TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
Table 2-1. Operator Controls and Indicators
Control or indicators
Function
Operating mode switch
Selects the Control Unit operating mode (ACCESS,
(key-operated, 3-position
TEST/RESET, SECURE).
rotary)
AC POWER (indication lamp)
Illuminated when ac power is applied to unit.
Audible signal device
Sounds when the operating mode switch is at TEST/
RESET and a duress, intrusion, or tamper alarm is
received at the Control Unit.
b.
There is an adjustable alarm delay to allow
CU, turn mode switch to TEST/RESET, and then
access if the CU is within the secure area. Enter
to SECURE. Remove key and leave area before
the area and insert key in mode switch lock.
the end of the alarm delay or an alarm will be
Turn switch to TEST/RESET and then to
initiated.
ACCESS before the end of the alarm delay or an
alarm will be initiated. To leave the secure area,
2-3.
EMERGENCY OPERATION.
Operation with
turn mode switch to TEST/ RESET or ACCESS
incomplete surveillance coverage or faulty tamper circuit
and then to SE-CURE. Remove key and leave
should be held to a minimum. Extended periods of
area be-fore the end of the alarm delay or an
operation on battery (stand-by) power should be avoided.
alarm will be initiated.
2-4. UNUSUAL OPERATING CONDITIONS. Loss of
c. After responding to an alarm, reset the CU, to a
synchronization between Data Transmitter and Data
no-alarm
condition.
To
reset
Receiver may occur while operating during heavy
thunderstorms.
Section II. THEORY OF OPERATION
Unit also provides primary and emergency standby
2-5. FUNCTIONAL DESCRIPTION. The Control Unit is
power to its associated sensors; provides Secure,
the central element of J-SIIDS. Its primary function is to
Access, and Test/Reset modes of system operation
monitor continuously the status of the secure area. It
within the secure area; and maintains secure area
does this by processing signals from a duress alarm and
subsystem security by monitoring sensor and audible
five, or fewer, intrusion detection sensors located in the
alarm signal lines and antitamper control of its own
secure area. This status information is processed and
enclosure. See figure 2-2 for a simplified functional
transmitted to peripheral monitoring equipment. The
block
diagram
of
the
Control
Unit
Control
2-2
