Linear 234 Owner's Manual

DOOR♦♦GARD SELF-CONTAINED ACCESS
CONTROL SYSTEMS

234 Wiring Diagrams and Specifications

TECHNICAL NOTES

• NEW- HI-CO & LOW-CO CAPABILITY: This card reader is capable of

reading most High and Low Coercivity Magnetic Stripe cards (Including 300,
2750 & 4000 Oersted). Place the P3 jumper cap ON both pins located on the
card reader circuit board to set it for HI-CO cards. It should also read most
LOW-CO cards reliably. If only LOW-CO cards are being used, place the
jumper cap on one pin.

• To avoid ESD (electro-static discharge) from interfering with the operation of
the Door♦Gard, ground the negative terminal of the keypad to earth ground. If

the power supply cannot be grounded, then ground the case.

• If a door position switch is not used, you must short the white and white/orange

wires on P6 for REX to work.

• The bi-color LED provided with this Door♦Gard lights red when the Main

Relay is de-energized and green when the Main Relay is energized.

• When mounting this unit outside, apply silicone to any non-factory drilled holes

in the case. This helps prevent warm air from condensing on the circuit board.

• For use in extreme weather conditions, please consult the factory for additional
methods of protecting your Door♦Gard from the environment.

• To speed up installation, holes have been spotted on the inside back of the
housing for mounting to a wall, single or double-gang electrical box.

• Holes have been spotted on inside front of the housing for the addition of extra
LED’s (not included).

SPECIFICATIONS

Case Dimensions: 4.50”w x 4.50”h x 1.55”d

Operating Voltage: 12 -24V AC/DC (No Jumper)

Max Current Draw: 12VDC: 45mA

24VDC: 55mA
12VAC: 77mA
24VAC: 98mA

Main Relay Contacts (K1): 2 Amp @ 12-24VAC/DC

Auxiliary Relays Contacts (K2, K3, K4): 1 Amp @ 12-24VAC/DC

Environment: Indoor or Outdoor

Temperature: -31°F to 151°F (-35°C to 66°C)

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INTERNATIONAL ELECTRONICS, INC.

International Electronics, Inc. (IEI) warrants its products to be free from defects in
material and workmanship, when they have been installed in accordance with the
manufacturer’s instructions, and have not been modified or tampered with. IEI does
not assume any responsibility for damage or injury to person or property due to
improper care, storage, handling, abuse, misuse, normal wear and tear, or an act of
God.
IEI’s sole liability is limited to the repair or (at IEI’s option) the replacement of the
defective product or part when sent to IEI’s facility (freight and insurance charges
prepaid), after first obtaining IEI’s Return Merchandise Authorization.
IEI will not be liable to the purchaser or anyone else for incidental or consequential
damages arising from any defect in, or malfunction of, its products. This warranty
shall expire two years after shipping date for DOOR-GARD keypads.
Except as stated above, IEI makes no warranties, either express or implied, as to any
matter whatsoever, including, without limitation to, the condition of its products,
their merchantability, or fitness for any particular purpose.

427 TURNPIKE STREET
CANTON, MA 02021 USA
800-343-9502, 781-821-5566,
781-821-4443 (FAX)
WEB ADDRESS: www.ieib.com

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