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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 653
X
devices using an SH-68-68-D1 cable.
Use Table C-2 to find the accessories designed for connecting signals to
your 653
X
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 653
X
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