PART 2
PRODUCTS
2.1
FIRE ALARM MONITORING CENTER
2.1.1
Digital Alarm Communicator Receiver (DACR)
Two identical DACR systems shall be provided. The system shall be
completely assembled, wired and tested at the factory, and delivered ready
for installation. The DACR shall be solid state design with receiver,
signal to message decoder, audio alarm signaling devices, audio alarm
silence switch, visual display, alarm reset switch, alarm recording
printer, primary and emergency power supplies, power supply monitors,
memory devices and necessary interconnecting cables. The DACRs shall be
configured as one active unit and one backup unit. Provide programming,
connections and switching such that the backup unit may be switched into
service within 30 seconds of detection of failure of the active unit.
2.1.2
Audible Alarm
The audible alarm signaling devices used to indicate the receipt of fire
alarm messages shall produce a unique sound. The device shall be
internally mounted in the DACR and shall be activated upon receipt of all
fire alarm signals. The audible device shall also be used to indicate the
receipt of DACT trouble messages, including fire alarm system trouble and
supervisor signals. The audible device shall continue to sound until
acknowledged with the silence switch by the operator.
2.1.3
Receiver Code Format
The DACR shall be capable of receiving and decoding any of the following
code formats:
Code Format
Speed (pulses per second)
3
X
1
20
4
X
1
20
4
X
2
20
3
X
1
10
3
X
1
40
2.1.4
Visual Display
**************************************************************************
NOTE: Listed displays are minimum requirements; if
additional visual displays are required, they must
be added to the list.
**************************************************************************
Visual display shall be alphanumeric [LED or LCD] [cathode ray tube (CRT)]
type. Display shall indicate as a minimum the originating transmitter
identity code number and shall include the following message designations:
a.
Fire
b.
Trouble
c.
Battery
SECTION 13853A
Page 10
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