Brooks Firetracker FT128 CIE - Gaseous Extinguishing System Control Module; Overview; Display Board (SUB929) & Decal

Technical / Programming Manual
FT128 Rev 2.2
46
5.5 Gaseous extinguishing system control module
5.5.1 Overview
The gaseous extinguishing system control module is provided for use as an option in
FT128. The module comprises the following:
 Control Board (SUB928) with software for CIE interface.
 Display Board (SUB929)
 CIE interface board (SUB943).
 Front panel decal with interconnection cable
The gaseous extinguishing system provides outputs to the following Brooks gas ancillary
equipment:
 A series of Brooks Warning Signs
 Brooks Local Control Station (LCS)
 Voice / Tone Electronic Sounder
 Dual Strobe Module
The control module combined with other Brooks system components is designed to provide
the monitoring and control functions of a complete gaseous extinguishing system that
meets the requirements of the relevant clauses 7.1 to 7.6 of the Australian Standard
AS4214-2002 (including amendment 1). For more details, refer to FT2GAS Operation /
Technical manual MA400.
The control module provides the following inputs / outputs:
 Fully supervised gas release 24VDC output rated @ 5A maximum.
 Fully supervised input circuits e.g. gas lock-off valve input, manual release input
and gas discharged sensor input.
 Fully supervised system warning sign 24VDC output rated @ 0.5A maximum.
 Fully supervised 2 wire system 24VDC output for level 1 and level 2 alarm to Brooks
warning signs (alarm 1 [+/-] & alarm 2 [-/+]) rated @ 3A maximum.
 Gas release clean-contact relay output rated @ 2A maximum.
 Gas Fault clean-contact relay output rated @ 2A maximum.
 Gas Isolate clean-contact relay output rated @ 2A maximum.
 Four-wire interface for Local Control Station (LCS). Both the local gas isolate
control and the local gas release control are fully supervised for open and short
circuit faults.
 Adjustable gas release timer, set via a built-in DIP switch.
Note: Additional power supply and PSU supervision board must be used to power the
gaseous extinguishing system. The current rating above is the maximum current capacity
of the outputs, a power supply and battery calculations of the additional PSU must be
performed to ensure that the power supply capacity is sufficient to run the system in full
alarm condition without exceeding the maximum current rating of the power supply.
5.5.2 Display board (SUB929) & decal
The front decal of the gaseous extinguishing system is shown in Figure 21 below. The
display board SUB929 is mounted on the inner door behind the front decal.
All LED indicators on the front display are covered by a polycarbonate decal clearly labelled
with their functions.