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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Annex A channels must be assigned to RF connectors as follows:
Channels
RF Connector
0-7
0
8-11 and 24-27
1
12-19
2
20-23 and 28-31
3
Although this channel numbering scheme is not contiguous, it does not force operators who have been using 24DCAM-A cards
to reconfigure their cabling.
Note: Because the 16D PIC is used for all XD CAMs, the port numbering on the PIC faceplate will be incorrect when the PIC
is used for the XD CAM.
Annex B channels must be assigned to RF connectors as follows:
Channels
RF Connector
0-7
0
8-15
1
16-23
2
24-31
3
An XD CAM can support from 1-16 MAC domains. A single XD CAM can also support one MAC domain containing all 32
of its channels. Each MAC domain contains from 1-32 downstream channels from an XD CAM and one or more
upstream channels from a 12U or 24U CAM.
By default the XD CAM is licensed for 16 channels. An additional license must be purchased to activate the remaining
channels up to a total of 32. In other words, the XD CAM ships with 16 channels enabled and a license can be
purchased to activate the remaining 16 for a total of 32 downstreams.