Honeywell Midas User Manual page 32

Diagram 4-15. 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 5704 3-Wire Sourcing Connection
®
Relay1
Relay2
Relay3
}
}
}
DC
PWR
Shielded Cable
ON
SW
OFF
Note:
RJ-45 The above schematic shows the MIDAS connected
to channel 1 on the 5704 card. The terminal numbers
for all four channels are as follows:
MIDAS Function
Midas Terminal Number
System 57 Function
Color in this figure
5704 Channel 1 Terminal
5704 Channel 2 Terminal
+
24
5704 Channel 3 Terminal
11
VDC
5704 Channel 4 Terminal
-
10
Relay/Field
Interface Card
17
9
19
4-16
Midas Gas Detector
®
Sieger System 57
Quad Relay Interface Card
05704-A-0121
with
4 Channel Control Card
05704-A-0145
(01) 17
(NS) 19
+
24
VDC
-
Analog Out Common
10 1
01 NS
Blue Black
17 19
18 20
23 25
24 26
System 57
5704 Control Card
Sense
Resistor