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Configuring the RJ-45 serial port
The RJ-45 serial port connector can be configured to support either a Data Set Ready (DSR),
or a Data Carrier Detect (DCD) signal. The default configuration for your server supports
DSR signals. To change the configuration from DSR to DCD signal support, a jumper (J8A3)
must be changed on the system board.
To change the RJ-45 serial port configuration to DCD signal support:
1 Follow the instructions in “Preventing static electricity discharge” on page 37. Make
sure you turn off the server, then unplug the power cord and all other cables connected
to the server.
2 Follow the instructions in “Opening the server case” on page 38.
3 Remove the PCI riser assembly by following the instructions in “Removing and
installing the PCI riser assembly” on page 69.
4 Remove the jumper across pins 1-3 of jumper J8A3, then place the jumper across
pins 2-4.
5 Reinstall the PCI riser assembly by following the instructions in “Removing and
installing the PCI riser assembly” on page 69.
6 Follow the instructions in “Closing the server case” on page 39.
Caution Moving the jumper while the power is on can damage your server.
Always turn off the server and unplug the power cords and all other
cables before changing the jumper.