Table c-2. 68-pin accessories, Signal descriptions – National Instruments 653X User Manual
Page 100
Appendix C
Connecting Signals with Accessories
© National Instruments Corporation
C-3
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