DIN EN 61753-031-3:2015-09

This part of IEC 61753 contains the minimum initial tests and measurement requirements and severities which a non-wavelength selective branching device (NWBD) shall satisfy in order to be categorised as meeting the IEC standard. The requirements cover balanced bidirectional non-connectorised single-mode 1xN and 2xN non-wavelength-selective branching devices for use in an IEC Category U environment (N is the number of output ports), especially but not exclusively used for PON network application. The specifications of unbalanced branching devices are limited to 1x2 and 2x2 devices because they are the most commonly used.