多项选择题 1.监控主要外场设备基础接地电阻符合要求的有( )。 A.2Ω B.3Ω C.4Ω D.5Ω E.6Ω 2.交通信号监控系统的外场设备包括( )。 A.一氧化碳/透过率检测器 B.车辆检测器 C.气象检测器 D.能见度检测器 E.风速风向检测器 1B415030 收费系统 单项选择题 3.就一条高速公路收费系统来说，下列不属于实现基本功能的系统的是( ...
Provides 1 x 1000 Mbps Ethernet port with RJ45 connector Provides 1 x 1000 Mbps fiber port with SC or SFP mini-GBIC) type connector for 1000Base-SX/LX device Provides DIP switch for full/half duplex setting Supports MDI/MDI-X auto...
8Kp60 HEVC contribution grade decode platform 1U 20" deep short depth unit Telco-grade robustness and security Live input via HLS or RTP streaming protocols across IP HEVC/H.265 8Kp60 Level 5.1 Decoding and Playback 4:2:2 samplin...
2x Intel XL710-BM1 8 ports SFP+ connector PCI-E 3.0 x8 RoHS compliant...
Power supply voltage: +12V, +5V, -12V, -5V, +3.3V, +5VSBY Power requirements: Refer to the CPU Board , add-on Card & Peripherals Operating temperature: 0 ~ 60°C Weight: 0.6kg (weight of board)14-slot Rackmount Chassis Backplan...
1x Intel i350_AM4 4 ports SFP connector 1x PCI-E 2.0 x4 RoHS compliant...
Flex I/O expansion on the front panel for same-side cabling Compatible with MIC-7300, MIC-7500, MIC-7700, MIC-770...
编织同轴屏蔽线缆，钢镍电镀BNC公插头连接器 2xBNC公插头连接器 编织同轴屏蔽线缆 颜色：黑色带有BNC插头的屏蔽同轴电线...
2-Ch USB 2.0 Hi-Speed ports Half size MiniPCIe type compliant with PCI Express TM 2.0 Compliant with xHCI specification Support USB 2.0 and USB 1.1 devicesUSB Port iDoor Module...
Supports surge protection for D.C. power ports with line to line 2 KV, and line to earth 4 KV; for signal ports with 4 KV. Automatic RS-485 data flow control Built-in 15 KV ESD protection for all serial signals Mounts on DIN-rail ...
Realizing flexible wiring by daisy chain and branch connection Easy to maintain To prevent entire system breakdown EtherCAT conformance test tool verified6-port EtherCAT Junction Module...
数据传输速率: 4800 MT/s 容量: 8GB/16GB/32GB 采用原装镁光/三星DRAM IC 内置独立电源管理IC 支持ECC纠错功能 30u "金手指厚度 工作温度: 0°C ~ 85°CSQRAM是研华工业级内存条，采用原厂原装颗粒芯片IC，以及通过严格的测试程序，以确保产品耐用性和可靠性。DDR5 带ECC功能提高了产品的纠错能力，而Fix-Die更好保障产品的质量和兼容性，工作温度可支持宽温-45°C ~ 85°C解决方案。...