将所有三个FIU连接到单个现场设备。FTU主要包括
前端信号调节、现场信号所需的无源元件
过压保护和EMI/RFI滤波。当安装在受信任的
控制器或扩展器机箱，FTU现场连接器互连至
连接在机箱后部的输入/输出电缆组件。
SmartSlot链接通过从HIU传递到现场连接
FTU。这些信号直接传输至输入/输出电缆组件并进行维护
与FTU上的输入/输出信号隔离。SmartSlot链接是智能的
活动和备用模块之间的连接，以便在
模块更换。
现场接口单元（FIU）是模块的一部分，包含
与特定类型的现场输入/输出接口所需的特定电路
信号。每个模块有三个FIU，每个片一个。对于TMR 24 Vdc数字
输入模块，FIU包含一个单独的模数（A/D）转换器
对于40个现场输入中的每一个。
FIU从HIU接收逻辑隔离电源。金融情报室提供
针对
FIU电路。一个隔离的6.25 Mbit/s串行链路将每个FIU连接到
HIU切片。
FIU还测量一系列机载“内务”信号，以协助
监控模块的性能和运行条件。
这些信号包括电源电压、电流消耗、车载
参考电压和电路板温度。
Upon receiving your QuickPanel+ operator interface carefully inspect all shipping containers for damage. If any part of the system is damaged, notify the carrier immediately. The damaged shipping container should be saved as evidence for inspection by the carrier. As the consignee, it is your responsibility to register a claim with the carrier for damage incurred during shipment. However, we will fully cooperate with you should such action be necessary. After unpacking the unit, record all serial numbers. Serial numbers are required if you need to contact Customer Care during the warranty period. Shipping containers and packing material should be saved in case it is necessary to transport or ship the unit. Verify that all components of the system have been received and that they agree with your order. If the system received does not agree with your order, contact Customer Care (see “Contact Information” for phone numbers and email addresses). Before you attempt to power up the operator interface for the first time, inspect the unit for loose or damaged components. If damage is found (for example, in the form of bent component leads or loose components), contact GE Intelligent Platforms for additional instructions. Do not apply power to the unit if it has visible damage. Applying power to a unit with damaged components could cause additional damage.
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