User`s guide

Pinouts
22 Adept Peripherals User’s Guide, Rev A
In the following figure, Example 1 shows inputs 1001 to 1003 with a negative common, Example 2
shows inputs 1004 to 1006 with a positive common, and Example 3 shows inputs 1007 and 1008
with independent power supplies (no common).
NOTE: These are examples. Either method can be used on any channel.
Figure 4-3. Differential Digital Inputs, 1001 through 1008
Customer power
supply
Example 1
Example 2
Example 3
Customer power
supply
Input 1001
Input 1002
Input 1003
Input 1004
Input 1005
Input 1006
Input 1007
Input 1008
+
–
+
–
+
–
Adept-Supplied Equipment Customer-Supplied Equipment
(Typical Examples)
(equivalent circuit)
19
20
18
15
16
13
14
44
45
42
43
40
41
38
39
H
L
H
L
+
+
H
L
H
L
H
L
H
L
H
L
H
L
Connector on I/O Card - Differential Inputs
Sourcing
Sinking
17
+
–