Chapter 4: C4 CMTS General Installation Requirements
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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the near future. Voltage planes that are far out of specification can cause the module to stop functioning properly. The
improper function is detected by maintenance and the card is taken out of service (configuration dependent).
Note: By default, logging is enabled but recovery is disabled. To enable recovery or disable logging, contact an ARRIS Tech
Support representative.
Proper operation is ensured by adding support for tiered DC voltage thresholds. The new High and Low Warning
Thresholds are used to trigger log messages for operator notifications (enabled by default). The new High and Low Error
Thresholds are used to trigger card recovery actions (disabled by default). These actions are indicated in the following
figure:
Figure 21:
DC Voltage Thresholds
Voltage monitors on the cards continuously measure a multitude of card voltage levels. Maintenance software then
compares these measurements with the threshold values and takes the above actions when voltage levels fall outside of
the specified ranges.