LLR-4 Specifications
LRT-4 Specifications
2
Optional External
Antenna Connector
Audio Beeper
Model LRR-4
10-PIN Terminal Block
Read Range
Adjustment
Antenna Switch
Beeper Switch
Dimensions: 6.3” x 2.5” x 2.4”
AD0
AD1
BD0
BD1
CD0
CD1
DD0
DD1
GND
+VDC
Internal View
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 separate 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
Output Format
Transmitters are sequentially coded in the industry standard 26 bit 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.
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.
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:
1. Using a coin, place it in the gap (2-piece unit) near the key ring holder
and twist to pop the transmitter open.
2. Remove the old battery.
3. Insert the new CR2032, 3.3V, lithium battery. Be sure the plus (+) side of
the battery is visible when installed.
4. Snap both pieces together.
Range
Up to 400ft line of sight.
Buttons
(1 to 4)
Key Ring
Holder
Red LED
ID Label
I
Model LRT-4
Dimensions: 2.5” x 1.4” x 0.52”
Front View
Back View
VIKING
ATTENTION: When ordering LRT-4 Transmitters, quantity,
Facility Code, starting Transmitter, and Proximity Module
Number must be specified. Please use the attached order
form on page 4.
