Honeywell Midas User Manual page 33

Diagram 4-16. Midas
J4
+supply
INT EXT
NC
J1
NO
11
NC
10
J2
NO
9
NC
J3
NO
EXT INT
-supply
J5
+24 V
COM
MIDAS
Simplified Internal Schematic
External
Customer-Provided
Power Supply
2
+
+
Internal
24 VDC
Power
Loads
-
-
1
to Touchpoint1 4-Wire Connection
®
Relay1
Relay2
Relay3
8
}
7
6
}
5
}
4
3
2
DC
PWR
1
Shielded
ON
Cable
SW
OFF
RJ-45
J4
INT EXT
11
4-20 mA
Controlled
Current Source
10
J5
EXT INT
9
4-17
Midas
touchpoint 1
+
24 VDC
Power Supply
-
touchpoint1
Simplified Internal Schematic
1
+
2
24 VDC
signal
-
3
Gas Detector
®