1 Scope
This part of IEC 61753 contains the minimum initial performance, test and measurement requirements and severities for plug-pigtail style and plug-receptacle style OTDR reflecting devices to meet the requirements of category C-Controlled environments, as specified in Annex A of IEC 61753‑1[1]1. These devices are utilized for out-of-band OTDR testing of an optical fibre system.
Annex B provides information concerning these devices.