TM 5-6350-264-14&P-9
NAVELEX EE 181-AA-OMI-100/E121 DZ-204
T.O. 31S9-2FSS9-1-9
OPERATING INSTRUCTIONS
Section I. OPERATING PROCEDURES
CONTROLS AND INDICATORS. There are no
2-3.
EMERGENCY OPERATION. Operation with
operator controls or indicators applicable to this
equipment.
incomplete surveillance coverage or faulty tamper circuit
should be held to a minimum. Extended periods of
operation on battery (stand-by) power should be avoided.
2-2.
NORMAL OPERATING PROCEDURES.
The AA is ready for operation after it is installed, tested,
OPERATING
CONDITIONS.
and connected to the J-SIIDS Control Unit. Since the
startup and shutdown of the AA is dependent upon the
Relocation or storage of large objects within close
presence or absence of power from the J-SIIDS Control
proximity of equipment cabinet will reduce effectiveness
Unit, no operating procedures are required.
of audible signal.
Section II. THEORY OF OPERATION
used to operate all electronic circuitry including the
FUNCTIONAL DESCRIPTION.
The Audible
battery charger. Emergency power is provided by the
Alarm provides an audible indication of an alarm
battery. If ac power fails, the AA will automatically draw
condition when it receives an alarm signal from the J-
operating power from the battery. A tamper alarm is
SIIDS Control Unit.
An alarm signal switches on
automatically initiated if the AA enclosure door is
electronic circuitry that produces a loud (min 108 db @
opened, if the enclosure is pried away from its mounting
10 ft), varying (500 to 2, 000 Hz) tone. This alarm
surface, or if the inner and outer enclosures are shorted
indication will continue until the cause of the alarm has
together. Figure 2-1 is a simplified block diagram.
been removed and the Control Unit (CU) has been reset.
Primary ac power is provided by the CU. This ac power
is rectified to dc and
Figure 2-1. Audible Alarm Simplified Block Diagram
