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[2017-2020] : [SG15] : [Q16/15]

[Declared patent(s)]  - [Associated work]

Work item: L.fdb
Status: Under study [Issued from previous study period]
Approval process: AAP
Type of work item: Recommendation
Version: New
Provisional name: -
Equivalent number: -
Timing: 2019 (No priority specified)
Liaison: IEC SC86B WG6
Subject/title: Requirements for passive optical nodes:Fibre Distribution Box
Summary: FTTx has been developing at an increasing rate in many areas of the world, and it has mostly been implemented in the form of passive Optical Distribution Networks (ODNs). The passive ODNs consist of optical fibre cables and passive optical nodes. Fiber Distribution Box (FDB) is one of the most important and widely used passive nodes, especially in FTTH deployments. The FDBs serve as access points in the network for FTTH subscribers. In a typical FTTH solution for multi-dwelling units (MDU), FDBs are widely used for interconnection of distribution cables and user drop cables. In most countries throughout the world, MDU represents the main dwelling mode for middle-class and low-income inhabitants. Therefore, creating a new Recommendation for FDB is important for promoting the development of FTTH networks. Because FDB is one of the most popular distribution infrastructures used in the PON, it has many different names used all over the world. Compared with other passive nodes in the network, FDB as a passive node has a specific definition as the enclosure for interconnection point of multi-fibre distribution cables and user drop cables; its function in the network includes the distribution (into the network) and termination (for fibres in distribution cables). Although FDB is the most widely used designation for this passive node, it may also be referred to as Optical Distribution Box (ODB) in some regions of the world. The characteristics of FDB include, but are not limited to: -Passive nodes used in FTTH networks for distribution cables and for interconnection of the distribution cables and user drop cables; -Located near the houses of the users, often used as user access points; -Normally installed in indoor non-temperature controlled environments, or outdoor above- ground environments; -Wall-mounted or pole-mounted applications ; -Internal fibre organization system typically contains pigtails, movable (?) connectors, patch panels, fusion splices and splitters; -Mostly in the form of boxes or cases.
Comment: -
Base text(s):
Liu Cheng, Editor
Daniel Daems, Editor
Thai Liu, Editor
Xiangkun Man, Editor
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First registration in the WP: 2016-11-02 10:59:37
Last update: 2018-10-28 12:48:42