Brooks Firetracker FT128 CIE - 6 Peripheral Devices; COM Loop Units

Technical / Programming Manual
FT128 Rev 2.2
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6 Peripheral Devices
Alarm points, analogue alarm points (detectors, MCP’s, etc.) are connected directly to a
COM loop. Conventional alarm points (detectors, MCP’s etc.) are connected to a Zone
Line Input in an 8 zones expansion board (4580) or a Zone Line Input in a COM loop unit
3361. Programmable inputs can also be used for flow switches etc.
Short Circuit Isolators must be used on the COM loop if more than 40 alarm points are
connected to the COM loop.
I/O Matrix boards are plugged ("piggy back") to an Application board (Zone, Fan, Generic,
etc.), which is connected to the COM loop, refer to chapter “Expansion Boards 458X”, page
22.
Sounders, Strobes, door holders, etc. are connected to the programmable outputs in FT128
(S0-S1, R0
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) and/or to COM loop output units e.g. 3364 / 3361 and/or 8 relays expansion
boards 4581. Addressable sounders (3379 / 4477) are connected directly to the COM loop.
Input devices e.g. timer, external fault, etc. are connected to programmable inputs, i.e. to
input (I0) in FT128 and/or to input units connected to the COM loop e.g. 3361.
Routing equipment (Fire brigade TX / Fault TX) is normally connected to the R0-R1 outputs
in FT128. Also any programmable output can be used.
Remote display units
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are connected to the RS485 interface
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in FT128.
For more information, see the following Sections and the Product Leaflets on our web site:
http://www.brooks.com.au
6.1 COM Loop Units
The COM loop supports up to 255 addressable COM loop units
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for software version ≥
V2.0.x.
Note: Depending on the type and number of units, the total current consumption will vary.
The cable length is dependent on the current consumption and the cable resistance.
See chapter "Current Consumption”, page 168.
The following units can be connected to the COM loop in NORMAL mode (some units can
be used in different modes):
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R0 is normally used to trigger the OWS (if fitted). FT128 termination board also has a relay activated from S1, it can be used
to trigger the OWS or to control magnetic door holders (up to 2 A).
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External Presentation unit 1728 and Alert Annunciation unit 1736
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An optional RS485 transceiver component 4552 is required.
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Conventional detectors can be connected to an 8 zones expansion board 4580 or to the Zone Line Input (Z) on an addressable
I/O unit 3361.