GE D20 EME框架即D20 VME 3U机箱，料号500-0280，属于D20/D200变电站远动装置整机机架，5槽VME背板结构，最左侧槽位专门用来安装D20 EME以太网内存扩展板。

GE D20 EME framework is 3U VME chassis PN 500-0280 for D20/D200 RTU. It is a 5-slot rack, and the left slot is reserved for D20 EME ethernet & global memory expansion module.

背板集成VME总线与电源分配回路，可搭载D20ME II处理器、电源模块、I/O板卡；另有三防涂层版本500-0280-CC，适配潮湿、强电磁干扰变电站环境，用于整机框架更换与项目改造。

VME backplane with power distribution bus for D20ME II CPU, PSU and I/O cards. Conformal coated variant 500-0280-CC is available for EMC and humid substation site retrofit.

Main Specifications 技术参数

• 1. Product Series / 产品系列：GE Multilin D20 / D200 Substation Automation RTU

• 2. Part Numbers / 型号编码：D20 VME Chassis 500-0280，三防版 500-0280-CC

• 3. Function Type / 类型：VME Bus Chassis Framework VME总线控制器机架框架

• 4. Key Features / 特性：3U高度，5槽位，VME背板，后置端子板，EMC变电站等级

• 5. Compatibility / 配套：D20 EME板、D20ME II CPU、D20系列I/O卡、D20电源

Core Functions 核心功能

• 1. 承载整套D20 VME系统，为CPU、EME、I/O卡提供VME总线互联载体。
  Host full D20 VME system, providing VME bus interconnection for CPU, EME and I/O modules.

• 2. 机架电源分配，给槽位内所有板卡统一供电，内置电源母线。
  Built-in power bus to distribute DC power for all plug-in boards inside chassis.

• 3. 后置端子面板，引出串口、网络、遥信遥测接线，方便现场布线。
  Rear termination panel for serial, ethernet and field signal wiring termination.

• 4. 多CPU架构适配，支持机架内多片D20ME II配合D20 EME共享全局内存。
  Support multi-D20ME II CPU setup with D20 EME global shared memory.

• 5. 机械防护与电磁屏蔽，降低变电站强干扰对RTU远动通讯的影响。
  Mechanical enclosure and shielding to suppress substation electromagnetic interference.

Application Scenarios 应用场景

• 1. 老旧D20远动装置机箱变形、背板损坏，整机框架备件更换。
  Replacement of damaged D20 chassis with broken backplane or deformed housing.

• 2. 变电站自动化改造，搭建全新D20 VME多CPU RTU机架。
  Build new D20 multi-CPU RTU rack for substation SCADA upgrade project.

• 3. D20 EME配套机架整套供货，含背板、机壳、端子、盖板。
  Full framework package supply including chassis, backplane, rear panel and blank covers.

• 4. 海外电网项目D20/D200远动控制柜整机配套框架。
  Complete rack framework supply for overseas power substation RTU cabinet.

• 5. 三防版本用于户外、潮湿、高盐雾变电站站点改造。
  Conformal coated chassis for outdoor, humid and salt-fog substation locations.

FAQ 常见问答

Similar Models 相似型号

500-0280-CC

500-0305

D20 EME

D20ME II

D20AC