Wannan na'urar ita ce na'urar faɗaɗawa ta Ethernet, ta amfani da hanyar sadarwa (PDH/SDH/Microwave) wanda ke ba da tashar G.703 don cimma haɗin haɗin gida da na nesa na Ethernet tare da musaya na serial a ƙananan farashi.
The G.703 (Co-Directional G.703) dubawa raba 64Kbps sake zagayowar zuwa 4 raka'a tazara, shi yana amfani da"0101" wakiltar "0", "1100" wakiltar "1" .Ta hanyar musanya canjin canji na toshe kusa, siginonin binary suna canza sigina mai mataki uku.
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