
Chapter 3
Upgrading the TVP-224HR
This chapter explains how to upgrade your TVP-224HR when new revision
software becomes available. Upgrades may improve system functionality
or add new features to your TVP-224HR.
The TVP-224HR offers two operation modes. Under normal conditions, the TVP-
224HR operates in regular operational mode. When software upgrade is required, the
TVP-224HR may be operated in download mode. Under download mode, the CLI will
support limited commands allowing users to read new revision codes from a remote
TFTP server and write it to the built-in flash non-volatile storage.
The CLI under download differs from normal in the prompts and that it supports less
commands.
3.1 Entering Download Mode
To switch from normal operation mode to download mode, use the
download
CLI
command.
Console>
get
<Enter>
Note:
To be able to switch to download mode from Telnet session, the TFTP loader
on the TVP-224HR must be version 3.00 or higher.
The TVP-224HR will terminate all on-going calls, shut down itself, reset and enter
download mode. If you enter download mode from Telnet session. The Telnet session
will be terminated too. You need to connect to the TVP-224HR from Telnet client
again to be able to access the CLI commands. Refer to Section Connection through
Telnet in Chapter 8 for detailed information on how to connect to TVP-224HR from
Telnet client.
Upon entering the download mode, the CLI will show the following prompt.
IP address of the TFTP server? [xxx.xxx.xxx.xxx] <Enter>
When prompted enter the file name of the firmware file.
3
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