Andover Controls DI-8 - Page 72

66 Andover Controls
The Power connection between the DIO-20 and the DM-20 is via a two-conductor cable
assembly as shown:
Using the DM-20/DIO-20 Combination
The DIO-20 provides the DM-20 with a real-world interface to its I/O channels. Solid-state
input modules (on the DIO-20) provide interface circuitry to a variety of signals. These
modules convert their signals to digital levels for input to the DM-20.
Similarly, solid-state output modules (on the DIO-20) allow the digital levels of the DM-20
to interface to a variety of signals.
In both cases, the I/O points are set up to have an Electrical Type of
Digital
no matter
what type of solid-state module is installed.
For more information on the DIO-20, refer to its User Manual.
DIO-20
DM-20 to DIO-20
DC Power Connection
DM-20
+24 VDC
+24 V Return
+
-
12
24VDC @ .36 Amps
TO DI0-20
1
2 3 4 5 6 7 8 9 10 11 12 13
I/O
I/O
I/O I/O I/O I/O I/O I/O I/O I/O
I/O
I/O I/O
14
15 16 17 18 19 20
I/O
I/O
I/O I/O I/O I/O I/O
D CONNECTOR
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
DM-20
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