Specifications

Page 42
FIREFINDER SERIES II INSTALLATION, COMMISSIONING &
OPERATION
11.3 16/16 Input / Output Board (302-672)
The Input / Output Board is connected to the slave CPU via CN1 and acts as the interface between
the Slave CPU, 8 Way Relay Board and the 16 Way Opto Input Board.
Dependant on the panel configuration a maximum of 8 Input / Output boards can be daisy chained
together.
TO 8 WAY RELAY BOARDS
TO 16 WAY OPTO
INPUT BOARD
TO CONTROL IN OF
NEXT
INPUT / OUTPUT BOARD
OR
FAN CONTROL BOARD
MAXIMUM OF 8
BOARDS PER
SLAVE CPU
+27V
IN
OUT
CN2
CONTROL OUT
302-6720 1/98
POWER
CTRL
CN3 I/P 1-16
CN4 O/P 9-16
IN
CN5 O/P 1-8
CTRL
OUT
U2
U7
CN7
CN6
0V +V
CN2
+5V
CN1
U8
U1
U4
U3
U5
U6
+
-
+
-
1 2
U9
TO CN1 OF THE
SLAVE CPU
(302-6690)
Figure 54: 16 / 16 Input / Output Board
11.4 8 Way Relay Board (302-6760/1)
Relay Outputs: Each 8 Way Relay Board 302-676 is fitted with either eight 1A, RL1 to 8, (302-6760)
or 5A, RL9 to 16, (302-6761) relays with voltage free contacts which can be used for control (e.g.
releasing doors) or monitoring (e.g. driving indicators, door open / closed) purposes.
CN1
TB2
TB1
RL9
N/O
C
N/C
RL10
N/O
C
N/C
RL16
N/O
C
N/C
RL15
N/O
C
N/C
RL14
N/O
C
N/C
RL13
N/O
C
N/C
RL12
N/O
C
N/C
RL11
N/O
C
N/C
O/P 1
N/CCN/0
302-676x
O/P 2
N/0 C N/C
O/P 3
N/0 C N/C
O/P 4
N/0 C N/C
O/P 5
N/0 C N/C
O/P 6
N/0 C N/C
O/P 7
N/0 C N/C
O/P 8
N/0 C N/C
TO CN4
OR CN5
OR THE
1/0 BOARD
302-6720
RL1
RL2
RL3 RL4 RL5 RL6
RL7 RL8
5 Amp Version
Legend
1 Amp Version
RL9
N/O
C
N/C
RL1
Figure 55: 8 Way Relay Board with 1A Relays Fitted