Chart 5. Ibm Pc Db25 Connector To Ports A - H (Dte; Chart 6. Ibm Pc Db9 Connector To Ports A - H (Dte - B&B Electronics 8 PORT SMART SWITCH CE 232D4SS8 User Manual

Chart 5. IBM PC DB25 Connector to Ports A - H (DTE)

Master port configured as a DCE port.
IBM PC
Serial Port
DB25 Connector
2
3
4
5
6
7
8
20
* Pins are tied together inside the 232D4SS8 and share the same
input.

Chart 6. IBM PC DB9 Connector to Ports A - H (DTE)

Master port configured as a DCE port.
IBM PC
Serial Port
DB9 Connector
2
3
4
5
6
7
8
* Pins 6 & 8 are tied together inside the 232D4SS8 and share
the same input.
232D4SS84502 Manual
Signal Ports A - H (DTE)
Direction
----------->
<-----------
----------->
<----------
<----------
<--------->
<-----------
----------->
Signal Ports A - H (DTE)
Direction
<-----------
----------->
----------->
<--------->
<-----------
----------->
<-----------
Appendix B
232D4SS8
DB25 Connector
3
2
5
4
6*
7
8*
20
232D4SS8
DB25 Connector
2
3
6*
7
20
5
4
B-3