NCR 7454 User Manual page 140

5-6 Chapter 5: BIOS Updating Procedures
2. Connect the two machines with the RS-232 cable. Use COM Port 1
on both machines (COM1 is next to the USB ports on the 7454).
PC
RS-232 Cable
3. Connect the Parallel Dongle to the Parallel I/F Cable.
Parallel
Dongle
4. Boot the PC in the DOS mode with CD-ROM support.
Note: The PC must be running in the DOS mode (not in a Windows
DOS box) for the software to operate correctly.
5. Insert the BIOS update CD into the PC.
NCR BIOS and BIOS Update Software
LPIN: A370-0022-0100
6. Apply power to the terminal.
7. On the PC, change directory to the CD-ROM drive.
E: [Enter]
Parallel Dongle
25-pin
497-0411000
D-Shell
Receptacle
NCR 7454
Parallel I/F Cable
28-pin
Sub-Miniature
D-Plug
16991
Parallel
Port
16992