IEC 61753-031-6-2014 纤维光学互连器件和无源元件性能标准--第031-6部分：O类非连接器化的单模1×N返回和2×N非波长选择分路器--非受控环境 Fibre optic interconnecting devices and passive components - Performance standard - Part 031-6: Non-connectorized single-mode 1×N and 2×N non-wavel

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 requirements of this 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 O 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 (i.e. for extended reach PON
application) and class B (standard class) for standard application (i.e. normal reach PON
application).
The requirements also cover unbalanced bidirectional non-connectorized single-mode non-
wavelength-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.dition 2.0 2014-09 INTERNATIONAL STANDARD Fibre optic interconnecting devices and passive components – Performance standard – Part 031-6: Non-connectorized single-mode 1xN and 2xN non-wavelength- selective branching devices for Category O – Uncontrolled environment IEC 61753-031-6:2014-09(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 2014 IEC, Geneva, Switzerland All rights reserved. Unle