Ampac FireFinder PLUS - 12.4 8 Zone Conventional Board

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12.4 8 Zone Conventional Board
This board (BRD43EZC) has 8 conventional zones. Up to 999 zones max may be configured.
The zones may be used in panel programming and Input / Output programming.
 Note 1: Each Zone circuit MUST be terminated with either a;
➢ 3k3 resistor ( Default )
➢ 10uF 50VDC bipolar capacitor
➢ 4k7 resistor
➢ 6k8 resistor, OR
➢ 10k resistor
+ -
Z1
EOL
TB1
CN2
CN3
RS485 Control
Comms In
RS485 Control
Comms Out
CN4 CN5
Fit EOL Termination
Link 1 if Last Module
on Comms Bus
1 2 3 4
ON
SW1
ON
Address SW
(see Note 3)
To Zones 1 to 4 + / - To Zones 5 to 8 + / -
27V IN
+
-
27V OUT
+ - -+ -+ -+ -+ -+ -+ -+
Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8
TB1
TB2
To Zones 5 to 8 + / -To Zones 1 to 4 + / -
PRESS HERE
TO BREAK
FIRE
ALARM
Maximium of 32
devices per Zone
(See Note 2)
End Of Line
(See Note 1)
EOLEOL EOL EOL EOL EOL EOL
+ -
Z3
+ -
Z2
+ -
Z4
+ -
Z5
TB2
+ -
Z7
+ -
Z6
+ -
Z8
Figure 82: 8 Zone Conventional Board
Connections
Terminal/s
Function
TB1&2 Terminals 1, 3, 5, 7, 9, 11, 13, 15
TB1&2 Terminals 2, 4, 6, 8, 10, 12, 14, 16
ZONES 1 to 8 +ve
ZONES 1 to 8 -ve
 Note 2: If Diode Bases are used ONLY the 10uF CAP can be used.
 Note 3: See Section 17 for Addressing Details (SW1)
 Note 4: Short circuits on the Zone is a “Fault” condition on the FACP NOT an “Alarm”
 Note 5: Hard contact MCP’s will require a 470Ω to 680Ω series activation resistor to generate an
alarm condition and to avoid hard contact MCPS putting the Zone into Short circuit fault”