Documentation of Demarcation

The Department understands that different Installation owner, and different applications by an Installation Owner may take different business approaches. In some cases, the Installation Owner may propose to build and own the Node Transport Facility. In others, it may build and own the Network Node and another entity may build and own the Node Transport Facility.
The application shall indicate the demarcation between the Node Transport Facility and the Broadband Installation.
If Network Node equipment is to be located on the Pole or Service Structure itself or the ground in close proximity to the Pole or Service Structure, the handoff from the Node Transport Facility to the Broadband Installation is the demarcation point. The following figures illustrate physical demarcations between the Node Transport Facility and the Network Node at a line interface unit (LIU) also known as the network interface device (NID).
Figure B-9 illustrates a typical scenario in which the Node Transport Facility (dotted line) is delivered aerially. The LIU/NID shown is located on the Pole (it could also be in a nearby handhole if the cabinet is on the ground). The Node Transport Facility provider provides transport from a splice point and drops the line to the NID.
Example Aerial Node Transport Facility/Network Node Equipment Demarcation Point (click in image to see full-size image)
Figure B-9. Example Aerial Node Transport Facility/Network Node Equipment Demarcation Point
Figure B-10 illustrates a typical scenario in which the Node Transport Facility (dotted line) is delivered underground. The Node Transport Facility provider typically builds a handhole containing the transport cable for the Network Node connection. It is recommended that the handhole be located within 10' of the Pole. The demarcation point is where the Node Transport Facility connects to the Broadband Installation.
Example Underground Node Transport Facility/Network Node Demarcation Point (click in image to see full-size image)
Figure B-10. Example Underground Node Transport Facility/Network Node Demarcation Point
A Node Transport Facility may be delivered wirelessly as well. In that case, a backhaul antenna may be installed on the Pole or Service Structure, and the LIU/NID would contain the RF equipment used to provide backhaul to the Network Node.