3Com 3C13751 Getting Started Manual page 47

Press <Ctrl+B> and the system will enter the Boot menu. Otherwise, the
system will enter the program decompression process.
After "3Com Router 5000 Boot ROM, V9.19" appears, "3Com start
■
booting, (V2.00)" will disappear immediately.
The system enters the Boot menu only if <Ctrl+B> is pressed
■
immediately (within three seconds) after the statement "Press Ctrl-B to
Enter Boot Menu..." appears. Otherwise, you will enter the program
decompression process. To re-enter the Boot menu during the
decompression process, you need to reboot the router.
System is
self-decompressing......................................
OK!
System is starting...
Starting at 0x10000...
User interface Con 0 is available.
Press ENTER to get started.
Press <Enter> and the screen will display:
<3Com>
This prompt indicates that the router has entered the system view, and
now the router can be configured.
Startup of the Router 5000 47