Owner's Manual
BARFS-1 Rev 2.1.1
19 of 50
4.3
Main Control Module
BARFS-1 main control module is mounted on the rear of the enclosure and has
screw terminals for all the field wiring termination, power connection and display
modules wiring.
Figure 8 shows the PCB layout and jumper setting for alarm priority selection and
address setting if additional remote keypad required.
Figure 8 BARFS-1 Main and termination board
4.3.1
Alarm Priority
Brooks BARFS-1 has a distinctive feature, it can distinguish between smoke
detection and heat detection which enables the system to respond differently to the
type of detection. The alarm priority is set in the main control module using JP1 to
respond to smoke alarm (priority 2) as a local warning or to heat alarms and manual
activation (priority 1) as a full alarm condition.
The priority on the main control module is selected using jumper link JP1 on the PCB
as follow:
Priority P1 only, position “P1>P2” or Common priority (P1 & P2), position “P1=P2”
In order for the priority alarm function to operate properly, the priority on the
smoke/heat alarm interface card must be selected to send the alarm priority. When
an alarm is activated, the interface card inside smoke alarm, heat alarm, or Input /
output card (used for MCP, flow switch, etc) will send priority 1 alarm (P1) or priority
2 alarm (P2) depending on the jumper link setting in these cards.
Heat alarms and manual activation (sprinkler flow switch, manual call point, etc) have
priority 1 while smoke alarms have priority 2. The main control module can be
configured to respond to P1 alarms only or responds to both P1 & P2 alarms.
Priority “P1 alarm” means all the ancillary devices such as strobes, alarm relays or
vibration pads will only activate on P1 alarms while P2 alarms (smoke alarms) do
not activate the ancillary devices. C
ommon priority “P1 & P2” means the ancillary
