ICEA S-119-741:2016

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Fiber To the Antenna (FTTA) Optical Fiber Cable

Published By	Publication Date	Number of Pages
ICEA	2016	37

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Category: ICEA

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Description

Products

Fiber to the Antenna (FTTA) cables covered by this standard include cable used for distribution and delivery of optical fiber from the base band unit (BBU) of a cell site to the remote radio unit (RRU) on the associated structure. These cables may be hybrid design, incorporating electrical conductors for low voltage power delivery and control, or standalone optical cables. This standard primarily references ANSI/ICEA S-87-640-2011 (ICEA 640) and ANSI/ICEA S-104-696- 2013 (ICEA 696) for optical performance requirements. Standalone optical cables covered by this standard are essentially ICEA 640 or ICEA 696 compliant cables, less requirements deemed not applicable to the application such as Hydrogen Evolution in Cable, Water Penetration Test and Mid-Span Buffer Tube Storage. As such, standalone optical cables complying with ICEA 640 or ICEA 696 shall be considered compliant with this standard.

Application

Space All designs covered by this Standard are intended for operation under normal conditions found in the communications user’s locations, most often cell towers. These products normally convey digital communications signals (voice, video, and data) from point to point or point to multi point. Products covered by this Standard may be factory terminated with connectors or splicing modules.

Tensile Rating

Antenna locations vary widely, which places varying demands on the cables servicing them. Appropriate tensile ratings for FTTA cables are thus application dependent.

FTTA cables that are designated for vertical, self-support applications, e.g., free-hanging inside a monopole, shall be rated for residual load that matches or exceeds the weight of the free hanging portion of the cable

Minimum Bend Diameter

The standard minimum bend diameters for cables covered by this Standard are:

Residual (Installed or static): 20 x Cable OD

Loaded Condition (During Installation or self-support): 40 x Cable OD

For cables not having a circular cross-section, bend diameter requirements are to be determined using the thickness (minor axis) as the cable diameter and bending in the direction of the preferential bend. Smaller cable bend diameters are permissible as agreed upon between the user and manufacturer.

Fire-Resistance

Fire resistance is application dependent. The user should consult the local Authority Having Jurisdiction (AHJ) to determine required fire resistance ratings, if any. Some fire resistance ratings that may be appropriate are:

Plenum Cables

Cables listed as having adequate fire-resistance and low smoke producing characteristics for use in ducts, plenums and other space used for environmental air. Plenum rating is typically only applicable to communications cables and power-limited circuit cable. In the context of this standard, Plenum rating would only be applicable to standalone optical cables.

Riser Cables

Cables listed as having fire-resistant characteristics capable of preventing the carrying of fire from floor to floor for use in a vertical run in a shaft or from floor to floor. Riser rating is typically only applicable to communications cables and power-limited circuit cable. In the context of this standard, Riser rating would only be applicable to standalone optical cables.

General Purpose

Cables listed as being resistant to the spread of fire for general-purpose use, with the exception of risers, plenums, and other space used for environmental air. General Purpose rating is typically only applicable to communications cables and power-limited circuit cable. In the context of this standard, General Purpose rating would only be applicable to standalone optical cables.

Tray Rated

Cables listed as being intended for use in accordance with Article 336 and other applicable parts of the National Electrical Code (NEC), ANSI/NFPA 70, in cable trays, in raceways, and where supported in outdoor locations by a messenger wire.

This publication is arranged so that cables may be selected from numerous constructions covering a broad range of installation and service conditions.

Parts 2 and 3 designate the materials, material characteristics, dimensions and tests applicable to the particular component.

Part 4 covers assembly, cabling, and identification of the individual optical fibers.

Part 5 includes cable coverings.

Part 6 provides other pertinent requirements not otherwise addressed by Parts 1 through 5 or by Parts 7 and 8 of this Standard.

Part 7 describes the test methods and performance requirements applicable to the component materials and completed cables manufactured under this Standard. If there is a conflict between Parts 1 through 6 and Part 7, the provisions of Part 7 apply.

Part 8 contains routinely specified optical performance, test methods and requirements for finished cables.

Part 9 contains cross-references to other standards and publications.

Annex A: Ordering Information (Informative)

Annex B: List of ICEA Telecommunication Cable Standards (Informative)

Additional information