Gas Detection System GDS-24-2/4 User and Installation Manual
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18
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30
J7.1
BAT+
Positive Battery charging connection to battery
J7.2
BAT-
Battery charging ground connection to battery
J7.3
B-
Battery charging ground from power supply
J7.4
B+
Positive Battery charging voltage from power
supply
Table 5: CPU BOARD BOTTOM J2 AND J7 CONNECTIONS
The pin out of J3, J4 and J12 is given below.
NO
C
NC
NO
C
NC
NO
C
NC
Alarm
Valve Control
Fault / RST
Figure 10: J4 Pin-out
Siren
Zone - 4
Zone – 3
Zone – 2
Zone - 1
-
+
-
+
-
+
-
+
-
+
Figure 11: J3 Pin-out
24V DC
+
-
Figure 12: J12 Pin-out
Connector
No.
Connection Name
Description
J12.1
24VDC (+)
+24V DC Output for detector supply
J12.2
24VDC (-)
Ground
J3.1
Zone 1 +
Positive connection for Zone 1
J3.2
Zone 1 -
Negative connection for Zone 1
J3.3
Zone 2 +
Positive connection for Zone 2
J3.4
Zone 2 -
Negative connection for Zone 2
J3.5
Zone 3 +
Positive connection for l Zone 3
J3.6
Zone 3 -
Negative connection for Zone 3
J3.7
Zone 4 +
Positive connection for Zone 4
J3.8
Zone 4 -
Negative connection for Zone 4
J3.9
Siren +
24V DC connection for Conventional sounder/siren
J3.10
Siren -
Ground connection for Conventional sounder/siren
J4.1
Alarm – NO
Normally Open Contact of Alarm Relay
J4.2
Alarm – C
Common Contact of Alarm Relay
J4.3
Alarm – NC
Normally Closed Contact of Alarm Relay
J4.4
Valve Control – NO
Normally Open Contact of Valve Control Relay
J4.5
Valve Control – C
Common Contact of Valve Control Relay
