Chapter 9: Upstream Cable Access Modules (UCAMs)
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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ARRIS designed the 24U CAM with a Shuffle network so that operators can populate cables onto the 24U CAM connectors
in order from top to bottom and still easily utilize up to all 24 upstreams available on the CAM.
To assign US channels (receiver) to connectors, use the following command:
configure interface cable-upstream <slot/us_port> cable connector <number> [no]
Where: us_port = The upstream port. Valid range is 0-23
number = The upstream connector on the PIC. Valid range is 0-7.
The [no] version of the command will unassign (decouple) the US channel (receiver) from the connector.
The following table specifies the valid US channels (receiver) / connector combinations.
Table 41.
Valid US Channels/Connector
Upstream Channel
Receiver
Connector
0-11 (first receiver)
0, 2, 4, 6
12-23 (second receiver)
1, 3, 5, 7
Rules and Restrictions for 12U/24U CAM Configuration
Before growing and configuring a 12U/24U CAM with its upstreams, you should review the following rules and restrictions.
Slot Provisioning
The 12U CAM must be grown in a CAM slot provisioned for a 12U CAM and the 24U CAM must be grown in a CAM slot
provisioned for a 24U CAM. CAM sparing can only be done by like cards: a 12U can spare only for a group consisting of
12Us and a 24U can spare only for a group consisting of 24Us. All the CAMs in a sparing group must be of the same type.