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Appendix B
Interfacing to a Serial Device
© National Instruments Corp.
B-3
GPIB-232CV User Manual
To interface other products to the GPIB-232CV serial port, consult your
manual on that serial device to determine if the device is configured as a
DTE or DCE. Also, notice how the control lines are used and whether they
must be driven for the serial port to operate. The GPIB-232CV CTS signal
is configured so that it must be asserted for the GPIB-232CV to transmit
data.
Interfacing the GPIB-232CV to a DCE
A correctly configured DTE-to-DCE interface is wired straight across:
GPIB-232CV pin 2 to DCE pin 2, pin 3 to pin 3, and so forth. Wired in this
manner, the GPIB-232CV can then interact to function properly on buffer
full conditions (handshake). Figure B-1 shows a properly configured
DTE-to-DCE cable.
1
2
3
7
5
20
4
1
2
3
7
5
20
4
Figure B-1. DTE-to-DCE Cable Configuration
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