four, Wiegand Data 0, Channel D (GREEN)
    • DD1: Button Four, Wiegand Data 1, Channel D (WHITE)
    • GND: Power, 0VDC (Ground)
    • +VDC: Power, 12VDC Nominal
  • Power: ­­­120V AC/12V DC 500mA, UL listed adapter provided or use any 12-24V AC or DC source @ 200mA (designed to share power with the doorstrike power supply)
  • Dimensions: 5.25” x 3.5” x 1.75” (133mm x 89mm x 44mm)
  • Shipping Weight: 3 lbs (1.3 kg)
  • Environmental: 32°F to 90°F (0°C to 32°C) with 5% to 95% non-condensing humidity
  • Relay Contact Ratings: 5A @ 30V DC/250V AC maximum
  • Maximum Wiegand Length: 152m (500 ft) with 24 AWG
  • Maximum LOG BUS Length: 1610m (5280 ft / 1 mile) with 24 AWG
  • Connections: (11) screw terminals, (1) RJ-11 telco jack

* HID and the HID logo are registered trademarks of HID Global Corporation, an ASSA ABLOY company. All other trademarks are the property of their respective owners.

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