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Table c-2. 68-pin accessories, Signal descriptions – National Instruments 653X User Manual

Page 100

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Appendix C

Connecting Signals with Accessories

© National Instruments Corporation

C-3

653X User Manual

Note

In Figure C-1, the * indicates that you can reverse the pin assignments of the ACK1

(STARTTIG1) and REQ1 pins, or the ACK2 (STARTTIG2) and REQ2 pins. To do this, set
the

ACK-REQ Exchange

attribute to ON in the DIO Parameter VI in LabVIEW or in

set_DAQ_Device_Info

in NI-DAQ. This allows you to perform handshaking I/O

between two 653X devices using an SH-68-68-D1 cable.

Use Table C-2 to find the accessories designed for connecting signals to
your 653X device.

Signal Descriptions

Use Table C-3 to find the function for each signal, which is based on the
mode and protocol you are using. All the signals on the 653X device are
referenced to the GND lines.

Table C-2. 68-Pin Accessories

Device

Shielded Cable

Ribbon Cable

Cable Adapter

PCI/PXI/AT/
Compact PCI

SHC68-68-D1—female 68-pin
SCXI connectors on both ends
of the cable

N/A

N/A

DAQCard-6533
for PCMCIA

PSHR68-68-D1 and
PSHR68-68M

PR68-68F

N/A