Chart B.8. Portsa - D (Dte) To Dce (Modem ) Db9 Connector - Advantech B+B SmartWorx 232BSS4 Manual

2 (RD)
3 (TD)
4 (DTR) *
5 (GND)
6 (DSR) *
7 (RTS)
8 (CTS)
• - 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
1 (DCD) *
2 (RD)
3 (TD)
4 (DTR) *
5 (GND)
6 (DSR) *
7 (RTS)
8 (CTS)
* - Pins 1, 4, & 6 looped back internally on the 232BSS4
Documentation Number 232BSS4 0812 Manual
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Signal
Direction DB9 Connector
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<----------
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<-------->
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Appendix B: Cable Charts
3
2
20
7
6
4
5
DCE (Modem)
Serial Port
1
2
3
4
5
6
7
8
B-5