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Introduction
This chapter describes the interface functions and some general
concepts of RS-232-C. The RS-232-C interface on this instrument
is Hewlett-Packard’s implementation of EIA Recommended Standard
RS-232-C, Interface Between Data Terminal Equipment and Data
Communications Equipment Employing Serial Binary Data
Interchange. With this interface, data is sent one bit at a time, and
characters are not synchronized with preceding or subsequent data
characters. Each character is sent as a complete entity without
relationship to other events.
3–2