Perimeter Intrusion Detection System

State of the art Perimeter Protection
The prevention and detection of intrusions by unauthorized personnel into high security, sensitive, secret or vital sites has long been the aim of Magal Security System's DTR-2000 Taut Wire Intrusion Detection System (TWIDS).

Since its first installation over 30 years ago it has been accepted universally as the ONE system which can be totally relied upon, and which combines an unequaled Probability of Detection (PoD) with a virtual absence of either False Alarms or Nuisance Alarms.

Because the DTR-2000 has no weather, terrain or other environmental limitations, it has been giving reliable, trouble and maintenance free service - in dry and scorching desert conditions; under severe storms; in tropical, hot and humid climate well as in sub zero snow-covered areas.

FENCE CONFIGURATION
The heart of this system is an electro­mechanical sensor which — upon activation — sends a signal to the Computerized Control Center (CCC). The CCC evaluates this signal, sounds an alarm, and gives a clear indication of the type and location of this intrusion attempt.

The DTR-2000 can be installed as a free standing fence on most existing fence posts, thus serving as a true physical intrusion barrier — or it can be wall mounted to detect any climbing over the wall or fence. Roofs and other such surfaces can be equally well pro­tected by short outrigger-type posts, assuring that buildings which are located near the fence will not serve as possible "weak spots" to intruders

SYSTEM PERFORMANCE
One of the main problems with any alarm system is the unacceptable number of False and Nuisance Alarms that they produce. Thus, frequently, an alarm is simply disregarded by the guard personnel — with obvious dire results. The DTR-2000 system is free of this problem — correctly installed it is guaranteed to have less than one False Alarm per Kilometer of system per Three Months. And — this extremely low rate notwithstanding — the Probability of Detection approaches 100%!

Cutting the fence wires, spreading them, climbing over them on a ladder or through them, cutting the communi­cation cable or trying to tamper with the sensor itself will all cause an imme­diate alarm. Due to the fact that a force of less than about 15 kg (33Ib.) will not activate the sensor, small animals such as rabbits, dogs, snakes, birds etc., will NOT cause an alarm.

THE DTR SENSOR
The patented electro-mechanical sense automatically adjusts to any slow soil movement or temperature change, and DOES NOT ever require periodic adjustment. It is set by the manufacture to maximum sensitivity, and is thus immune to possible decrease in sensitivity by inexperienced personnel. The DTR-2000 sensors are mounted on Sensor Posts, located halfway between adjacent Anchor Posts. Barbed (or barbless) wires are pre-tensioned between the Anchor Posts, at small dis­tances between them, thus presenting a array of wires impossible to penetrate without causing an alarm. Sensors in each Sensor Post are divided into six separate alarm groups. The CCC con­tinuously monitors all sensors, and in case of maintenance or repair to one group, all other sensors, on all sensor posts, continue functioning normally.

The monitoring of the sensors, as well as the Alarm Reporting is accomplished through the State of the Art Sensor Post Reporting Unit (SPRU) installed on each Sensor Post and linked to the CCC by means of the Communication Cable. Each Sensor Post is protected against sensor tampering by means of a tamperproof cover, also monitored by the CCC.

SYSTEM INSTALLATION
The DTR-2000 system, in its free standing configuration, is installed on either an existing carrying fence (provided this fence meets certain design criteria and specifications supplied by Magal) or on a fence specifically constructed for that purpose.

Because of the pre-tensioned wires, the Anchor Posts must be rigid enough and sufficiently supported to withstand these tensioning forces. Sliding devices ("spirals") are located at intervals of 1.5 to 2 m (5 ft. to 6.6 ft.) between the posts, maintaining proper wire spacing and converting wire deflection in any direction into lateral motion necessary to activate the sensors.

OPTIONAL ADD-ON SYSTEMS
Additional alarm devices, such as flood­lights, sirens, CCTV cameras, etc. may be connected to any Sensor Post in the system, and activated either manually or by the Sensor signal.

Thus, a guard can visually confirm an intrusion attempt by viewing the intruder on a monitor, without having to watch that monitor at all times — a tiring task requiring the frequent change of operator personnel.

UNIVERSAL SUITABILITY
The DTR-2000 is unaffected by EMI/RFI, or by climatic conditions. It is protected against lightning and can be supplied for any site length, terrain, rea­sonable system height or configuration.

It is thus suitable for any and all high security sites requiring the best security with high reliability.