Specifications

Analog Input Modules
31007715 6/2008 105
The analog returns (pin 4) for each channel are internally connected—therefore
there is no channel-to-channel isolation.
Sample
Wiring Diagrams
The following field wiring example shows how two isolated single-ended analog
sensors can be wired to the STB ACI 1225 module. An external power supply is
required to power the sensors:
2 inputs from sensor 1 (top) and sensor 2 (bottom)
4 returns from input 1 (top) and input 2 (bottom)
6 field power return (to the module) field power return (to the module)
Pin Top Connections Bottom Connections
2
4
2
4
I
+
-
I
+
-
-
+
FE
FE
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