IBM 8685 Hardware Maintenance Manual - Page 124

Table 13. SCSI IDs for optional backplane, SCSI controller, and hot-swap drives in bays 7 through 12 Device SCSI ID SCSI controller 6 or 7 (default) Backplane 9 Drive bay 7 10 Drive bay 8 11 Drive bay 9 12 Drive bay 10 13 Drive bay 11 14 Drive bay 12 15 SCSI port connectors The following illustration shows the pin-number assignments for the 68-pin SCSI connectors. 34 1 Serial ports 68 35 Your server has one standard serial port: serial port A. The operating system and the ISMP cannot use or share serial port A. 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. Note: The Devices and I/O Ports choice appears only on the full configuration menu. If you set two levels of passwords, you must type the administrator password to access the full configuration menu. 4. Select the serial port; then, use the arrow keys to advance through the available settings. 5. Select Save Settings; then, select Exit Setup to exit from the Configuration/Setup Utility main menu. Serial-port connectors The following illustration shows the pin-number assignments for the 9-pin, male D-shell serial-port connector on the rear of your server. These pin-number 114 xSeries 255 Type 8685: Hardware Maintenance Manual and Troubleshooting Guide