Specifications

Page 21
FIREFINDER SERIES II INSTALLATION, COMMISSIONING &
OPERATION
4.14 Conventional Zone Board
Under the control of a Slave CPU the Conventional Zone Board provides the interface between it
and the external conventional devices. 16 Conventional zones, with a limit of 32 conventional
detectors can be connected to TB4 to TB1.
Connections
CN1
To 27VDC
CN2
To Slave CPU
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.
+16-
+1-
ZONE
+2-
ZONE
+3-
ZONE
+4-
ZONE
+5-
ZONE
+6-
ZONE
+7-
ZONE
+8-
ZONE
- + -
POWER
ZONEZONE
+15-
ZONE
+14-
ZONE
+13-
ZONE
+12-
ZONE
+11-
ZONE
+10-
ZONE
+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
C34M24
M25
C37
M26
M27
M28
C39
M29
M30
C42
M31
M32
5V
+V
CN1
U2
R1
R7
R4
R5
U1
R8
D16
U11
CN2
RN12
RN6RN3
+
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 D10 D11 D12 D13 D14
D15
U4
D8
D1 D2 D3 D4 D5 D6
D7
C8
C45
C26
R33
C25
C22
R29
C21
RN8
U7
C40
U10
C36
U9
RN11
RN10
C32
C12
RN5
RN4
RN14RN13
RN9
C17
C3
C6
C9
C14
C16 C19 C23
C28 C30
C33 C35 C38 C41 C43
Q2
Q1
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
C11
R18
R2
U3
C46
R56
RN2
RN1
C47
C24
R31
TB3
TB2
TB1
C48
Figure 20: 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.
Protection: Current limited
Maximum number of points per zone: 32
Cable Requirements: No special requirements, 2 Core 1.5mm² to 2.5mm², total resistance must be
less than 50 ohms, maximum length 2000m, maximum core to core capacitance 0.5uF.