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Documentation Number 232BSS42907 Manual Appendix B: Cable Charts B-5
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
1 (DCD) * <---------- 8
2 (RD) <---------- 3
3 (TD) ----------> 2
4 (DTR) * ----------> 20
5 (GND) <--------> 7
6 (DSR) * <---------- 6
7 (RTS) ----------> 4
8 (CTS) <---------- 5
• - Pins 1, 4, & 6 looped back internally on the
232BSS4
Chart B.8. Ports A - D (DTE) to DCE (Modem) DB9 Connector
232BSS4
Ports A - D (DTE)
DB9 Connector
Signal
Direction
DCE (Modem)
Serial Port
DB9 Connector
1 (DCD) * <---------- 1
2 (RD) <---------- 2
3 (TD) ----------> 3
4 (DTR) * ----------> 4
5 (GND) <--------> 5
6 (DSR) * <---------- 6
7 (RTS) ----------> 7
8 (CTS) <---------- 8
* - Pins 1, 4, & 6 looped back internally on the 232BSS4