National Instruments Interface Device NI PCI-1426 - Manual (Page 23)

Chapter 3 Signal Connections
© National Instruments Corporation 3-3 NI PCI-1426 User Manual
15-pin D-SUB Connector
The 15-pin D-SUB connector connects to general purpose digital I/O. The
general purpose digital I/O available on this connector includes four TTL
I/O lines, two optically isolated input lines, and two RS-422 input lines.
National Instruments provides a generic 15-pin cable assembly kit
(part number 190912-04) that breaks the connector out into 15 color-coded
wires for easy connectivity. Refer to the
15-Pin D-SUB Cable
Specifications section of Appendix A, Cabling , for information about
ordering a cable assembly kit.
If you require twisted pair wiring, you must build a custom cable. Refer to
the connector pin assignments in Figure 3-3 and the
15-Pin D-SUB Cable
Specifications section of Appendix A, Cabling , to build a custom cable for
the 15-pin D-SUB connector.
Figure 3-3. 15-Pin D-SUB Connector Pin Assignments
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
DGND
DGND
DGND
ISO_IN(1)+
ISO_IN(1)–
PHASE_B+
PHASE_B–
TTL_TRIG(0)
TTL_TRIG(1)
TTL_TRIG(2)
TTL_TRIG(3)
ISO_IN(0)+
ISO_IN(0)–
PHASE_A+
PHASE_A–