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.
279
Note: Any unused connectors (either downstream or upstream) should have a 75 Ohm termination in place.
Primary Software Function
The primary software function on the 24U CAM includes:
CM Ranging and Registration
MAC Address Learning
DOCSIS functions: Packet Classification, Service Flows, Dynamic Services (DSx), BPI+, CM Upstream Bandwidth
Scheduling (MAPs), Payload Header Suppression (PHS), Packet defragmentation, packet de-concatenation, and counts
collection
Upstream Policing
Operations, Administration, Maintenance & Provisioning (OAM&P) including initialization and fault recovery code
PacketCable DSx processing.
LED Status
The LED status descriptions for the 24U CAM are listed in the table below:
Table 40.
24U CAM LED Descriptions
Front LEDs
Module Status
Power
Out of Service
On
Off
Powered and in normal service state.
Flashing
On
Flashing = 1.6 second period. Module power is off: either slot is not
provisioned or module has been disabled.
Persistent
Fast Flashing
On
Fast flashing = 6 times/second. Normal when card is first powered or
restored. If fast flashing persists for more than 2 seconds, there is a
serious power problem.
On
On
Powered and out of service.