HP 7475a Operation And Interconnection Manual page 87

Introduction
The RS·232·C i n terface is a sta n dard seria l i n terface compati bl e with
many computers a n d te n n i n a l s . This appen d ix provi d e s a summar y of
RS·232·C in te rface spec ifi cat i on s in cl ud in g pin allocatio n s a n d cable
schemat i cs .
RS-232-C Pin Allocations
The p l ott e r in te rfac e s to th e RS·232·C comm un icatio n s lin es through a
sta n dard 25 ·pin fema l e connector . Conn ector pin allocatio n s ar e iden ti·
fi ed an d described in the followi n g tab l e .
Wire/Signal Name
Protec ti ve Gro un d
Tran smitted Data
Received Data
Reque st to S e n d
Clear to S e n d
Data Set R e ady
Signa l G ro u n d
Data Carrier D e t e ct
S eco n dary Tra n smit Da t a "
S econ dar y Re c eive Data "
Data Tenninal Read y
are
'Pins 14 and 16
configurations.
RS-232-C/CCITT V.24
Interface Information
Pin #
1
2
3
4
5
6
7
8
14
16
20
wired only in
the Y-cable (Part No. HP 17455A)
Appendix
RS-232-C CCITT Y.24
AA 101
103
BA
104
BB
105
CA
CB 106
107
CC
AB 102
CF 109
118
S BA
119
S BB
108 .2
C D
used in
RS-232-C INTERFACING
A
eavesdrop
A·1