Viewing Or Changing The Serial-Port Assignments; Serial-Port Connectors; Ultra160 Scsi Ports - IBM eServer 232 xSeries User Reference Manual

Some application programs require specific ports, and some modems function
properly only at certain communication port addresses. You might need to use the
Configuration/Setup Utility program to change communication port address
assignments to prevent or resolve address conflicts.

Viewing or changing the serial-port assignments

To view or change the serial-port assignments:
1. Restart the server and watch the monitor screen.
2. When the message Press F1 for Configuration/Setup appears, press F1.
3. From the main menu, select Devices and I/O Ports; then, press Enter.
4. Select the serial port; then, use the arrow keys to advance through the settings
5. Select Save Settings; then, select Exit Setup to exit from the

Serial-port connectors

The following table shows the pin-number assignments for the 9-pin, male D-shell
serial-port connectors on the rear of your server. These pin-number assignments
conform to the industry standard.
Table 9. Serial-port connectors pin-number assignments.

Ultra160 SCSI ports

Your server has an integrated dual-channel Ultra160 small computer system interface
(SCSI) controller. This controller supports two independent Ultra 160/m SCSI
channels, both internal. Each of these channels supports up to 15 SCSI devices. In
addition, this controller uses:
•
•
•
•
A SCSI cable connects the SCSI channel A connector to the hot-swap drive
backplane. If you obtain an additional SCSI cable, the SCSI channel B connector is
available for connecting non-hot-swap SCSI drives in the 5.25-inch bays.
available.
Configuration/Setup Utility main menu.
Pin Signal
1 Data carrier detect
2 Receive data
3 Transmit data
4 Data terminal ready
5 Signal ground
Double-transition clocking to achieve high transfer rates
Domain name validation to negotiate compatible data transfer speeds with each
device
Cyclic-redundancy checking (CRC), instead of the usual parity checking, to
significantly improve data reliability
An active terminator on the system board for SCSI bus termination
5
1
6 9
Pin
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
Chapter 5. Installing Options
Signal
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