1-2 
 
The loading process of the Boot ROM software is the same as that of the host software, except that 
during the former process, you should press “6” or <Ctrl+U> and <Enter> after entering the BOOT 
menu and the system gives different prompts. The following text mainly describes the Boot ROM 
loading process. 
 
BOOT Menu 
Starting...... 
 
 
 
            *********************************************************** 
            *                                                         * 
            *         Switch 4200G 12-Port BOOTROM, Version 2.00      * 
            *                                                         * 
            *********************************************************** 
 
            Copyright (c) 2004-2007 3Com Corporation and its licensors. 
            Creation date   : Nov 20 2007, 17:02:48 
            CPU Clock Speed : 200MHz 
            BUS Clock Speed : 33MHz 
            Memory Size     : 64MB 
            Mac Address     : 00e0fc005100 
 
 
Press Ctrl-B to enter Boot Menu... 
Press <Ctrl+B>. The system displays: 
Password : 
 
 
To enter the BOOT menu, you should press <Ctrl+B> within five seconds (full startup mode) or one 
second (fast startup mode) after the information “Press Ctrl-B to enter BOOT Menu...” displays. 
Otherwise, the system starts to extract the program; and if you want to enter the BOOT Menu at this 
time, you will have to restart the switch. 
 
Enter the correct Boot ROM password (no password is set by default). The system enters the BOOT 
Menu: 
             BOOT  MENU 
 
1. Download application file to flash