Cisco Headend Digital Broadband Delivery System
LED Indicators Displayed During a Software Download
736107 Rev D
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LED Indicators Displayed During a Software
Download
DHCTs with Front-Panel Alphanumeric LED Indicators
Explorer DHCTs with front-panel alphanumeric LED indicators display the codes
associated with downloading, installing, and booting into the SARA on the front-
panel LED indicator.
SSC DHCT Download
The following table shows an example of a CVT download sequence of front panel
The following table shows an example of a CVT download sequence of front panel
LED displays that appear after AC power is applied to the DHCT.
Note: The front-panel alphanumeric LED displays that appear on the Explorer
Note: The front-panel alphanumeric LED displays that appear on the Explorer
DHCTs may change for each stage of the DHCT software download process.
Therefore, in the following table, the LED displays that correspond to certain stages
of the download process may be repeated or skipped, as noted in the Description
column. In other words, the stages do not always occur in the order shown.
Stage Alphanumeric
LED Indicator
TV Monitor
Description
1
The “wave” appears each time the
DHCT resets. The DHCT is
initializing and testing the system.
The wave provides a visual cue as to
when to press buttons to force
auxiliary functions.