a sensor test;
(i) Switch detection subsystem zone analog, audio frequency
output from the corresponding control unit audio input terminal to
the audio bus for annunciation on the audio annunciator when the
status of that zone changes from SECURE to ALARM.
(2)
Keyboard control
(a)
Change zone status to ACCESS or SECURE;
(b)
Display current zone status;
(c) Permanently record (print) current zone status and the time
and data thereof;
(d) Accept, store, and permanently record (print) user-entered
installation-related data;
(e)
Initiate sensor self-tests;
(f) Switch operator-selected detection system zone analog, audio
frequency output from the corresponding control unit audio input
terminal to the audio bus for annunciation on the audio
annunciator in response to simple control key operations.
Display unit shall continue to monitor zone status; annunciate zone alarms,
monitor and control unit ac primary power failure and restoration, and
communications failures; control map display zone status annunciation; and
supervise communication lines while operator-controlled functions are
performed.
2.4.18.4
Central Processor Requirements
a.
Mounting:
[Desk mount] [19 inch electronic equipment rack mount];
b.
Input power: 115 volts plus or minus 10 percent (switch
selectable), 60 Hz, single-phase ac primary power, circuit breaker
protected, 150 to 200 watts average;
c.
Storage temperature:
Minus 55 to plus 52 degrees C;
d.
Operating temperature:
0 to plus 50 degrees C;
e.
20 to 95 percent, noncondensing;
f.
Inputs:
Control unit response;
g.
Outputs: Alarm relay (NO, NC, common ground) on computer console;
Control unit interrogation and control map data plus 9 to 15 volts
dc local (audio annunciator power only); and
h.
Controls: As specified in paragraph entitled "Display and
Keyboard Requirements."
2.4.18.5
Display and Keyboard Requirements
a.
Display and keyboard: [Mount as the front panel of the central
processor unit] [A detachable unit] including the display panel,
SECTION 13703N
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