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NBN Co Network Design Rules

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<strong>NBN</strong> <strong>Co</strong> <strong>Network</strong> <strong>Design</strong> <strong>Rules</strong><br />

1.1.2.5. PON Planning Hierarchy<br />

For planning, design, and construction purposes the network is divided into hierarchical modules<br />

and network entities.<br />

These modules are used to provide the planning constructs needed to provide connectivity between<br />

the individual End-Users premise through to the Access Seeker (AS) Point of Interconnection (POI)<br />

The first identifiable connection point is an end-user premise. These are defined as physical address<br />

points. Each individual dwelling unit is required to have a unique service location, and is identified as<br />

an end-user. If the end-user premise is situated in a Multi-Dwelling unit environment then these are<br />

treated as individual connections.<br />

The first module is the Fibre Distribution Area (FDA) which is comprised of an average of 200 endusers.<br />

The FDA is the catchment area of a Fibre Distribution Hub (FDH) which provides a passive<br />

optical aggregation point for the LFN into the DFN.<br />

X 200<br />

FIBRE DISTRIBUTION AREA<br />

(FDA)<br />

Figure 8 Fibre Distribution Area<br />

The second module is the combination of a maximum of 16 FDAs to create a Fibre Serving Area<br />

Module (FSAM). An FSAM with the maximum of 16 FDAs will, as a result, have an average catchment<br />

of 3200 end-users.<br />

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