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4.2.1.3.1.1
Detector
Bases
4.2.1.3.1.1.1
Intelligent
CO
Detector
and
Sounder
Base
The Intelligent CO Detector and Sounder Base (MB-CSHFAA, 45681-800ADV) is an analog/addressable
combination carbon monoxide (CO) detector and sounder base for use on and AX-CTL base card Signaling Line
Circuit (SLC).
As a combination unit, each Intelligent CO Detector and Sounder Base can support an additional Axis
AX
intelligent
detector (smoke, heat, or multi-sensor). In addition, if the addition intelligent detector is not installed the Intelligent
CO Detector and Sounder Base can accommodate a blank cover (low profile [45681-292] or high profile [45681-
380] format).
The CO sensor is an electrochemical sensor that is able to detect three levels of carbon monoxide and has a life of
six years.
Program Mode
Carbon Monoxide Levels (PPM)
(Applicable National Standard)
Alarm Response Time
(Time Weighted
Average)
3
70 parts per million (UL 2075 / 2034)
Within 4 hours
150 parts per million (UL 2075 / 2034) Within 50 minutes
400 parts per million (UL 2075 / 2034) Within 15 minutes
The CO sensor is fully supervised and provides a signal for field replacement, once it has reached its end of life
cycle. The Intelligent CO Detector is individually addressed utilizing segments 1-7 of an integral DIP switch.
In addition to the Axis
AX
fire alarm control panel providing an automatic daily test of the Intelligent CO Detector, the
CO detector can be manually tested locally, via an on-board test button, by spraying CO test gas through its outer
edge opening, or by manually initiating a test command from the Axis
AX
fire alarm control panel.
The built-in Sounder Base is capable of providing a temporal 3 (sub-addressed controlled via the optional intelligent
detector), in the event of an alarm event, or temporal 4 (sub-addressed controlled via the CO detector). If both
temporal signals are activated the temporal 3 alarm signal has the highest priority. The built-in Sounder Base
requires a separate regulated 24 VDC supply whether from an Axis
AX
notification appliance circuit (NAC) or from a
listed, supervised, power supply. Synchronization of multiple sounder bases is possible with the use of an optional
MB-SDRT-M synchronization module.
Note: The Intelligent CO Detector and Sounder Base can be configured for “Standalone Detection Only”
(SLC wiring only, no 24 VDC). In this mode of operation, the CO Detector and the additional optional
intelligent detector will be monitored via the Signaling Line Circuit (SLC). However, as there is no 24 VDC
wiring the Sounder Base temporal tones will be inoperable. The built-in Sounder Base will not function in
“Standalone Detection Only” mode.
As previously stated the Intelligent CO Detector and Sounder Base can support an additional Axis
AX
intelligent
detector, this detector is individually addressed via the Sounder Base by a patented address (“XPerT”) card. The
address is quickly and easily set by removing “pips” on the XPerT card according to a chart supplied with each
Intelligent CO Detector and Sounder Base.
The Intelligent CO Detector and Sounder Base is designed as a 6” diameter base which can mounted to a standard
4” octagonal or 4” square electrical box.