This part of IEC 61753 contains the minimum initial test and measurement requirements and severities which a Gaussian-passband-profile cyclic arrayed waveguide grating (AWG) for single-mode and bidirectional transmission systems satisfies in order to be categorised as meeting the requirements of IEC 61753-1 for category C (controlled environment). This standard pertains to wavelength division multiplexing (WDM) network with multiple spectralband usage. This standard covers the requirements of cyclic AWG devices with free spectral range (FSR) characteristics to ensure multiple spectral bands transmission performance, with single-mode non-connectorised pigtails and no electric circuit board.