Hi, it cann't be connected to the FMU-D162136EM3 1310nm Port. Our optical fiber telephone is 1310nmTX, 1550nmRX. It is divided into Telephone A and B. Telephone A and B have completely the same operation except Telephone A modulates the signal on 1310mm wavelength, while Telephone B is on 1550mm wavelength. Besides, Telephone A and B must be used in couple. Thanks by S***g on 06/28/2018