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Work item:
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L.209 (ex L.font)
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Subject/title:
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Requirements for Fibre Optic Network Terminal Box (FONT)
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Status:
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Approved on 2022-02-13
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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New
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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IEC SC86B WG6, CENELEC TC86 BXA
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Supporting members:
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Ministry of Telecommunication, India; Sterlite Technologies Ltd, India; Commscope Connectivity, OFS, MIIT(P.R. China), China Unicom
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Summary:
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This Recommendation describes the requirements of a combined housing for ‘Fibre Optic Network Terminal box’ (FONT) to keep in a single box active elements like ONT, battery and its charge controller (power supply) as well as passive elements like fibre patch panel, connectors, splitters and fibre splice trays, instead of having multiple boxes for active and passive elements separately. This recommendation will be especially helpful to service providers for FTTx applications in areas where ownership, space, safe custody and availability of power supply source are hurdles to deployment.
The FONT should have two compartments with independent doors. The active elements compartment should have provision for natural ventilation required for active elements in addition to sealing against ingress of dust and liquid which is required for both the compartments. The passive element compartment should have the features of a standard FDB (Fibre Distribution Box).
The FONT comprises of:
-a mechanical structure (box housing) for mechanical and environmental protection of active and passive elements with provisions for thermal management/ventilation of active elements and sealing of internal systems;
-a simple fibre management system for guiding and managing the fibres and fibre connections inside the box;
-a cable attachment and termination system for attaching and terminating cable ends.
Mechanical and environmental characteristics and evaluation of performance should comply with the provisions of [ITU-T L.200/51] for passive element compartment and [ITU-T L.204/70] for active element compartment.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2020-05-19 14:52:22
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Last update:
2022-04-01 15:18:34
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