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6000-100Ch4.fm Rev. D TimeVault™ User’s Manual 4-81
Extended Function Commands Chapter 4: Serial or Telnet I/O Functions
4.4.21 F100 BL - Burn Host Lock Request
Use Burn Host Lock to display whether or not software upgrades via serial or Telnet
connections can be performed in the normal mode.
To display the burn host lock state, send the following command:
F100 BL<Enter>
An example unit response:
BURN_DISABLE_BIT = 0
If the lock is set to 1, upgrading is not possible via serial or Telnet connections in the
normal mode (the burn host lock has been set). If the lock is set to 0, upgrading is possible
(the burn host lock has been reset).
4.4.22 F100 BLS - Burn Host Lock Set
Use Burn Host Lock Set to prevent unauthorized upgrading of software via serial or Telnet
connections.
To set the burn host lock, send the following command:
F100 BLS<Enter>
The unit responds:
Are you sure? (y/N)
If you answer “y” and press Enter, the unit executes the command.
As a safety feature, after sending this command, you have 10 seconds to respond
affirmatively (enter the letter “y”) to the confirmation prompt, after which the unit
executes the command and resets. Within that 10 second time period, any other response,
including no response, results in the unit canceling the command.
Unit example execution:
BURN_DISABLE_BIT = 1
4.4.23 F100 BLR - Burn Host Lock Reset
Use Burn Host Lock Reset to reset the lock and allow software upgrades via serial and
Telnet connections. You must be in bootloader mode to access this function.
To reset the burn host lock, send the following command:
F100 BLR<Enter>
The unit responds:
Are you sure? (y/N)
If you answer “y” and press Enter, the unit executes the command.