1784-CP111784-CP111784-CP112、系统高可靠设计由于实时数据库记录的是和生产相关的数据，并且和时间相关，所以要求其必须能够长时间稳定运行，否则就会导致数据的丢失。目前一些实时数据库已经具有缓存数据的功能，当数据采集机器和实时数据库服务器之间通信出现故障时，可以把采集到的数据缓存到本地，当通信***正常后，把缓存的数据写入到实时数据库服务器中，另外两台实时数据库可以设置为冗余来提高可靠性。而对于关系数据库来说，如果在关键业务，比如电信***等，多数采用计算机集群形式来提高可靠性的设计。※推荐品牌：※推荐公司Allen-Bradley厦门泰尼电气有限公司Schneider联系人：小黄（销售代表）Triconex固定电话：0592-6809319FOXBORO***:2917675397ABB邮箱：2917675397@***.comSIEMENS传真：0592-6890859MOTOROLA网址：www.xmtaini.comXYCOM地址：厦门海沧街道滨湖一里7号RexrothIndramat邮编：361026手机：18950191386NortelNTCA07VPOPTERALHREGENR/RCVRNortelNTCA04VPOC192STM-64XRRecv/RegenUnitNORTELMODULEETHERNET1GBPS8-PORTSDS1404036NORTELS8000IndoorBTSG***850mhz-1900MhzNortelAL4500E14-e6pwrswitch4548gt48portNortelBCM200Bundle(4x16x0x2+VM16)NORTELSWITCHETHERNET10/100MBPS48-PORTSDS1404035NortelDS1404063-E58630GBR30-PortSFPRoutingSwitchNortelNetworksEB1412027-E53408ApplicationSwitchNortelNorstarMICSOfficePhoneSystemw/32T7316VMNortelAlteonAlteon2424-SSLSwitchEB1412006NortelBCM4003.7BaseSystemRedundant(NT7B10AAFK)IBM/NORTELSWITCHETHERNET10GBPS14-PORTS32R1783Nortel,AL4500E14-E6ETHERNETROUTINGSWITCH4548GT-P..Nortel,WL81WCA16E5WC8180-16L16APNOPOWERCORDNORTELCHASSISSWITCHACCELAR8000MODULARDS1402001NortelNorstarCICS8x16Systemw/CallPilot100VoicemNortel2208NortelDS1404092-e5PASSPORT8648GTRSWITCHNortel,NTC06601BUE6BCM4506.0STDDSYSPWRCORDBDLNortelBCM400E1CallCenter+60HandsetsCompleteNortelNT7B10AAEEBCM400BusinessCommunicati***ManagNEWNortelPassportRoutingSwitch1624G24PDJ1412E04NortelBCM4003.7BCM400R3.764vm64um64ip1LancteNortelApplicationSwitch2208-8Ports-EB1412030E5NORTELNT0H16AAOM5100/5200OTRB1CH1WMT9E50BAANortelDS1404098-E5PASSPORTRTGSWCH8324FX24PT100BNEWNORTEL8648GTR48PORTSWITCHMODULEDS1404092-E539Y9267-Nortel10GbEthernetHighSpeedSwitchModuleNortelAlteonSwitchedFirewall5109EB1639046AF5109NortelPassport8610Switch8692SF8648TXE8608GBEACNewNortel8692SFDS1404065-E5SwitchFabric/CPUNORTELETHERNETROUTINGSWITCHAL1001E05E5NortelAL1001e07-e5BaystackSwitch553024TFDnewboxNortelAL1001a07-e5BaystackSwitch553024TFDnewboxGENUINE39Y9265IBMNortel10GbEthernetSwitchGENUINE39Y9267IBMNortel10GbEthernetSwitchGENUINE39Y9266IBMNortel10GbEthernetSwitchNORTELM3905CENTERPHONENTNG35CA70NorstarMICSNortelOfficePhoneSystemw/25T7316VMNORTELNTHW70AA314pOC3Ch***IRPassport15000ModuleNortelAlteonASFAccelerator6400FirewallEB163906732R1859IBMNORTELLAYER2-7GIGABITETHERNETSW32R1868Nortel,AL4500E04-E64548GTSWITCH4810/100/1000+4NEWNORTEL/***AYAAL1001E13-E5ERS5650-TDPWRNORTELETHERNETROUTINGSWITCH5510-48TAL1001E03E5Alteon6600NortelSwitchFirewallASF6600EB1639113)