The proposed C-TRX architecture can be extended to support multiple optical sub-systems identification simultaneously by incorporating wavelength division multiplexing (WDM) techniques. By assigning different wavelengths to each optical sub-system, multiple identifications can occur concurrently. Each sub-system would have a unique signature based on its wavelength, allowing for simultaneous identification without interference. Additionally, the architecture can include multiple circulators and switches to route the signals from different sub-systems to the coherent receiver for identification. This approach enables efficient and parallel identification of various optical components within the network.