描述
一、核心特性
超高速光纤通信
带宽：支持40 Gbps全双工数据传输（每方向20 Gbps），满足大规模数据实时传输需求（如高分辨率雷达信号、4K/8K视频流）。
延迟：典型往返延迟<500 ns，接近本地操作响应速度，确保远程控制实时性。
距离：
多模光纤（OM4）：最长300米（适用于实验室或短距离部署）。
单模光纤（OS2）：最长10公里（适用于野外、跨建筑或城市级分布式系统）。
无缝PXI Express集成
兼容性：完全兼容PXI Express标准，支持与NI PXIe-1085、PXIe-1082等机箱无缝连接。
触发同步：通过光纤传输PXI触发信号，实现远程机箱与主控制器纳秒级同步（抖动<10 ns），支持多模块协同测试（如MIMO雷达、相控阵天线）。
时钟同步：支持IEEE 1588 PTP协议，时间同步精度<100 ns，确保多机箱数据时间戳一致性。
灵活的系统扩展
级联能力：支持多级级联（如主控制器→PXIe-8379→另一PXIe-8379），构建树型或链型拓扑，扩展系统规模。
混合拓扑：可与NI PXIe-8370（40 Gbps）或PXIe-8364（10 Gbps）模块混合使用，适应不同带宽需求。
热插拔：支持机箱运行时插拔，简化系统维护与升级。
高可靠性设计
冗余电源：支持双电源输入，提高系统可用性。
工业级温度范围：工作温度0°C至55°C，存储温度-40°C至70°C，适应恶劣环境。
ESD保护：符合IEC 61000-4-2标准，防止静电损坏。
二、技术规格
参数规格
接口类型1×QSFP+光纤接口（支持40 Gbps全双工）
光纤类型多模光纤（OM4，最长300米）
单模光纤（OS2，最长10公里）
带宽每方向20 Gbps（全双工40 Gbps）
延迟往返延迟<500 ns（典型值）
触发同步PXI触发总线通过光纤传输，抖动<10 ns
时钟同步IEEE 1588 PTP，精度<100 ns
电源需求12 V DC，功耗<15 W
尺寸PXI Express模块尺寸（3U，单槽）
重量约220 g
三、与同类产品对比
特性NI PXIe-8379 NI PXIe-8370 NI PXIe-8364
带宽40 Gbps（全双工）40 Gbps（全双工）10 Gbps（全双工）
最大距离10 km（单模）10 km（单模）300 m（多模）
延迟<500 ns<1μs<2μs
触发同步抖动<10 ns<10 ns<50 ns
适用场景超高速、长距离分布式测试高速、中长距离测试中低速、短距离测试
四、应用场景
航空航天与国防
雷达与电子战：在野外测试场中，通过10公里单模光纤连接远程雷达前端与控制中心，实时传输高带宽脉冲信号，避免电磁干扰。
卫星通信：在地面站与卫星天线之间部署PXIe-8379，实现低延迟、高可靠性的遥测数据传输。
汽车电子测试
整车HIL测试：在风洞或试验场中，通过光纤连接远程PXI Express机箱，同步采集ECU信号、摄像头视频流与传感器数据，支持实时闭环控制。
自动驾驶测试：在真实道路环境中，远程控制多台PXI系统，模拟复杂交通场景，验证自动驾驶算法。
半导体与电子制造
晶圆测试：在洁净室内通过光纤连接探针台与测试仪器，减少电气噪声干扰，提高测试精度。
高速串行测试：传输PCIe Gen 5、100G Ethernet等高速信号，验证芯片协议一致性。
科研与能源
粒子加速器控制：在大型加速器设施中，通过长距离光纤同步多个控制节点，确保束流稳定性。
智能电网监测：在变电站间部署PXIe-8379，实时汇总电力参数，支持故障预测与能源调度。
1.Core Features
Ultra-high-speed fiber communication
Bandwidth:supports 40 Gbps full-duplex data transmission(20 Gbps in each direction),meeting the needs of large-scale real-time data transmission(such as high-resolution radar signals,4K/8K video streams).
Latency:Typical round-trip delay<500 ns,close to the local operation response speed,ensuring the real-time performance of remote control.
Distance:
Multimode fiber(OM4):up to 300 meters(suitable for laboratories or short-distance deployment).
Single-mode fiber(OS2):up to 10 kilometers(suitable for outdoor,cross-building or city-level distributed systems).
Seamless PXI Express integration
Compatibility:fully compatible with the PXI Express standard,supporting seamless connection with chassis such as NI PXIe-1085 and PXIe-1082.
Trigger synchronization:PXI trigger signals are transmitted through optical fiber to achieve nanosecond synchronization between remote chassis and main controller(jitter<10 ns),supporting multi-module collaborative testing(such as MIMO radar,phased array antenna).
Clock synchronization:Supports IEEE 1588 PTP protocol,time synchronization accuracy<100 ns,ensuring the consistency of multi-chassis data timestamps.
Flexible system expansion
Cascading capability:Supports multi-level cascading(such as main controller→PXIe-8379→another PXIe-8379),building tree or chain topologies,and expanding system scale.
Hybrid topology:Can be mixed with NI PXIe-8370(40 Gbps)or PXIe-8364(10 Gbps)modules to meet different bandwidth requirements.
Hot plug:Supports plugging and unplugging during chassis operation,simplifying system maintenance and upgrades.
High reliability design
Redundant power supply:Supports dual power input to improve system availability.
Industrial temperature range:Operating temperature 0°C to 55°C,storage temperature-40°C to 70°C,adaptable to harsh environments.
ESD protection:Complies with IEC 61000-4-2 standard to prevent electrostatic damage.
2.Technical specifications
Parameters
Interface type 1×QSFP+fiber interface(supports 40 Gbps full-duplex)
Fiber type Multimode fiber(OM4,up to 300 meters)
Single-mode fiber(OS2,up to 10 kilometers)
Bandwidth 20 Gbps per direction(full-duplex 40 Gbps)
Delay Round trip delay<500 ns(typical value)
Trigger synchronization PXI trigger bus transmitted via fiber,jitter<10 ns
Clock synchronization IEEE 1588 PTP,accuracy<100 ns
Power requirement 12 V DC,power consumption<15 W
Dimensions PXI Express module size(3U,single slot)
Weight about 220 g
3.Comparison with similar products
Features NI PXIe-8379 NI PXIe-8370 NI PXIe-8364
Bandwidth 40 Gbps(full-duplex)40 Gbps(full-duplex)10 Gbps(full-duplex)
Maximum distance 10 km(single mode)10 km(single mode)300 m(multi-mode)
Delay<500 ns<1μs<2μs
Trigger synchronization jitter<10 ns<10 ns<50 ns
Applicable scenarios Ultra-high speed,long-distance distributed testing High-speed,medium-long distance testing Medium-low speed,short-distance testing
IV.Application scenarios
Aerospace and defense
Radar and electronic warfare:In the field test field,the remote radar front end and the control center are connected through 10 km single-mode optical fiber to transmit high-bandwidth pulse signals in real time to avoid electromagnetic interference.
Satellite communication:Deploy PXIe-8379 between the ground station and the satellite antenna to achieve low-latency,high-reliability telemetry data transmission.
Automotive electronics testing
Vehicle HIL testing:In the wind tunnel or test field,the remote PXI Express chassis is connected through optical fiber to synchronously collect ECU signals,camera video streams and sensor data to support real-time closed-loop control.
Autonomous driving test:Remotely control multiple PXI systems in real road environments,simulate complex traffic scenarios,and verify autonomous driving algorithms.
Semiconductor and Electronic Manufacturing
Wafer testing:Connect the probe station and test instruments through optical fiber in a clean room to reduce electrical noise interference and improve test accuracy.
High-speed serial testing:Transmit high-speed signals such as PCIe Gen 5 and 100G Ethernet to verify chip protocol consistency.
Scientific research and energy
Particle accelerator control:In large accelerator facilities,synchronize multiple control nodes through long-distance optical fiber to ensure beam stability.
Smart grid monitoring:Deploy PXIe-8379 between substations to summarize power parameters in real time to support fault prediction and energy scheduling.
