that links the transmitter and receiver caused by a standard intruder
walking at a speed of less than 2.3 m 7.5 feet per second through the beam.
Upon detecting such an interruption, the sensor shall transmit an alarm
signal to the alarm annunciation system. The sensor shall use a pulsed
infrared light source. Multiple sensors shall be able to operate within
the same zone without interfering with each other. The coverage pattern
shall be as shown.
2.2.10.1
Test Indicator, Photo-Electric System
The sensor shall be equipped with an LED walk test indicator. The walk
test indicator shall not be visible during normal operations. When
visible, the walk test indicator shall light when the sensor detects an
intruder. The sensor shall either be equipped with a manual control,
located within the sensor's housing, to enable/disable the test indicator
or the test indicator shall be located within the sensor so that it can
only be seen when the housing is open/removed.
2.2.10.2
Remote Test, Photo Electric System
A remote test capability shall be provided. The remote test hardware may
be integral to the sensor or a separate piece of equipment. The remote
test shall be initiated when commanded by the alarm annunciation system.
The remote test shall excite each sensing element and associated
electronics causing an alarm signal to be transmitted to the alarm
annunciation system. The sensor stimulation generated by the remote test
hardware shall simulate a standard intruder moving within the sensor's
detection pattern.
2.3
CENTRAL STATION HARDWARE
The central station computer shall be a standard unmodified digital
computer of modular design. The CPU word size shall be 64 bits or larger.
The operating speed of the processor shall be at least 150 MHZ.
2.3.1
Memory
The computer shall contain at least 40 megabytes of usable installed memory.
2.3.2
The power supply shall have a minimum capacity of 250 Watts.
2.3.3
Serial Port
a.
One EIA ANSI/EIA/TIA-232-F serial port shall be provided for
general use.
b.
Adjustable data transmission rates from 9600 to 57.6 kbps shall be
selectable under program control.
2.3.4
Parallel Port
An enhanced parallel port shall be provided.
2.3.5
Color Monitor
The monitor shall be no less than 430 mm 17 inches, with a minimum
resolution of 1280 by 1024 pixels, noninterlaced, and a maximum dot pitch
SECTION 13721A
Page 24
Previous Page
