Cisco Model D9479 Gigabit QAM Modulator Installation Guide
Chapter 2 Installing the Dual SFP GQAM
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Connect the RF OUT Ports
Introduction
The RF OUT ports should be connected to a system of combiners, through the cable
system, and eventually to subscribers' DHCTs. Each RF port provides for the
transport of MPEG-2 transport stream (TS) data. The ports use F-connectors and 75
Ω
coaxial cable interfaces.
CAUTION:
Set the RF output frequency and RF output level before you connect any RF
Set the RF output frequency and RF output level before you connect any RF
OUT ports to the network to avoid possible RF interference with the services
of other units connected to the network.
Important: We strongly recommend that you configure and adjust frequencies
Important: We strongly recommend that you configure and adjust frequencies
from the Set Up GQAM window on the DNCS. See Provision GQAMs on the
DNCS (on page 52) for details.
You can also see the Adjust the Frequencies of a Selected RF Channel or CH
You can also see the Adjust the Frequencies of a Selected RF Channel or CH
Carrier (on page 71) and the Adjust the RF Output Level of a Selected Carrier
(on page 73) sections for additional instructions for setting the RF output
frequency and RF output level.
Location of RF OUT Ports
The following illustration shows an example of the four RF OUT ports connected to
the distribution plant.