Abstract：The paper ex po unds the impo rtant meaning of the subscriber line ci rcui t in digitalization develo pment o f the communicatio n netw o rk, a nd analy zes the feasible plan of the subscriber line circui t by using the symmet ric cable fo r achieving the digi talization t ra nsmi ssio n. On the ba si s o f crosstalk theory , the ba sic calculating method fo r the amo unt of line-pairs w hich can be used in digi tal sig nal transmissio n and the cro sstalk inf luence in the cable are proposed.
姜昌沿. 用户环路对称的通信电缆数字化传输[J]. 铁道工程学报, 1998, 15(2): 70-74.
Jiang Chang yian. FEASIBLE PLAN AND BASIC CALCULATION OF DIGITALIZATION TRANSMISSION OF SUBSCRIBER LINE CIRCUIT IN THE SYMMETRIC COMMUNICATION CABLE. Journal of Railway Engineering Society, 1998, 15(2): 70-74.
1998, Vol. 15 
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