IEC 62343-3-4:2018为多播光交换机提供了性能规范模板。目的是为多播光开关的性能规范或产品规范的制定提供一个框架。本文件中要求的规范参数在产品规范或性能规范中被视为必不可少的参数。 ？ 关键词:多播光开关（MCOS）

IEC 62343-3-4: 2018 provides a performance specification template for multicast optical switches. The object is to provide a framework for the preparation of performance specifications or product specifications of multicast optical switches. Specification parameters required in this document are considered as essential in the product specifications or performance specifications. ？ Keywords: multicast optical switch (MCOS)