B&B Electronics Port Expander 232PE - Manual (Page 19)

232PE3095 Manual Appendix A A-5
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 434-7094
Chart 7. IBM PC DB25 Connector to Ports A - D (DTE)
Master port of 232XSS configured as a DTE port with a
modem connected (see Chart 3).
IBM PC
Serial Port
DB25 Connector
Signal
Direction
232PE
Ports A - D (DTE)
DB25 Connector
2 -----------> 3
3 <----------- 2
4 -----------> 5
5 <----------- 4
6 <---- ----> 6*
7 <---------> 7
8 <----------- 20
20 -----------> 6*
* Pins 6 & 8 are tied together inside the 232PE and share the
same input.
Chart 8. IBM PC DB9 Connector to Ports A - D(DTE)
Master port of 232XSS configured as a DTE port with a modem
connected (see Chart 3).
IBM PC
Serial Port
DB9 Connector
Signal
Direction
232PE
Ports A - D (DTE)
DB25 Connector
3 -----------> 3
2 <----------- 2
7 -----------> 5
8 <----------- 4
6 <---- ----> 6*
5 <---------> 7
1 <----------- 20
4 -----------> 6*
* Pins 6 & 8 are tied together inside the 232PE and share the
same input.