ADCUTU804HDSL是E1LineTerminationUnit／V.35/V.36/G.703/704接口可选非远端供电卡式LTU-801E1LineTerminationUnit/G.703/704接口远端供电卡式LTU-802E1LineTerminationUnit/V.35/V.36/RS-530/X.21接口可选远端供电卡式LTU-804E1LineTerminationUnit／V.35/V.36/G.703/704接口可选远端供电卡式UTU-801E1LineTerminationUnit／G.703/704接口非远端供电卡式UTU-802E1LineTerminationUnit/V.35/V.36/G.703/704接口可选，非远端供电卡式UTU-804E1LineTerminationUnit/V.35/V.36/G.703/704接口可，非远端供电卡式ETU-851E1LineTerminationUnit/G.703/704接口非远端供电台式ETU-852E1LineTerminationUnit/V.35/V.36/RS-530/X.21接口可选，非远端供电台式ETU-854E1LineTerminationUnit/V.35/V.36/G.703/704接口可选，非远端供电台式ERE-811配卡式的机壳)