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
B-4 Pin Assignments
Hub’s 9-Pin Serial Port to PC’s 25-Pin DTE Port
Hub’s 9-Pin Serial Port
Cable Wiring
PC’s 25-Pin DTE Port
1 DCD 4 RTS
2 RXD 3 TXD
3 TXD 2 RXD
4 DTR 6 DSR
5 SGND 7 SGND
6 DSR 20 DTR
7 RTS 5 CTS
8 CTS 8 DCD
9 RI 22RI
Table B.5 Full-Pin Connection from
Hub’s 9-Pin Serial Port to PC’s 25-Pin DTE Port
Hub’s 9-Pin Serial Port
Cable Wiring
PC’s 25-Pin DTE Port
1 DCD 4 RTS
2 RXD 3 TXD
3 TXD 2 RXD
4 DTR 6 DSR
5 SGND 7 SGND
6 DSR 20 DTR
7 RTS 5 CTS
8 CTS 8 DCD
9 RI 22RI
Table B.6 Three-Pin Connection from
Hub’s 9-Pin Serial Port to PC’s 25-Pin DTE Port