Cisco Headend System Release 2.7 Installation Guide
Chapter 1 Initial Installation of RNCS Software
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Allow SI—Determines whether the QAM carries SI (system information),
which defines it as a Distinguished QAM). Since this BFS QAM modulator is
being used in an RNCS, set this option to no (unselected). SI information is
carried by QPSK modulators in an RNCS.
which defines it as a Distinguished QAM). Since this BFS QAM modulator is
being used in an RNCS, set this option to no (unselected). SI information is
carried by QPSK modulators in an RNCS.
Input Port—Defines the interface that connects to this QAM modulator.
Since this BFS QAM modulator is being used in an RNCS, select the ASI
option.
Since this BFS QAM modulator is being used in an RNCS, select the ASI
option.
INPUT Transport Stream—The system sets this value automatically when
the corresponding transport stream ID is set up in the ASI card and the
connection is established on the Connectivity tab.
the corresponding transport stream ID is set up in the ASI card and the
connection is established on the Connectivity tab.
RF OUT Fields
–
–
Modulation—Select the type of modulation this QAM modulator uses.
For example, if this modulator uses 256 QAM, you would select 256
QAM.
For example, if this modulator uses 256 QAM, you would select 256
QAM.
–
Transport Stream ID—Enter a unique number that identifies the
transport stream going from this QAM modulator to the set-tops on your
system. You can use up to 5 numeric characters.
transport stream going from this QAM modulator to the set-tops on your
system. You can use up to 5 numeric characters.
–
Channel Center Frequency (MHz)—
Enter the channel frequency that
will send system information to set-tops. We recommend that you enter a
value in 6 MHz increments from 91 to 867 MHz.
value in 6 MHz increments from 91 to 867 MHz.
–
Continuous Wave Mode—Enable this option to produce an
unmodulated RF carrier. This is useful when performing testing.
unmodulated RF carrier. This is useful when performing testing.
–
Mute RF Output—
Enable this option to turn off the RF output for a port.
This is helpful when installing the modulator.
–
Disabled—Enable this option to prevent the DNCS from setting up any
additional sessions on an RF output port. (Existing sessions are not
affected and continue to function as expected.) This may be helpful when
performing plant maintenance or in the rare event that a port fails.
additional sessions on an RF output port. (Existing sessions are not
affected and continue to function as expected.) This may be helpful when
performing plant maintenance or in the rare event that a port fails.
–
Interleaver Depth—Select the depth of interleaving that the modulator
uses. Available only if you are using Overlay technology.
uses. Available only if you are using Overlay technology.
–
Port to Hubs—Click to view the hubs that are available to receive content
data from this QAM.
data from this QAM.
6 Click Apply. The system saves the QAM modulator information you have
entered thus far into the DNCS database and enables the Port To Hubs button.
7 Click Port to Hubs. The RF Output Port window opens. The Basic Parameters
area of this window shows the data that you entered for key RF output fields.
The Associated Hubs area shows the hubs that are available to receive content
data from this QAM modulator.
The Associated Hubs area shows the hubs that are available to receive content
data from this QAM modulator.
8 Make sure the Selected Hubs field shows no hub names so that this QAM
modulator sends BFS data (DNCS BFS QAM only) to all hubs in the headend.
Note: To remove a hub name from the Selected Hubs field, select the hub name,
and click Remove. The hub name moves to the Available Hubs field.
Note: To remove a hub name from the Selected Hubs field, select the hub name,
and click Remove. The hub name moves to the Available Hubs field.