TDS 200-Series Extension Module Instructions
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Appendix B: Comparing GPIB and RS-232
The following table provides an in-depth comparison of the GPIB
and RS-232 interfaces. You should select the interface that best
meets your requirements.
Operating Attribute GPIB RS-232
Cable IEEE-488 Std. 9-wire
Data flow control Hardware, 3-wire hand-
shake
Flagging:
soft (XON/XOFF),
hard (RTS/CTS)
Data format 8-bit parallel 8-bit serial
Interface control Operator low-level con-
trol message
None
Interface messages Most IEEE-488 Std. Device clear using a
break signal
Interrupts reported Service requests, status
and event code
None, must be polled for
status
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