Cuda 12000 IP Access Switch CLI-based Administration Guide
Defining Modulation Profiles 423
Shortened

The Shortened parameter enables the truncation of FEC codeword.

You specify whether to keep the codeword fixed or enable truncation of the

FEC codeword by performing the following tasks:

.
Scrambler

The Scrambler parameter enables or disables the scrambler.

You configure the scrambler by performing the following tasks:

.
Task Command
1. Enter cable interface
mode.
interface cable <c/s/i>
2. Configure codeword
length.
modulation-profile <profile number>
interval-usage {initial | long | request | short |
station} last-cw {fixed | shortened}
Task Command
1. Enter cable interface
mode.
interface cable <c/s/i>
2. Enable the scrambler. modulation-profile <profile num ber>
interval-usage {initial | long | request | short |
station} scrambler
3. Disable the scrambler. modulation-profile <profile number>
interval-usage {initial | long | request | short |
station} no scrambler