National Instruments IMAQ PCI-1426, User Manual

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Chapter 4 Signal Connections
© National Instruments Corporation 4-3 IMAQ PCI-1426 User Manual
If you require twisted pair wiring, you must build a custom cable. Refer to
the connector pin assignments in Figure 4-3 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 4-3. 15-pin D-SUB Connector Pin Assignments
Connector Signal Connection Descriptions
Table 4-1 describes the MDR 26-pin and 15-pin D-SUB signal
connections.
Table 4-1. I/O Connector Signals
Signal Name Description
TTL_TRIG<3..0> TTL external triggers/DIO lines (I/O).
DGND A direct connection to digital GND on the IMAQ 1426.
ISO_IN<1..0>± 30 V isolated input only lines.
Use these lines instead of, not in addition to, TTL_TRIG<1..0>.
RS422_IN<1..0>± RS-422 signalling standard input only lines.
Use these lines instead of, not in addition to, TTL_TRIG<3..2>.
X<3..0>± LVDS Base configuration data and enable signals from the camera to the
acquisition device.
XCLK± Transmission clock on the Base configuration chip for Camera Link
communication between the acquisition device and the camera.
SerTC± Serial transmission to the camera from the image acquisition device.
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
DGND
DGND
DGND
ISO_IN(1)+
ISO_IN(1)–
RS422_IN(1)+
RS422_IN(1)–
TTL_TRIG(0)
TTL_TRIG(1)
TTL_TRIG(2)
TTL_TRIG(3)
ISO_IN(0)+
ISO_IN(0)–
RS422_IN(0)+
RS422_IN(0)–