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Fast EtherHub 3500 System User’s Guide
Pin Assignments B-3
Hub’s 9-Pin Serial Port to PC's 9-Pin COM Port
Hub’s 9-Pin Cable Wiring PC's 9-Pin
Serial Port COM Port
1 DCD 1 DCD
2 RXD 2 RXD
3 TXD 3 TXD
4 DTR 4 DTR
5 SGND 5 SGND
6 DSR 6 DSR
7 RTS 7 RTS
8 CTS 8 CTS
9 RI 9 RI
Table B.3 Full-Pin Connection from
Hub’s 9-Pin Serial Port to PC's 9-Pin COM Port
Hub’s 9-Pin Cable Wiring PC's 9-Pin
Serial Port COM Port
1 DCD 1 DCD
2 RXD 2 RXD
3 TXD 3 TXD
4 DTR 4 DTR
5 SGND 5 SGND
6 DSR 6 DSR
7 RTS 7 RTS
8 CTS 8 CTS
9 RI 9 RI
Table B.4 Three-Pin Connection from
Hub’s 9-Pin Serial Port to PC's 9-Pin COM Port