Verilink 9000 Series (34-00271) Product Manual - Manual (Page 62)

40 C HAPTER 3: H ARDWARE O PERATION
Download
Mode
The Download mode enables the unit to receive firmware through the supervisory
port. This is used to download the core operating system to the unit. This mode is
only used to update the core operating system and not firmware options. In most
cases, this is used only by the factory.
For more information regarding the Download mode, see 9000-Specific Core
Download Procedure on page 79.
Configuration
Mode
The Configuration mode restores the unit to a default configuration. For more
information regarding the Configuration mode, see 9000-Specific Task Download
Procedure on page 80.