Table 17. Digital I/O Connector 1 Pin Descriptions (Continued)
Pin Number
Signal
Description
9
V
ISO
Isolated power voltage reference output
10
Iso In 4
Isolated input
11
Iso In 5
Isolated input
12
NC
No connection
13
TTL 5
Bidirectional TTL I/O
14
TTL 7
Bidirectional TTL I/O
15
Iso Out 5
Isolated output
16
C
ISO
Common for isolated inputs and outputs
17
C
ISO
Common for isolated inputs and outputs
Table 18. Digital I/O Connector 2 Pin Descriptions
Pin Number
Signal
Description
1
Iso In 6
Isolated Input
2
NC
No connection
3
GND
Ground for TTL and differential I/O
4
Diff 0+
Bidirectional RS-422+/Quadrature Encoder A+
5
Diff 1+
Bidirectional RS-422+/Quadrature Encoder B+
6
GND
Ground for TTL and differential I/O
7
Iso Out 6
Isolated output
8
Iso Out 7
Isolated output
9
V
ISO
Isolated power voltage reference output
10
Iso In 7
Isolated input
11
NC
No connection
12
NC
No connection
13
Diff 0-
Bidirectional RS-422+/Quadrature Encoder A-
14
Diff 1-
Bidirectional RS-422+/Quadrature Encoder B-
15
NC
No connection
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