Sun Microsystems Netra T5220 - RJ-45 to DB-9 Adapter Crossovers; RJ-45 to DB-25 Adapter Crossovers

A-4 Sun Netra T5220 Server Service Manual • January 2012
If you need to connect to the SERIAL MGT port using a cable with either a DB-9 or a
DB-25 connector, use a supplied adapter to perform the crossovers given for each
connector. The supplied RJ-45 to DB-9 and RJ-45 to DB-25 adapters are wired as
described in
TABLE A-6 and TABLE A-7.
A.3.1.1 RJ-45 to DB-9 Adapter Crossovers
A.3.1.2 RJ-45 to DB-25 Adapter Crossovers
TABLE A-3 RJ-45 to DB-9 Adapter Crossovers
Serial Port (RJ-45 Connector) DB-9 Adapter
Pin Signal Description Pin Signal Description
1 RTS 8 CTS
2 DTR 6 DSR
3 TXD 2 RXD
4 Signal Ground 5 Signal Ground
5 Signal Ground 5 Signal Ground
6 RXD 3 TXD
7 DSR 4 DTR
8 CTS 7 RTS
TABLE A-4 RJ-45 to DB-25 Adapter Crossovers
Serial Port (RJ-45 Connector) DB-25 Adapter
Pin Signal Description Pin Signal Description
1 RTS 5 CTS
2 DTR 6 DSR
3 TXD 3 RXD
4 Signal Ground 7 Signal Ground
5 Signal Ground 7 Signal Ground
6 RXD 2 TXD
7 DSR 20 DTR
8 CTS 4 RTS