y y Service pedestals will generally be installed in the
public right-of-way or the same easement as the
electrical equipment. These pedestals will then provide
communications service to the individual facilities. For
pedestals not sharing an easement with FPL equipment,
AT&T prefers a 5'x5' easement.
underground locations. Distribution is accomplished to most
homes and businesses through overhead to underground
transitions at the overhead radial line locations. Comcast
has offered to upgrade their service to the Town through
installation of a Fiber to the Premises (FTTP) system.
However, the cost of this upgrade would have to be borne
by the Town. Therefore, this master plan contemplates
installation of a “like for like” fiber optic / coaxial cable system
similar to that which exists today except all cabling would be
underground.
y y AT&T prefers major equipment easements to be 10'x10'
for their future fiber equipment needs.
y y Equipment may be located in the right of way if sufficient
clear zone requirements are met.
y y Pedestals require one foot of clear distance around all sides
for access and maintenance.
y y Pullboxes will be required at regular intervals to facilitate
cable pulling and slack cable storage. AT&T prefers
24"x36" and 30"x48" pullboxes. Pullboxes are to be
located outside of the roadway surface. When required,
pullboxes can be placed in the paved surface and in this
case will be required to be H-20 load rated.
y y Service cable between the pedestal and the facility to be
served will be direct buried. Conduit will only be provided
for service cable crossing under roadways.
y y Conduit and pullboxes are to be NEC compliant for
communications service and conduit shall be gray in color.
Transformer clearance requirements
y y Equipment and cabling will be provided and installed
by AT&T. Conduit and pullboxes will be furnished and
installed by the Town’s contractor.
5.5 Comcast
Comcast provides communications service to the Town
through a network of fiber optic and copper coaxial
cables. The fiber optic trunk line exists in both aerial and
TOWN-WIDE
OF of
UTILITIES
PROGRAM
Town-Wide UNDERGROUNDING
UNDERGROUNDING
Utilities
Program
MASTER
PLAN DOCUMENT
Document
MASTER PLAN
Comcast will be performing the communications network
design for the program with Kimley-Horn developing the
supplemental conduit plans to aid the Town’s contractor for
installing the conduit necessary for the Comcast network.
Comcast has provided the following general guidelines related
to the design of the improvements.
y y Main underground fiber optic trunklines and power source
equipment can be reused if practical. Reuse of power
sources shall be evaluated during the design phase as this
will require a power source to serve both the new network
and existing network during the cut over phase. This
may overload the power source if sufficient power is not
available to serve both networks simultaneously.
y y One fiber node can accommodate a maximum of 256
connections. Fiber node service areas should be designed
with less than 256 connections in order to provide room
for future growth.
y y Each fiber node location is supported by three pieces of
equipment; a power supply cabinet, a Virtual Hub (VHub)
Node Housing, and a Local Convergence Point (LCP) that
serves as the Fiber Distribution Hub (FDH). For a hybrid
fiber/coaxial system, the LCP would not be used.
LCP
Power Supply
VHub
Comcast VHub, Power Supply, and LCP
DESIGN CRITERIA AND CONCEPTUAL DESIGN
DATA DESCRIPTION
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