Cisco DNCS System Release 2.8.1 3.8.1 4.3.1 User Guide

After obtaining a copy of your network map, the next step in setting up your network elements in the DNCS is to
set up all of the logical elements. A logical element represents a group of devices, rather than a single, specific
device. Logical elements are not actual hardware elements, but represent a group of QAM modulators, QPSK
modulators, and QPSK demodulators that service a particular area of your network. 

To set up your network elements in the DNCS, you must first set up a headend, at least one hub for each
headend, and a node set for each demodulator in your system.

Important: Before you begin, you must have your network map.

Keep in mind the following guidelines as you set up logical elements in your network:

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If you are setting up elements in an RCS, each site must have at least one headend.

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Each headend must have at least one hub.

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Node sets are necessary only if the headend supports reverse data, for example, PPV services and

email. (We recommend that you have only one node set per demodulator on your system.)

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Do not assign demodulators with the same frequency to the same node set.

To set up logical elements in the DNCS, you must complete the following steps. For step-by-step instructions for
a particular task, click on that task.

1.

. (You do not need to set up the central DNCS site

because the system automatically sets up this site for you.)

2.

site. 

3.

Set up a headend for your network. Note that adding a headend to an RCS uses a slightly different

process:

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4.

Set up a headend for your network. Note that adding a headend to an RCS uses a slightly different

process:



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