Figure 3 - HWI-MI-230 Detail
1
2
3
4
ADDRESS
+
-
COM +15 MUX MUX
ADDRESS
1
2
3
4
+
-
COM +15 MUX MUX
24 VAC
Input
Power
Indicator
LED
+ -
0.5–1.5mm
2
(16–24
AWG) Wiring
Manual
Override
Switch
Module Har-
ness Con-
nector
Processor
Communication
Link
Module Interface
Communication LED
1
2
3
4
MI Heartbeat LED
ADDRESS
Processor
COM +15 MUX MUX
Communication LED
MUX
4 -
3 - MUX
1 - COM
3
4
LT-1 Terminator (if needed)
NOTE: The LT-1 should be
installed on the LAST Mod-
ule Interface (furthest from
the processor).
To HWI Processor or
other HWI-MI-230
Module Interfaces
3