ABBDCSAC800M模块PM866K02-eAPM864AK02-eAABBDCSAC800M模块PM866K02-eAPM864AK02-eAABBDCSAC800M模块PM866K02-eAPM864AK02-eA-------------------------------------------------------------------------------------------------------------------1.电力通信网络的可靠性差现代的电力通信网络虽然发展速度较快，但是现有的电力通信网络结构的可靠性较低、资源共享能力较差。若是电力网络通信中心系统及其站点出现故障问题，整个电力通信系统都有可能会趋于瘫痪。许多通信设备经过长期的运行，会进入设备的护理期、维修期，甚至是老化期，如此需要护理、维修甚至是更换的不良情况将直接阻碍着电力通信网络的整体稳定发展。2.电力通信网络的传输质量差一般的电力通信网线没有很好的屏蔽层，无法防止共模的干扰;电力通信网络的网线为单股铜线，相对而言容易断裂;网线的线径太细，降低网络传输距离及减少可挂接的设备;由于各个地区的电力需求量不同，SDH节点也就多而且复杂，原有SDH环网上节点数量过多，降低了抵抗多种失效事件的能力，从而影响电力通信***的网络传输质量。3.电力通信网络的结构管理复杂电力通信网络运行管理一般情况下分为一级通信网络、二级通信网络及三级通信网络，电力线路的结构及规划较为复杂。随着各个地区的变电站不断增加，各变电站内新增的SDH设备节点也不断串入原有的SDH环网中，SD***络拓扑结构缺乏优化，越来越复杂。不少电力通信业务需要跨环甚至是跨多环进行传输，导致无法满足传输时的要求。P0999BEP0999BFP0999BGP0999BHP0999BJP0999BKP0999BLP0999BMP0999BNP0999BPP0999BQP0999BRP0999BSP0999BTP0999CAP0999CBP0999CCP0999CDP0999CEP0999CFP0999CGP0999CHP0999CJP0999CKP0999CLP0999CMP0999CNP0999CPP0999CQP0999CRP0999CSP0999CTP0999CUP0999CVP0999CWP0999CXP0999CYP0999CZP0999DAP0999DBP0999DCP0999DDP0999DEP0999DFP0999DGP0999DHP0999DJP0999DKP0999DLP0999DMP0999DNP0999DPP0999EAP0999EBP0999ECP0999EDP0999EEP0999EFP0999EGP0999EHP0999EJP0999EKP0999ELP0999EMP0999ENP0999EPP0999EQP0999ERP0999ESP0999ETP0999EUP0999EVP0999EXP0999FAP0999FBP0999FCP0999FDP0999FEP0999FFP0999FGP0999FHP0999FJP0999FKP0999FLP0999FMP0999FNP0999FPP0999FQP0999FRP0999FSP0999FTP0999FUP0999FVP0999FWP0999FXP0999FYP0999FZP0999GAP0999GBP0999GCP0999GDP0999GEP0999GFP0999GGP0999GHP0999GJP0999GKP0999GLP0999GMP0999GNP0999GPP0999GQP0999GRP0999GSP0999GTP0999GUP0999GVP0999HAP0999HBP0999HCP0999HDP0999HEP0999HFP0999HGP0999HHP0999HJP0999HKP0999HLP0999HMP0999HNP0999HPP0999HQP0999HRP0999HSP0999HTP0999HUP0999HVP0999HWP0999HXP0999HYP0999HZP0999JAP0999JBP0999JCP0999JDP0999JEP0999JFP0999JGP0999JHP0999JJP0999JKP0999JLP0999JMP0999JNP0999JPP0999JQP0999JRP0999JSP0999JTP0999JUP0999JVP0999JWP0999JXP0999JYP0999JZP0999KAP0999KBP0999KCP0999KDP0999KEP0999KFP0999KGP0999KHP0999KJP0999KKP0999KLP0999KMP0999KNP0999KPP0999KQP0999KRP0999KSP0999KTP0999KUP0999KVP0999KWP0999KXP0999KYP0999KZP0999LAP0999LBP0999LCP0999LDP0999LEP0999LFP0999LGP0999LHP0999LJP0999LKP0999LLP0999LMP0999LNP0999LPP0999LQP0999LRP0999LSP0999LTP0999LWP0999LXP0999LYP0999LZP0999MAP0999MBP0999MCP0999MDP0999MEP0999MFP0999MGP0999MJP0999MKP0999NCP0999NDP0999NEP0999NFP0999NGP0999NHP0999NJP0999NKP0999NLP0999NMP0999NNP0999NPP0999NQP0999NRP0999NSP0999NTP0999NUP0999NVP0999NWP0999NXP0999NZP0999PAP0999PBP0999PCP0999PDP0999PEP0999PFP0999PGP0999PHP0999PJP0999PKP0999PLP0999PMP0999PNP0999PPP0999PQP0999PRP0999PSP0999PTP0999PUP0999PVP0999PW)