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TDS1000/2000-Series Digital Oscilloscope User Manual
179
Appendix E: GPIB and RS-232 Interfaces
The next table provides an in-de pth comparison of the GPIB and
RS-232 interfaces. You should select the interface that best meets
your requirements.
GPIB and RS-232 interface comparison
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