Specifications

Page 27
FIREFINDER SERIES II INSTALLATION, COMMISSIONING &
OPERATION
5.8 External Control Interface Board
The External Control Interface Board provides interfacing for 8 external 0V control inputs that are
configured as outlined in the table below.
The FACP is programmed to recognise the individual inputs as listed and initiates the appropriate
response.
0V control is configured for a normally open contact for each input with the facility to monitor whether
or not the controls are enabled.
Link1 (LK1) is fitted when the control “Enable” switch is not fitted to the FACP
Configuration Cabling:
Input
TB
Purpose
Input
TB
Purpose
-
1/1
0Volts
-
2/1
0Volts
1
1/2
ALERT
5
2/2
EXTERNAL FAULT
2
1/3
EVACUATE
6
2/3
SILENCE BUZZER
3
1/4
SILENCE ALARMS
7
2/4
CLASS CHANGE
4
1/5
SYSTEM RESET
8
2/5
CONTROLS ENABLED
N1236
BRD85ECI1-A
To CN1 Main Control Card
To CN6 Main Control Card
0V 27V 0V (OUT)
0V 27V 0V (IN)
GND
0V
INPUTS 1 TO 8
CN1
U6
TB1
TB3
TB2
LK1
CN6
CN3
0V 1 2 3 4
0V 5 6 7 8
LK1 is fitted when the Control
Enable switch is not fitted
To Input 1 - 8
Input Configuration
0V
CN2
Figure 27: External Control Interface Board Layout and Cabling