Page 20
FIREFINDER SERIES II
INSTALLATION,
COMMISSIONING
&
OPERATION
4.15 Conventional Zone Board (302-671)
Under the control of a Slave CPU the Conventional Zone Board provides the interface between it
and the external conventional devices. 16 Conventional zones can be connected to TB4 to TB1, with
a limit of 32 conventional detectors can be connected to TB4 to TB1.
Connections
CN1
To 27VDC
CN2
To 302-699
TB4 / 5
To Conventional Detectors
TB4
TB3
TB2
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
3K3
EOL
To 27VDC Regulated
Output of the Brigade /
PSU Monitor Board
MCP
4K7
TB1
To Slave
CPU
Zone 1
_
+
Zone 2
Zone 4
Zone 5
Zone 3
_
+
_
+
_
+
Zone 8
Zone 9
Zone 10
Zone 7
Zone 6
_
+
_
+
_
+
_
+
_
+
_ +
_
+
_
+
_
+
_ +
_
+
_
+
Zone 11
Zone 12
Zone 13
Zone 14
Zone 15
Zone 16
L1
L1
L2
- R
IN
OUT
L1
L1
L2
- R
IN
OUT
L1
L1
L2
- R
IN
OUT
E
O
L
L2
L2
L2
All un-used zone
connections MUST
be terminated in an
EOL resistor of 3K3
as shown
Alarm Zone Facilities ( AZF ) Parameters
Maximum Line Voltage: The maximum line
voltage is limited to the system voltage.
With a nominal battery voltage of 27V,
system voltage and therefore open circuit
voltage would be approximately 26.4V.
+
1
6
-
+
1
-
Z
O
N
E
+
2
-
Z
O
N
E
+
3
-
Z
O
N
E
+
4
-
Z
O
N
E
+
5
-
Z
O
N
E
+
6
-
Z
O
N
E
+
7
-
Z
O
N
E
+
8
-
Z
O
N
E
-
+
-
P O W ER
Z
O
N
E
Z
O
N
E
+
1
5
-
Z
O
N
E
+
1
4
-
Z
O
N
E
+
1
3
-
Z
O
N
E
+
1
2
-
Z
O
N
E
+
1
1
-
Z
O
N
E
+
1
0
-
Z
O
N
E
+
9
-
302-671B
U5
U6
U8
RN7
M15
M14
0V
M1
M2
C2
M3
M4
C4
M5
M6
C7
M7
M8
C10
M9
M10
C13
M11
M12
C15
M13
C18
M16
C20
C27
M17
M18
C29
M19
M20
C31
M21
M22
M23
C34
M24
M25
C37
M26
M27
M28
C39
M29
M30
C42
M31
M32
5V
+V
CN1
U2
R1
R7
R4
R5
U1
R8
D16
U
1
1
CN2
R
N
12
RN6
RN3
+
C5
C1
ZD16
ZD15
ZD14
ZD13
ZD12
ZD11
ZD10
ZD9
R55
R52
R49
R46
R43
R40
R36
ZD8
ZD7
ZD6
ZD4
ZD5
ZD2
ZD3
ZD1
R27
R24
R21
R15
R12
R9
R57
R54
R51
R48
R45
R42
R38
R53
R50
R47
R44
R41
R37
R32
R35
R30
R28
R26
R25
R23
R22
R20
R17
R19
R16
R14
R13
R11
R10
R3
R6
TB4
D9
D
1
0
D
1
1
D
1
2
D
1
3
D
1
4
D
1
5
U4
D8
D1
D2
D3
D4
D5
D6
D7
C8
C
4
5
C
2
6
R
3
3
C25
C
2
2
R
2
9
C21
RN8
U7
C
4
0
U
1
0
C
3
6
U9
RN11
RN10
C
3
2
C
1
2
RN5
RN4
RN14
RN13
RN9
C
1
7
C3
C6
C9
C
1
4
C
1
6
C
1
9
C
2
3
C
2
8
C
3
0
C
3
3
C
3
5
C
3
8
C
4
1
C
4
3
Q2
Q1
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
C
1
1
R18
R2
U3
C46
R56
RN2
RN1
C47
C
2
4
R31
TB3
TB2
TB1
C48
Figure 24: Conventional Board Layout
Alarm Zone Facilities (AZF) Parameters
Maximum Line Voltage:
The maximum line voltage is limited to the system voltage. With a nominal
battery voltage of 27V, system voltage and therefore open circuit voltage would be approximately
26.4V.