High reliability, perfect equipment protection ZXMP S385 with perfect equipment level protection: redundancy is used to design in hardware, overhead to business bus, bus, bus clock adopts the structure of the double bus system, greatly improve the reliability and stability of the system. Cross is realized by using two intersecting clock, the clock 1 + 1 protection. PDH business veneer implementation 1: N protection: hardware business E1 / T1 business veneer 1: N protection, E3 / T3, STM 1 electric mouth and FE electric mouth also can realize 1: N protection. Implements cabinet outside power protection, veneer power protection and the aircraft power supply access protection to protect a variety of ways. Complete, intelligent network protection ZXMP S385 support to improve the network level of protection: to realize the ITU - T the proposed network characteristics, including ways to protect: 1 + 1 link multiplexing section protection, support link 1: N protection, one-way channel protection ring, two fiber bidirectional multiplexing section protection ring, four fiber bidirectional multiplexing section protection ring function, dual node interconnection protection (DNI), subnet connection protection (SNCP), logical subnet (LSNP). ZXMP S385 have powerful intelligence features, support automatically discover network topology and resource, end-to-end business configuration, quick resistance network more failure, Support for multiple business priority protection and recovery strategy. Support the permanent connection (PC) and soft permanent connection/exchange connection (SPC/SC) online conversion, supports distributed recoverable reroute protection. Implement ASON OUNI - C, OUNI - N and I - NNI function, Support the control plane function, supports in-band and out-of-band SCN, in-band and out-of-band MCN function.