Motorola MPMC222双纤维卡

1.产 品 资 料 介 绍：

Motorola MPMC222 VMEbus 双光纤通信模块解析

一、核心技术特性

1. 双光纤通道并行传输
   配备 2 路独立光纤接口（支持单模 / 多模可选，接口类型含 LC/SC），可同时实现两路数据传输：
   • 冗余模式：两路通道传输相同数据，当一路故障时自动切换至另一路，保障关键数据（如雷达探测数据、电力调度指令）不中断；
   • 负载均衡模式：两路通道分担不同数据流量（如生产线不同工位的高清图像、实验设备多组采集数据），突破单通道带宽瓶颈，适配大容量实时数据交互场景。
2. 高速低延迟传输性能
   支持最高数 Gbps 传输速率（具体依型号而定），延迟控制在微秒级（<1μs）：
   • 满足工业自动化 “实时控制指令下发”、国防 “战术数据高速交互” 等对时效性要求极高的场景；
   • 光纤传输介质本身具备抗电磁干扰、低信号衰减特性，配合模块的信号整形与 CRC 校验功能，进一步保障数据完整性，避免长距离传输中的错误。
3. VMEbus 深度兼容与协同
   完全符合 VMEbus 标准，可作为从模块与 Motorola 系列 VME 主控单元（如 MVME-162、MVME-320B 处理器板）无缝协作：
   • 通过 VME 总线接收主控的通信配置指令（如速率、传输模式），同步反馈两路通道的运行状态（连接状态、故障告警）；
   • 支持 VME 中断响应，可将 “通道故障”“数据接收完成” 等事件主动上报主控，便于系统快速处理异常。
4. 工业级高可靠性设计
   采用加固型硬件方案，适配恶劣运行环境：
   • 环境耐受：工作温度覆盖 -40℃~+85℃ 宽温范围，抗振动等级达 10-500Hz 1.5g，可适应车载（铁路 / 船舶）、户外基站、军工野外部署等场景；
   • 抗干扰与防护：集成光电隔离电路（隔离电压≥2500Vrms），符合 IEC 61000-4 电磁兼容标准，抵御强电磁辐射与浪涌冲击；支持 7×24 小时连续运行，平均无故障时间（MTBF）长，满足关键任务系统 “无间断通信” 需求。

Motorola MPMC222双纤维卡 英文资料：

Analysis of Motorola MPMC222 VMEbus Dual Fiber Communication Module

The Motorola MPMC222 is an industrial grade dual fiber communication module based on the VMEbus architecture, positioned as the "dual channel high-speed fiber transmission hub" of the VME system. It achieves long-distance, high bandwidth, and low latency parallel data transmission through dual independent fiber interfaces, while supporting redundant backup or load balancing. It is suitable for scenarios such as industry and national defense that require strict communication reliability and transmission efficiency, and is a key component for building highly available fiber communication links.

1、 Core technical characteristics

Dual fiber channel parallel transmission

Equipped with 2 independent fiber optic interfaces (supporting single-mode/multi-mode options, including LC/SC interface types), capable of simultaneously transmitting data from two channels:

Redundancy mode: Two channels transmit the same data, and when one channel fails, it automatically switches to the other to ensure that critical data (such as radar detection data and power dispatch instructions) is not interrupted;

Load balancing mode: Two channels share different data traffic (such as high-definition images from different workstations on the production line and multiple sets of collected data from experimental equipment), breaking through the bandwidth bottleneck of a single channel and adapting to high-capacity real-time data interaction scenarios.

High speed and low latency transmission performance

Supports up to several Gbps transmission rates (depending on the model), with latency controlled in microseconds (<1 μ s):

Satisfy scenarios with high timeliness requirements such as real-time control command issuance in industrial automation and high-speed interaction of tactical data in national defense;

The fiber optic transmission medium itself has anti electromagnetic interference and low signal attenuation characteristics. Combined with the signal shaping and CRC verification functions of the module, it further ensures data integrity and avoids errors in long-distance transmission.

VMEbus deep compatibility and collaboration

Fully compliant with the VMEbus standard, it can seamlessly collaborate with Motorola series VME control units (such as MVME-162, MVME-320B processor boards) as a slave module:

Receive communication configuration instructions (such as speed and transmission mode) from the main control through the VME bus, and synchronously feedback the operating status (connection status, fault alarm) of the two channels;

Support VME interrupt response, which can actively report events such as "channel failure" and "data reception completion" to the main control, facilitating the system to quickly handle exceptions.

Industrial grade high reliability design

Adopting a reinforced hardware solution to adapt to harsh operating environments:

Environmental tolerance: The working temperature covers a wide temperature range of -40 ℃ to+85 ℃, with an anti vibration level of 10-500Hz and 1.5g. It can adapt to scenarios such as vehicle mounted (railway/ship), outdoor base stations, and military field deployments;

Anti interference and protection: Integrated optoelectronic isolation circuit (isolation voltage ≥ 2500Vrms), in compliance with IEC 61000-4 electromagnetic compatibility standard, to resist strong electromagnetic radiation and surge impact; Supports continuous operation for 7 × 24 hours, with a long mean time between failures (MTBF), meeting the "uninterrupted communication" requirements of critical task systems.

 Motorola MPMC222双纤维卡  产      品      展      示      

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