CHAPTER 2 OPERATING INSTRUCTIONS - TM-5-6350-264-14-P-40012

TM 5-6350-264-14&P-4

NAVELEX EE 181-AA-OMI-050/E121 DT546 M9442

TO 31S9-2FSS9-1-4

CHAPTER 2

OPERATING INSTRUCTIONS

Section I. OPERATING PROCEDURES

2-3. EMERGENCY OPERATION.

2-1. CONTROLS AND INDICATORS. There are no

Operation with

incomplete surveillance coverage or faulty tamper

operator controls or indicators applicable to this

circuit should be held to a minimum. Extended periods

equipment.

of operation on battery (stand-by) power should be

2-2. NORMAL OPERATING PROCEDURES. The VS

avoided.

is operational after it has been installed, tested, and

2-4. UNUSUAL OPERATING CONDITIONS.

connected to the J-SIIDS Control Unit. Since the startup

Operation during periods of construction or heavy

and shutdown of the VS are dependent on the presence

vehicular traffic will affect system sensitivity. Faulty

or absence of power from the J-SIIDS Control Unit, no

heating or ventilating equipment operating in the

operating

procedures

are

required.

immediate area will affect system performance.

Section II. THEORY OF OPERATION

2-5. FUNCTIONAL DESCRIPTION. The VS consists

These vibrations are sent to the Processor which

recognizes a vibration impulse of 100 milliseconds or

of a Processor and up to twenty Detectors for sensing

longer. Four 100-msec pulses within a 15-second

intrusion generated vibrations in the 10- to 15-kHz

period or a single 4.5-second pulse will activate an

(audible) range. Figure 2-1 is a simplified block diagram

alarm in the Processor. The Processor then sends an

of the VS. The VS will detect structurally transmitted

alarm signal to the J-SIIDS Control Unit. A tamper

vibrations resulting from an attempted forced entry by

alarm signal is sent to the Control Unit whenever the

drilling, cutting, burning, or chipping through protective

cover of the Processor or a Detector is opened. The J-

barriers. The Detector will sense vibrations generated

SIIDS Control Unit provides operating power to the VS.

within approximately 3 feet (1 meter) of its position.

Figure 2-1. Vibration Sensor Group Simplified Block Diagram

2-1/(2-2 blank)