GR 3121 CORE : ISSUE 1

Describes the Telcordia view of proposed generic requirements for Below-Grade Fiber Distribution Hubs (FDHs). These requirements are intended to provide a suitable environment for telecommunications companies' FDHs used in an outside plant environment. Any equipment housed in these FDH cabinets is accessible to the craftsperson through surface-mounted or removable doors. An FDH is normally installed as a connection and demarcation point from different feeder networks, or between a feeder network and the distribution network. These FDHs are passive and do not contain active electronics or fiber optics.