ADC CUDA 3 - Manual (Page 387)

Cuda 12000 IP Access Switch CLI-based Administration Guide
Configuring the Downstream Channel 385
Downstream Modulation
The Downstream modulation parameter sets the modulation rate for a
downstream channel. The CMTS supports the following two modulation
types.
You set the downstream modulation type by performing the following tasks.
Task Command
1. Enter interface configuration
mode.
interface cable
2. Configure modulation used on
the downstream channel. Valid
values:
■
qam64: Set s the interface speed
at 30 Mbps
or
■
qam256: Sets the interface
speed at 40 Mbps
downstream modulation
{qam64 | qam256}