Installation and Reference Guide HP AdvanceStack 100Base-THub-12TX, Hub-12TXM, and Switch Modules 1997-06

HP Hub-12TX/Hub12-TXM Installation and Reference 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 RS-232-C “Null Modem” Cable 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 Minimum Cable Connection from
Hub’s 9-Pin Serial Port to PC’s 9-Pin COM Port