H3C MSR 20/30/50 Series Routers User Manual
Chapter 5 Software Maintenance
5.3.1 Modifying Serial Interface Parameters
Sometimes, we need to change the serial baud rate to higher in order to save
upgrading time, or to lower to guarantee transmission reliability. This section depicts
how to adjust serial baud rate.
Enter <2> under the main BootROM menu to enter the serial submenu. Then, enter
<5>, and the system prompts to change serial baud rate.
========================<BAUDRATE SET>=======================
|Note: Change The HyperTerminal's Baudrate Accordingly, |
| Press 'Enter' to exit with things untouched. |
|--------------------<Baudrate Avaliable>-------------------|
| <1> 9600(Default) |
| <2> 19200 |
| <3> 38400 |
| <4> 57600 |
| <5> 115200 |
| <6> Exit |
=============================================================
Enter Your Choice(1-6):
Select a baud rate, <5> for 115200 bps for example. The following prompt appears:
Change the baudrate on PC side first!
Since the router serial baud rate is modified to 115200 bps, whereas the terminal baud
rate remains to be 9600 bps, they can not communicate with each other. Change the
baud rate of your terminal to the same as that for software download.
Perform the following operation:
Figure 5-2
Disconnect terminal
Click [File/Properties], and press <Configure…> to change baud rate to 115200 bps:
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