NCR 7455 Hardware User's Manual page 88

3-14 Chapter 3: Setup
Base I/O Address (Port D)
Use this option to set the base I/O address for serial port D.
1. Move the cursor to Base I/O Address and press Enter.
2. Select the desired setting from the drop-down menu.
228
208
3E8
2E8
Mode (Port D)
Use this option to configure the COM D communication mode.
1. Move the cursor to Mode and press Enter.
2. Select the desired setting from the drop-down menu.
Other
RS-232