156 Sun Server X4-2 Service Manual • May 2014
If you need to connect to the SER MGT port using a cable with either a DB-9 or a
DB-25 connector, follow the pin descriptions in the tables to create a crossover
adapter appropriate for your serial connection.
TABLE: Serial Management Port Signals
Pin Signal Description Pin Signal Description
1 Request to Send 5 Ground
2 Data Terminal Ready 6 Receive Data
3 Transmit Data 7 Data Set Ready
4 Ground 8 Clear to Send
TABLE: RJ-45 to DB-9 Adapter Crossover Wiring Reference
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
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