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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If recovery is enabled and the C4 CMTS voltage High or Low Error Threshold level is crossed, normal card recovery action
will occur. On the third Low or High Error Threshold level recovery attempt within a 24-hour period, the C4 CMTS will place
the CAM in an OOS-FLT state until a manual action occurs. If that occurs, the operator must shut/no shut the slot of that
card in order to restore it to service. If an SCM or RCM has three High or Low Error Threshold level recovery attempts in a
24-hour period, then the SCM or RCM goes into a fault state but will continue to try to recover on its own.
Chassis Maintenance
Cleaning the Chassis
Since some cleaners could be dangerous or cause damage to the finish of the chassis, ARRIS recommends only Isopropyl
Alcohol wipes be used.
Air Filters
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.
Replacing the C4 CMTS Chassis
How to Replace the Chassis
In the event of a chassis failure in which a replacement is deemed necessary, perform the following steps:
1.
Before you begin:
a.
Make sure all cables are labeled.
b.
Tag each module with the current slot number and be sure modules are returned to same slot.
c.
Verify that the new chassis has arrived in good condition. For a fully loaded chassis you will need 40 antistatic bags.
Note: Ensure your ESD strap is in place before handling any C4 CMTS component, modules, or other hardware.
