IEC 61753-089-2:2013
光纖互連設備和無源元件.性能標準.第089-2部分:C類非連接單模雙向光時域反射計(OTDR)監控的WWDM設備.受控環境
Fibre optic interconnecting devices and passive components - Performance standard - Part 089-2: Non-connectorized single-mode bidirectional OTDR monitoring WWDM devices for Category C - Controlled environment