Cisco GoQAM, Installation And Operation Manual

Page: 49 / 178

Connect the RF OUT or IF OUT Ports
4004834 Rev D 33
Connect the RF OUT or IF OUT Ports
The back panel of the GoQAM contains ports that are labeled either
RF OUT
or
IF
OUT depending on the model of GoQAM you are using. The RF OUT or IF OUT
ports of the GoQAM should be connected to a system of combiners, through the
cable system, and eventually to subscribers’ DHCTs. Each RF OUT or IF OUT port
provides for the transport of MPEG-2 transport stream (TS) data. The RF OUT and IF
OUT ports use F-connectors and 75 Ω coaxial cable interfaces.
Note: The Overlay solution uses only two of the RF OUT ports (RF OUT 1 and RF
OUT 3) on the RF GoQAM modulator.
CAUTION:
Turning on the GoQAM with default RF output level may cause RF
interference with the services of other units connected to the network.
Therefore, set the RF output frequency and RF output level before you
connect any RF OUT ports to the network.
Important! We strongly recommend that you configure and adjust
frequencies from the Set Up GoQAM window on the DNCS. See
Provision GoQAMs on the DNCS (on page 46) or Provision an IF
GoQAM on the DNCS
(on page 71) for detailed instructions.
Location of RF OUT Ports
The following illustration shows an example of two of the four RF OUT ports
connected to the distribution plant.
Note: The RF GoQAM uses only the RF OUT 1 and RF OUT 3 ports.