Fibre optic interconnecting devices and passive components. Fibre optic WDM devices - Generic specification subscription-only right angle and left angle

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Fibre optic interconnecting devices and passive components. Fibre optic WDM devices - Generic specification subscription-only right angle and left angle1 Scope This part of IEC 62074 applies to fibre optic wavelength division multiplexing (WDM) devices. These have all of the following general features: they are passive, in that they contain no optoelectronic or other transducing elements; however they may use temperature control only to stabilize the device characteristics; they exclude any optical switching functions; they have three or more ports for the entry and or exit of optical power, and