This part of IEC 61753 contains the minimum initial test and measurement requirements and severities which a Gaussian-passband-profile cyclic Arrayed Waveguides Grating (AWG) for single bidirectional transmission systems satisfies in order to be categorised as meeting the IEC standard Category C-Controlled Environments. This standard pertains to wavelength division multiplexing network (WDM) with multiple spectral-band usage. The standard covers the requirements of cyclic AWG devices with free spectral range (FSR) characteristic to ensure multiple spectral bands transmission performance, with single-mode non connectorised pigtails and no electric circuit board.