Panasonic UF-580 Technical Manual

Also see for DX-600: Network fax guide Service manual

61UF-580/590/780/790DX-600/800DEC 2003Ver 2.00SC PCBPin No. Signal Name Destination Signal Waveform FunctionCN93-33 DD3 LANB PCB CN95-33 +3.3V(H)0V(L)Data SignalCN93-34 DD4 LANB PCB CN95-34 +3.3V(H)0V(L)Data SignalCN93-35 DD5 LANB PCB CN95-35 +3.3V(H)0V(L)Data SignalCN93-36 DD6 LANB PCB CN95-36 +3.3V(H)0V(L)Data SignalCN93-37 DD7 LANB PCB CN95-37 +3.3V(H)0V(L)Data SignalCN93-38 DD8 LANB PCB CN95-38 +3.3V(H)0V(L)Data SignalCN93-39 DD9 LANB PCB CN95-39 +3.3V(H)0V(L)Data SignalCN93-40 DD10 LANB PCB CN95-40 +3.3V(H)0V(L)Data SignalCN93-41 DD11 LANB PCB CN95-41 +3.3V(H)0V(L)Data SignalCN93-42 DD12 LANB PCB CN95-42 +3.3V(H)0V(L)Data SignalCN93-43 DD13 LANB PCB CN95-43 +3.3V(H)0V(L)Data SignalCN93-44 DD14 LANB PCB CN95-44 +3.3V(H)0V(L)Data SignalCN93-45 DD15 LANB PCB CN95-45 +3.3V(H)0V(L)Data SignalCN93-46 *WR LANB PCB CN95-46 +3.3V(H)0V(L)Write Signal - Low EnableCN93-47 *RD LANB PCB CN95-47 +3.3V(H)0V(L)Read Signal - Low EnableCN93-48 RESET LANB PCB CN95-48 +3.3V(H)0V(L)LAN Reset SignalH: ResetL: Not Reset