DIN EN 61753-031-2:2015-07

This part of IEC 61753 contains the minimum initial tests and measurement requirements and severities which a non-wavelength selective branching device (NWBD) should satisfy in order to be categorized as meeting the requirement of this IEC standard. The requirements cover balanced bidirectional non-connectorized single-mode 1×N and 2×N non wavelength-selective branching devices for use in an IEC Category C environment (N is the number of branching ports), especially but not exclusively used for PON application. For balanced NWBD two attenuation and uniformity performance classes are considered: class A (premium class) which meets more restrictive requirements (for example, for extended reach PON application) and class B (standard class) for standard application (for example, normal reach PON application). The requirements also cover unbalanced bidirectional non-connectorized single-mode, nonwavelength- selective branching devices; however, the specifications of unbalanced branching devices are limited to 1×2 and 2×2 devices because they are the most commonly used. The responsible committee is Subcommittee DKE/UK 412.7 "LWL-Verbindungstechnik und passive optische Komponenten" ("Fibre optic interconnecting devices and passive optical components") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.