NAVELEX EE181-AA-OMI-07A/E121 DT-545
Section I. OPERATING PROCEDURES
installed, tested, and connected to the J-SIIDS Control
2-1. CONTROLS AND INDICATORS. There are no
operator controls or indicators on the GWS.
2-3. EMERGENCY OPERATION.
2-2. NORMAL OPERATING PROCEDURES.
incomplete surveillance coverage or faulty tamper circuit
GWS is operationally ready after it has
should be held to a minimum.
Section II. THEORY OF OPERATION
figure 2-1 for a simplified block diagram. When a break
2-4. FUCTIONAL DESCRIPTION. The GWS provides
in the wire grid occurs or when one of the tamper
an intrusion alarm signal output when a break occurs in
switches is activated, the normally low resistance
the wire grid. A tamper alarm is activated when the
present across the output terminals changes to a high
cover is lifted or the chassis is pulled away from its
resistance(100, 000 ohms or more).
mounting surface. These two signals are normally wired
resistance output to the J-SIIDS Control Unit activates an
in series into the sensor tamper input in the Control Unit,
Figure 2-1. Grid Wire Sensor Simplified Block Diagram 2-1