SENSORS CHARACTERISTICS, CAPABILITIES, AND FEATURES

TM 5-6350-275-24&P

ECE CAPABILITIES AND FEATURES (Cont'd)

Card reader - The card reader, reader-only systems interface directly to the IAC. Reader-plus-PIN (or PIN only)

systems interface to the IAU which then communicates with the IAC. LED displays are provided for reader-only

units and these are amplified by the LCD display on the IAU for PIN-supported transactions. When used in

conjunction with the PIN pad, the card reader is incorporated in the IAU surface mounting enclosure. For reader-

only applications, the reader is surface mounted, but flush mounting units can be provided if "inserts" cards or

tokens are used.

Combination key pad/card reader - The combined functions described for the Key Pad IAU and the Card Reader

listed above apply to the combination key pad/card reader.

f. Sensors. Used to detect unauthorized entry into declared security areas or zones, to include rooms, cabinets, and

safes, etc. These sensors may be used to detect movement, heat sources, vibrations or unauthorized forced entry

through doorways or other entry ways. These sensors are tamper proof and produce alarms that are monitored by their

Remote Terminal Units (RTU) when unauthorized entry or forced entry is detected.

SENSORS CHARACTERISTICS, CAPABILITIES, AND FEATURES

Interior Sensors

Balanced Magnetic Sensor (BMS) (standard and low profile) - A penetration sensor that detects the opening of

doors, roll-up doors, and windows. The BMS alarms when the separation between the actuating magnet and switch

assembly changes by 0.80 0.40 inches in any plane, or when the local magnetic field has a positive or negative

difference from the initial adjustment. The BMS has Rhodium-Plated contacts which prevents sticking and freezing

on seldom-used doors. Has pry tamper feature, which signals an alarm if forced removal of sensor. Has life

expectancy of 10,000,000 cycles using highly stable Alnico VIII and Arnox V magnets.

Capacitance Proximity Sensor (CPS) - As a penetration sensor, it is connected to isolated metal bars, mesh, or

screens which cover windows, vents and other openings. As a point sensor it is connected to safes, file cabinets,

and other metal objects. The CPS detects the change in capacitance between the connected object and ground

resulting from the close approach or touch of an intruder.

The CPS has a field adjustable sensitivity control. The CPS adjusts to slowly changing values total capacitance

caused by environmental changes such as humidity. The unique automatic balancing feature permits connection

to objects in daisy-chain fashion with no time consuming tuning procedures. The CPS contains solid-state circuitry

that discriminates between natural environmental conditions and intrusion related disturbances. The CPS sensor

will protect up to 50 - 4 drawer file cabinets, 50 - office desks, 75 - offices safes, and 15 - vans or small trucks

(under cover). The CPS sensor is fully tamper proof and has a test switch for Sensor Test Verification.

Microwave Motion Sensor (MMS) - Uses Stereo Doppler to detect the movement or distance a target moves in a

set period of time. The MMS sensor can also be mounted in an explosion proof enclosure, used to protect

hazardous locations. The MMS uses two receiving channels and a three way sensitivity switch, which is set to

sense the distance a target is required to move before causing an alarm. A precision antenna provides for precise

control of detection pattern. Special signal processing provides maximum protection against RFI and fluorescent

light interference. The unit also has a terminal connection, anti-tamper switch.

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