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Appendix A
Interface/Power Cable Pin Assignments
For
those
of
you
who want to use
an extension
or
adapter
cable
between
our
interface
cable and
the
computer,
the table below may
be helpful. It identifies the pin
assignments of
the
25-pin
D
connector
terminating our
interface/power cable:
Pin
Wire
Name
Description
I
ground
protective
ground
2
RXD
receives data from host
3
TXD
transmits RS-232-C data to host
1]
RTS
Request To
Send
CTS
Clear
To
Send
6
DSR
Data Set Ready
7
ground
signal ground
20
DTR
Data Terminal Ready
Appendix B
9-pin-to-25-pin Serial Adapter Wiring Diagram
The table below identifies the wiring of the Summagraphics 9-pin-
to-25-pin
serial adapter.
If
you're
using an
adapter other than
the
one we
supply,
ensure that
it
has the
same
specifications.
9-Pin Female Connector
25-Pin Male Connector
-------------8
2 - - - - - - - - - - - 3
~ - - - - - - - - - - - - 2
4 - - - - - - - - - - - 2 0
5
7
6
6
7
4
8
5
9
22
12
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