KL6xxx 係xi列lie總zong線xian端duan子zi模mo塊kuai支zhi持chi數shu字zi信xin號hao接jie口kou等deng複fu雜za信xin號hao。一yi些xie總zong線xian端duan子zi模mo塊kuai用yong作zuo子zi總zong線xian係xi統tong的de現xian場chang總zong線xian主zhu站zhan。因yin此ci，總zong線xian端duan子zi模mo塊kuai站zhan點dian成cheng為wei不bu同tong係xi統tong之zhi間jian的de通tong用yong網wang關guan。