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LONG-RANGE TAG/CARD READER KIT

DoorKing Part Number

1815-350

The DoorKing UHF tag/card reader is designed as a long range RFID reader using passive tag/card technology. Passive tag/card technology does 
not contain a battery in the tag/card so it will never wear out. The long range reader emits an RF signal which powers the tag/card when the 
tag/card enters the scanning area of the reader’s antenna. The tag/card relays its Wiegand number back to the reader which reports the tag/card’s 
number to the connected access control system. There is an interface module supplied with the reader that eliminates the need to set up the 
system using a computer. All necessary settings and adjustments can be made using the DIP and rotary switch on the reader’s control board. It is 
an effortless way to open the gate for authorized vehicles. Mount an authorized tag/card on the car that the antenna is able to scan and the gate will 
open as the car approaches.
The system will work with 26-Bit wiegand controllers. It uses frequency-hopping technology in the 902-928 MHz band (standard).

The UHF long range reader can operate in two different modes: 

Timing

 and 

Trigger

 mode which are selectable using SW2, DIP-switch 1 on the 

control board.

120 S. Glasgow Avenue

Inglewood, California 90301 

U.S.A.

Modes of Operation

Timing Mode:

 

If DIP-switch SW2, 

switch 1

 is set to the “

OFF

” position (left), the reader will work in 

Timing

 mode. It 

WILL

 attempt 

to read tag/cards that are within reading range at a rate determined by DIP-switch SW2, switches 2, 3 and 4. See other side for 

Timing

 mode wiring and DIP-switch settings.

Trigger Mode:

 

If DIP-switch SW2, 

switch 1

 is set to the “

ON

” position (right), the reader will work in 

Trigger

 mode. It 

WILL NOT

 

attempt to read tag/cards 

UNLESS

 the two trigger signal wires are shorted together (car on loop). Connect the dry contact relay 

wires of a vehicle loop detector to the loose red and black trigger wires on the long range antenna. See other side for “Optional” 

Trigger

 mode wiring and DIP-switch settings.

Installation

Side View

Make sure cars that have already passed 
through the gate 

will not

 be in the scanning 

area of the antenna.

See reverse side to properly adjust antenna 
switches and scanning range.

ISO Card UHF P/N 1508-190
UHF/DK Prox Dual Technology Card P/N 1508-198
Card Windshield Holder P/N 1815-318
Rear View Mirror Card Holder P/N 1815-319
Headlight/Windshield Tag P/N 1508-195
License Plate Tag P/N 1508-199

Tags/Card Placement on Cars:

 It should be placed on the side of the car 

(headlight/windshield) 

CLOSEST

 to where the antenna is located. The tags/card 

needs to be placed in 

visual sight

 of antenna or antenna can 

NOT

 read tags/card.

Never

 place tags/card in a position that will block the drivers vision.

SW2

Antenna

Bracket

Included

Fits 1.5”-3”

post not

provided.

Accessories sold separately:

Illustrations not to scale

Antenna
scanning area

Antenna

scanning area

Top View

Point the 
antenna 
towards the 
car waiting 
to enter.

Weather

Resistant

Housing

Included

Roadway

In-Ground Loop (Optional) when using Trigger Mode

In-Ground Loop
(Optional)
when using
Trigger Mode

Tag/Card
Windshield
Placement
Possibility

Windshield

Tag/Card Placement Possibility.

Locate on side of car 

closest

 to antenna.

Headlight

Tag Placement Possibility.

Locate on side of car 

closest

 to antenna.

Antenna Placement (Either side of Roadway)

License Plate

ON

Mount Card/Tags 

HORIZONTAL.

Mounting Tags/Card 
vertically will 

significantly

 

reduce scanning distance 
and 

NOT

 recommended.

YES

Vertical

Position

Position the antenna in the same plane as the mounted tag/card.
    - Windshield mounted tag/card:  Slant mounted antenna works best.
    - Headlight Tag/License Plate Tag:  Vertically mounted antenna works best. 

Antenna Plane
Slant mounted shown here.

Windshield Plane
(Slant)

Headlight Tag/
License Plate Tag
Plane
(Vertical)

Headlight/

Windshield

Tag

Headlight/

Windshield

Tag

License Plate Tag

License 

Plate Tag

Card

Card

NO

Antenna

Placement

Possibility.

Antenna
Placement
Possibility.

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