CANOGA PERKINS 2461 E1 Modem - Manual (Page 71)

EdgeAccess Universal Chassis System
8.3.3 Installing into a Stand Alone Modem Via the Serial Port
You can download the new firmware version to your 2461 Modem via a serial port. The Canoga
Perkins website has a small DOS-based program called dwnfirm.exe to facilitate this process. To
access it, log on and select Downloads from the Canoga Perkins home page.
The dwnfirm.exe program can be used to individually upgrade the modem's active firmware and
bootcode. These are separate files and can be recognized by their file extension:
• The bootcode upgrade file has a .bin file extension.
• The firmware upgrade file has a .zip file extension. (Do not unzip this file. Downloading it
will automatically expand the files appropriately.)
To install the new version:
1. First, download the new firmware or bootcode version from Canoga Perkins website to your
server's root directory.
2. Put the dwnfirm.exe program (a single executable file) in the same folder as the firmware or
bootcode version just installed.
3. Attach the modem via the serial port to the PC.
4. dwnfirm.exe must be launched with the file name that must be downloaded to the modem. A
specific argument must be used.
• Check the name of the bootcode you downloaded. If the bootcode is version 1.12,
then the argument
C:\dwnfirm -b 2x6x0112.bin
will download the file as version 1.12 to the 2461 modem. The argument "-b"
informs the modem that the incoming file is Bootcode. (As more upgrades become
available, the exact file names will change to reflect the new version numbers)
• To upgrade the modem's firmware, use the following argument:
C:\dwnfirm 2x6x0173.zip
Note: Please look at the command line carefully before beginning the download
process. Make sure you include the entire path name where the dwnfirm.exe file and
bootcode file are located. In the example above, the path is C:\dwnfirm.exe.
Replace that path with the correct path where your files are stored.
Note: To obtain help with specific command usage for this program, type
dwnfirm ? in the directory where the dwnfirm.exe file is located.
5. As soon as dwnfirm.exe is finished, the modem should be reset.
6. The file transfer is done at 115200bps and the progress is shown on the PC screen.
7. The bootcode will verify the file integrity, then burn it to the inactive bank or the bootcode
FLASH. The newly downloaded file will then be made active automatically and it will be
decompressed in DRAM.
2461 Modem User Manual 8-5