TIA-472G000:2010

General Overview

This Standard covers optical fiber communications cables
intended for installation in underground sewers, specifically storm
and sanitary sewers. Materials, construction, and performance
requirements are included in this Standard, together with
applicable test procedures. Additional applicationsbased
considerations are discussed as well.

Refer to ICEA S-87-640 for optical fiber communications cables
intended for general outside plant use, ICEA S-110-717 for optical
fiber cables intended for aerial, duct, and buried outdoor and
indoor/outdoor drop applications, and ICEA S-104-696 for optical
fiber communications cables intended for indoor/outdoor use.

Applications Space

Products covered by this Standard are intended for use in
metropolitan, urban, and suburban communications networks via use
of underground infrastructures, in the last portion of all-optical
networks, such as storm and sanitary sewers. These products convey
communications signals (voice, video, and data) in metropolitan
network rings and serve as point-to-point connections to the
subscriber's premises via sewer laterals, in the last portion of
the optical network.

These products are intended for use in sewer lines, using
man-entry and nonman entry techniques. Such installations are
intended to have no adverse effect on the efficiency of the sewer
system. These cables are generally placed manually in pre-installed
trays or conduits or may be secured to the sewer pipe wall by means
of hooks, adhesive beds, sewer pipe liners, or may be tensioned
intermittently, in order to maintain the cable and/or conduit out
of the flow of the effluent.

The successful application of optical fiber cables in sewer
systems requires that all identified maintenance to or
rehabilitation of the sewer pipes be conducted prior to cable
installation, in accordance with procedures under development by
ASTM¹

¹ Systems-level work on sewer-based communications
applications is the prerogative of ASTM Technical Committee F36 on
Technology and Underground Utilities.