Cisco DNCS System Release 2.7 3.7 4.2 Design Guide

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Chapter 2    System-Related Diagnostic Screens 
 
 
 
56 
78-4001708-01 Rev B 
QAM Channel Status Diagnostic Screen 
Information 
This section provides an overview diagram and field descriptions of the QAM 
Channel Status Information diagnostic screen. You can view this screen to review 
the status of various QAM channels for the Explorer DHCTs. 
 
Performing Tasks 
By accessing this diagnostic screen, you can perform the following tasks: 
 
 
Check the integrity of the QAM signal 
 
Determine the current capacity of QAM buffer 
 
Verify the total number of packets received since the QAM channel became 
active 
 
Determine the status of a QAM channel 
 
Screen Components 
The color of each row on the QAM Channel Status diagnostic screen represents one 
of the following status types for the channel: 
 
Gray—indicates an inactive channel 
 
White—indicates an active channel with a nominal current condition and no 
previous errors 
 
Amber—indicates an active channel with a nominal current condition, but 
previously had overflow errors 
 
Red—indicates an active channel that is presently in an overflow condition