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232D4SS84502 Manual Appendix B B-1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
APPENDIX B: Cable Charts
These charts indicate some common cable wiring based on the
DCE/DTE configuration of the Master Port. Refer to the Port
Configuration section of this manual for information on Master Port
configurations.
Chart 1. IBM PC DB25 Connector to Master Port
Master port configured as a DCE port.
IBM PC
Serial Port
DB25 Connector
Signal
Direction
232D4SS8
Master Port (DCE)
DB25 Connector
2 -----------> 2
3 <----------- 3
4 -----------> 4
5 <----------- 5
6 <----------- 6*
7 <---------> 7
8 <----------- 8*
20 -----------> 20
* Pins 6 & 8 are tied together inside the 232D4SS8 and share the
same output.
Chart 2. IBM PC DB9 Connector to Master Port
Master port configured as a DCE port.
IBM PC
Serial Port
DB9 Connector
Signal
Direction
232D4SS8
Master Port (DCE)
DB25 Connector
1 <----------- 8*
2 <----------- 3
3 -----------> 2
4 -----------> 20
5 <---------> 7
6 <----------- 6*
7 -----------> 4
8 <----------- 5
* Pins 6 & 8 are tied together inside the 232D4SS8 and share
the same output.