主要特性与技术指标
N7745C 是是德科技市场的 N7745A 光功率计的替代产品，它通过深入优化实现了高测量吞吐量，可用于表征多端口光学元器件（例如多路复用器、PON 分路器、波长选择开关（WSS）和 ROADM）。该仪器具有高速测量数据采集能力和传输速率更快的数据接口，并且使用了双端口 RAM，可以同时进行测量和读取结果而不必中断操作。另外，其全新的功率量程可以更快切换，从而避免测量和后期处理过程中出现不必要的时延。该仪器的功率阈值触发功能现在还支持瞬态测量。
N7745C 同样也采用了深受信赖的 N7740 光纤连通性概念，通过卡扣式快速锁定的四路适配器进行连接。即使仪器正在测量其他设备，被测器件也可以轻松地连接到四口光纤适配器。四路光纤适配器随后可以快速锁定，提供可重复连接与断开的高精密连接。使用此类适配器，您可以更简单地完成光纤对准，尤其适用于机架安装仪器，并可以更轻松地按照希望的顺序连接端口，避免连接出错或造成连接器损坏。四路适配器支持 MU、FC、SC 和 LC 连接器以及裸光纤连接器。高通道密度有助于节省空间；多台仪器可以轻松整合到单个系统中，并通过 LAN 或 USB 连接进行并行编程；在整个系列内通用的触发功能；可通过浏览器访问的现代化用户界面――所有这一切为用户提供便捷的仪器功能配置。
Main Features and Technical Specifications
The N7745C is a replacement product for the N7745A optical power meter from National Instruments. It achieves high measurement throughput through in-depth optimization and can be used to characterize multi-port optical components (such as multiplexers, PON splitters, wavelength selection switches (WSS), and ROADM). This instrument has high-speed measurement data acquisition capabilities and a faster data interface, and uses dual-port RAM, allowing for simultaneous measurement and result reading without interrupting the operation. Additionally, its new power range can be switched more quickly, thereby avoiding unnecessary delays during measurement and post-processing. The power threshold triggering function of this instrument now also supports transient measurements.
The N7745C also adopts the trusted N7740 optical connectivity concept, connecting through a snap-lockable four-port adapter. Even when the instrument is measuring other devices, the tested component can be easily connected to the four-port optical adapter. The four-port optical adapter can then be quickly locked, providing a highly precise connection that can be repeatedly connected and disconnected. Using such adapters, you can more easily complete fiber alignment, especially for rack-mounted instruments, and can more easily connect ports in the desired order, avoiding connection errors or connector damage. The four-port adapter supports MU, FC, SC, and LC connectors as well as bare fiber connectors. High channel density helps save space; multiple instruments can be easily integrated into a single system and programmed in parallel via LAN or USB; a universal trigger function across the entire series; a modern user interface accessible via a browser - all of this provides users with convenient instrument function configuration.
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