Honeywell Midas User Manual page 38

Diagram 4-21. Midas
J4
+supply
INT EXT
NC
J1
NO
11
NC
10
J2
NO
9
NC
J3
NO
EXT INT
8
-supply
J5
7
6
5
4
3
2
+24 V
1
COM
MIDAS
Simplified Internal Schematic
J4
INT EXT
2
4-20 mA
+
Controlled
Internal
Current Source
Power
Loads
J5
-
EXT INT
1
to Touchpoint4 3-Wire Sourcing Connection
®
Relay1
Relay2
Relay3
}
}
}
DC
PWR
Shielded Cable
ON
SW
OFF
RJ-45
touchpoint4
11
Simplified Internal Schematic
1
2
10
signal
9
3
4-22
Midas Gas Detector
®
touchpoint 4
+
24 VDC
-