(The generalized wiring project of CPG Northeast Branch is the foundation of the computer network. The overall goal of the project is to build a high-speed, preemptive and perfect generalized wiring system, supporting high-bandwidth data transmission and various network types (100BaseTX, 1000BaseT, 1000BaseFX, ATM, etc.) etc.) and can support B-ISDN (Broadband Summary Service Data Network) network and voice services. good)