IBM x 340 Series, Hardware Maintenance Manual

Page: 75 / 188

Installing options
67
Serial ports
Your server has two standard serial ports: Serial port A and Serial port B. The
operating system can use and share both serial ports; however, the integrated
Advanced System Management Processor can use and share only 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 Device and I/O Ports choice appears only on the full configuration
menu. If you set two levels of passwords, you must enter the
administrator password to access the full configuration menu.
4. Select the serial port; then, use the arrow keys to advance through the settings
available.
5. Select Save Settings; then, select Exit Setup to exit from the Configuration/Setup
Utility main menu.
19 Reserved 53 Reserved
20 Ground 54 Ground
21 +Attention 55 -Attention
22 Ground 56 Ground
23 +Busy 57 -Busy
24 +Acknowledge 58 -Acknowledge
25 +Reset 59 -Reset
26 +Message 60 -Message
27 +Select 61 -Select
28 +Control/Data 62 -Control/Data
29 +Request 63 -Request
30 +Input/Output 64 -Input/Output
31 +Data 8 65 -Data 8
32 +Data 9 66 -Data9
33 +Data 10 67 -Data 10
34 +Data 11 68 -Data 11
Table 15. 68-pin SCSI connector pin-number assignments.
Pin Signal Pin Signal