IEC 61753-084-02:2025 contains the minimum initial performance, test and measurement requirements and severities which a fibre optic pigtailed 980/1 550 nm wide wavelength division multiplexing (WWDM) device will satisfy in order to be categorized as meeting the requirements of category C (indoor controlled environment), as defined in IEC 61753-1:2018, Annex A. WWDM is defined in IEC 62074-1. The requirements cover devices with single-mode non?connectorised pigtails. This device has three ports; 980 nm port, 1 550 nm port and common port for output or combining 980 nm and 1 550 nm. This first edition cancels and replaces the first edition of IEC 61753-084-2 published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Change of test conditions harmonizing with IEC 61753-1: 2018.
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