scope:

This Recommendation provides the requirements of a fibre distribution box (FDB) and the means for characterization and evaluation of the performance of an FDB according to the principles of [ITU-T L.200]. This includes mechanical performance, sealing performance and optical stability of the product which simulate the effect of environmental factors or interventions related to network maintenance and reconfiguration. It contains a basic test program for the box which is globally applicable. Additional requirements may be agreed upon between customer and supplier to reflect local or special conditions. All functions and features that a product may contain should be reflected in the mix of test samples that are subjected to the test program.

This Recommendation:

- refers to an FDB as a passive optical node in an access network;

- details the characteristics and requirements of the housing, the FDB fibre management system and the cable attachment and termination system;

- specifies mechanical and environmental characteristics of the FDB;

- specifies characteristics of the FDB fibre management system;

- provides a test plan for the performance evaluation of FDB used in indoor non-temperature controlled (IN) or outdoor above ground (OA) (See [ITU-T L.200]);

- discusses the simulation of the effect of interventions related to network maintenance and reconfigurations;

- provides a checklist for a systematic product characterization according to [ITU-T L.200].