Generic Requirements for Multiple Dwelling Unit (MDU) Fiber Distribution Terminals
Document Number GR-3161
Issue Number 01
Issue Date Mar 2008
Components of this product are:
ABSTRACT: GR-3161, Generic Requirements for Multiple Dwelling Unit (MDU) Fiber Distribution Terminals, outlines the Telcordia proposed
generic requirements for Multiple Dwelling Unit (MDU) Fiber Distribution Terminals (FDTs) intended to house passive telecommunications
components. This document covers indoor and outdoor Multiple Dwelling Unit (MDU) Fiber Distribution Terminals (FDTs) products that have
either a plastic or metallic housing. The MDU terminal is a wall-mounted interconnect housing for multiple dwelling units, such as an
apartment building or apartment complex with typically 48 customers or less. The MDU products serve as a passive interface between the
telecommunications provider's feeder network and their individual distribution cables serving their customers. MDU terminals are
sometimes referred to as fiber distributing hubs or service access terminals, and they perform a similar function as the traditional
telephone network Building Entrance Terminal (BET) does for copper networks. In addition, the MDU terminal serves as a convenient test
access point to verify the integrity of the service provider network and the customer equipment.
This document contains all the general, electrical, mechanical, and environmental requirements for MDU terminal closure products.
This document may be referred to by major service providers as the base requirements for these products. This GR contains requirements
and test methods in one document.
GR-3161 would help users, suppliers, and manufacturers properly access, test and review MDU terminal closure products. By
identifying issues in the testing phase, millions of dollars in field issues can be avoided.
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