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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0015.d0a1.a0f3 14/4-3/0 39.2 1598 0 0 0.00e+00
0015.cfb7.c394 14/5-3/13 38.1 895 0 0 0.00e+00
0015.d002.e6f6 14/6-3/12 38.2 503 0 0 0.00e+00
+0015.d002.e6f6 14/6-3/0 38.5 500 0 0 0.00e+00
0015.d002.e6f6 14/6-3/1 38.2 502 0 0 0.00e+00
+0015.d002.e6f6 14/6-3/13 38.1 496 0 0 0.00e+00
NOTE: the plus sign "+" indicates a non-primary channel
Modulation Profiles
The pre-defined modulation profiles discussed in this section are used as a means to define the values of the several
parameters needed to configure an upstream (US) channel. These modulation profiles are each given an ID number. They
can be modified or used as a starting point to create other modulation profiles for upstream channel definitions that better
suit the customers’ applications and environments.
Default Modulation Profile
The Modulation Profile ID 2 uses QPSK and TDMA, and it is the default profile. The following sections show you how to
define a new modulation profile.
Note: Modulation profile ID 2 can be modified but it cannot be deleted.
How to Create and Apply a Modulation Profile to an US Port
This procedure can be used to modify existing modulation profiles or to add new ones. Modulation profiles must be
created and then associated with specified upstream ports.
Table 50.
Existing or New Modulation Profile
If you specify an …
Then the procedure will …
existing modulation profile ID
change an existing modulation
profile.
unused modulation profile ID
add a new modulation profile.