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HP Vectra Personal Computers and Compatibles
Figures 3-2 through 3-4 give examples of three cables that will work for the
extended interface with hardware handshake. Keep in mind that these
cables should work if your computer's serial interface supports the four
common RS-232C handshake signals as defined by the RS-232C standard.
The four common handshake signals are Data Carrier Detect (DCD), Data
Terminal Ready (DTR), Clear to Send (CTS), and Ready to Send (RTS).
Figure 3-2 shows the schematic of a 25-pin female to 25-pin male cable. The
following HP cables support this configuration:
•
•
In addition to the female-to-male cables with this configuration, a
male-to-male cable 1.2 meters in length is also available:
•
Figure 3-2
25-pin (F) to 25-pin (M) Cable
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
HP 17255D, DB-25(F) to DB-25(M), 1.2 meter
HP 17255F, DB-25(F) to DB-25(M), 1.2 meter, shielded.
HP 17255M, DB-25(M) to DB-25(M), 1.2 meter
Programming Over RS-232C
Cable Examples
3–7
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