Boot block, Figure 52, Boot block status screen – ADTRAN HDSL2 User Manual
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Control Port Operation
HDSL2 for General Distribution Installation and Maintenance Practice
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61223HDSL2L2-5B
Boot Block
The Boot Block Status screen (
) provides the status of the Boot Block sector, which
in rare cases can become locked. If locked, the bootcode cannot be upgraded by future
firmware upgrades. The bootcode is seldom changed with new download code.
The bootcode is the small piece of code that allows firmware upgrades on the H4TU-C unit. If
the bootcode becomes corrupted, the H4TU-C will require factory service to restore it to a
functional state.
Figure 52. Boot Block Status Screen
Shelf: 1 Slot: 17 Total Access System 03/01/05 10:59
Unacknowledged Alarms: MAJOR INFO
Circuit ID:
Boot Block Status = OK (not locked)