Chapter 8: Downstream Cable Access Modules (DCAMs)
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Mixed Annex Support
All of the cable-macs on a given CAM must be configured with the same annex. In other words one CAM may be
configured for Annex A and another may be configured for Annex B, but annexes cannot be mixed on the same CAM. If the
cable-macs of a given CAM are configured with different annexes, then this CAM will not go into service.
CAUTION: Changing the annex is service affecting.
If Using Reconfiguration Scripts or Making Multiple RF Parameter Changes
When using provisioning scripts or making extensive changes to downstream or upstream RF parameters or channel
configurations, users should observe the following guidelines:
1.
Cable-macs should be shut down before shutting down the up or downstream channels. Shut down each cable-mac
(MAC domain) individually and have the system wait 60 seconds to give the RSM time to process the information. For
example:
configure interface cable-mac 1 shutdown
wait 60
configure interface cable-mac 2 shutdown
wait 60
(Repeat as needed for other cable-macs.)
2.
Change the RF parameters or configurations.
3.
Restore the up or downstream channels to service before restoring the cable-macs.
4.
Restore the cable-macs to service.
How to Change the Local Annex on a 16D CAM
Note: Because the XD CAM slot type determines the annex, this procedure will not work for an XD CAM.
Perform the following steps to change the local annex setting on a MAC domain. If you have multiple mac-domains on
a card, you must repeat steps 2-5 for each mac-domain, before proceeding to steps 6-9:
1.
Shut down the CAM(s).