SMC Networks SMC6724L3 Management Manual page 601

12. If using Windows HyperTerminal, click the "Transfer" button, and
then click "Send File...." Select the XModem Protocol and then use
the "Browse" button to select the required firmware code file from
your PC system. The "Xmodem file send" window displays the
progress of the download procedure.
Note: The download file must be a binary software file for this
switch.
13. After the file has been downloaded, you are prompted with "Update
Image File:" to specify the type of code file. Press <R> for runtime
code, <D> for diagnostic code, or <L> for loader code.
Note: If you select <L> for loader code, be sure the file is a valid
loader code file for the switch. If you download an invalid file,
the switch will not be able to boot. Unless absolutely necessary,
do not attempt to download loader code files.
14. Specify a name for the downloaded code file. File names are
case-sensitive, should be from 1 to 31 characters, not contain slashes
(\ or /), and the leading letter of the file name should not be a period
(.). (Valid characters: A-Z, a-z, 0-9, ".", "-", "_")
15. For example, the following screen text shows the download procedure
for a runtime code file:
Select>x
Xmodem Receiving Start ::
Image downloaded to buffer.
[R]untime
[D]iagnostic
[L]oader (Warning: you sure what you are doing?)
Update Image File:r
Runtime Image Filename : run_1013
Updating file system.
File system updated.
[Press any key to continue]
B-3