IPLC

MB series intelligent programmable logical controllers ( iPLC ) adopt the embedded software and hardware technology , LAN / Fieldbus system framework , and real-time multitasking operating system .

MB系列智能可编程逻辑控制器（iPLC）采用嵌入式软、硬件技术和现场总线技术。具有LAN/FieldBus系统结构，提供以太网、现场总线和串口通信等外部通信手段；

Customization as an important means of market competition , there are an increasing number of large multinational corporations began to try to use safe and efficient IPLC FRAME-RELAY MPLS-VPN leased line business .

客户化成为市场竞争的重要手段，也有越来越多的大型跨国企业开始尝试使用安全性和效率更高的IPLC、FRAME-RELAY、MPLS-VPN等租用专线业务。

This paper analyzed three kinds of present ROADM which are based on WB ? iPLC and WSS respectively , discussed several schemes to implement ROADM , then puts forward a new architecture of optical node that is named Semi - ROADM .

文章分析了当前ROADM的三种主要技术（分别基于波长阻塞器、集成平面光波导和波长选择开关），讨论了实现ROADM的几个方案，提出一种称为Semi-ROADM的节点结构。