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. 112
CAUTION: Be careful when dressing RF cables so that they do not obstruct the grillwork at the top rear of the chassis. This
grill is the primary heat vent for the chassis. Blocking it can cause overheating and card failure.
Figure 13: Installing a Fan Tray
Air Filter
The C4 CMTS comes equipped with an air filter mounted horizontally just above the fan assemblies and just below the
chassis slots. It is important to change the fan filter at least every three months, depending on the air quality on site.
CAUTION: Dirty air filters cannot be cleaned and reused.
Replacement filters may be ordered from ARRIS in kits of four — normally a year’s supply for one chassis. For ordering
information contact your ARRIS sales representative.
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