Sun Microsystems Netra 240 - RJ-45 to DB-25 Adapter Crossovers; Serial Port (10101); FIGURE B-4 Serial Port (10101) Pin Numbering; TABLE B-7 RJ-45 to DB-25 Adapter Crossovers

120 Netra 240 Server Service Manual • June 2004
RJ-45 to DB-25 Adapter Crossovers
Serial Port (10101)
The port labeled 10101 accepts a DB-9 connector. Use this port for general purpose
serial data transfers.
FIGURE B-4 shows the pin numbering of the serial port, and
TABLE B-8 describes the pin signals.
FIGURE B-4 Serial Port (10101) Pin Numbering
TABLE B-7 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
TABLE B-8 Serial Port (10101) Connector Signals
Pin Signal Description Pin Signal Description
1 Data Carrier Detect 6 Data Set Ready
2 Receive Data 7 Request to Send
3 Transmit Data 8 Clear to Send
4 Data Terminal Ready 9 Ring Indicate
5 Ground
15
69