Figure 5-12. Ibm At To Pc Serial Port Cable - Brainboxes PS-307 User Manual

PSI BOX Reference

Figure 5-12. IBM AT To PC Serial Port Cable.

________________________________________
IBM AT SERIAL PORT Side _______________________
____________________________ USE 9 Pin Female D Connector
______ SIGNAL ___ PIN
GROUND 5
DCD 1
RXD 2
TXD 3
DTR 4
DSR 6
RTS 7
CTS 8
RI 9
This cable makes the IBM AT 9 pin serial port look like
the IBM PC 25 pin serial port. It is NOT a cross over cable! To
make this work with the PSI Box you will also require the cable
in Figure 5-12.
The Cable in Figure 5-13 will do the job by itself or else
use BOTH cable Figure 5-12 with cable Figure 5-14
Page 48
RS232 Port
IBM PC SERIAL PORT Side. ________________________
_______________________ 25 Pin Male D Connector
___ PIN ______ SIGNAL
1 GROUND
7 GROUND
8 DCD
3 RXD
2 TXD
20 DTR
6 DSR
4 RTS
5 CTS
22 Ring Indicator.
Chapter 5