IEC/PAS 61753-088-2:2010(E) contains the minimum initial test and measurement requirements and severities which a non-connectorised single-mode fibre optic Local Area Network Wavelength Division Multiplexing (LAN WDM) device with channel spacing of 800 GHz needs to satisfy in order to be categorised as meeting the requirements of category C - Controlled environments, as defined in Annex A of IEC 61753-1.