... install two receiver module and two return transmitter module 2.FP , DFB,CWDM laser OPTICAL WORKSTATION(Optical Receiver)PTR3224A ... high performance node specially designed for metro CATV network. FP, DFB or CWDM return path offerings meet different requirements ... level up to 112dBuV@-1dBm l Two optical receiver modules (redundant)l Two optical transmitter modules (redundant)l FP, DFB or CWDM return ...