1.What is the typical rack height in telecom installations?
1.电信设备安装中，典型的机架高度是多少？
2.Which describes A-BUS technology?
2.以下哪项描述了 A-BUS 技术？
3.Sound system component connecting power transformer?
3.连接电源变压器的音响系统组件？
4.Self-looping modular connector for T1 troubleshooting?
4.用于 T1 故障排除的自环模块化连接器？
5.Which connectors are typically used with RS-232 serial ports on older computers or industrial devices?
5.较旧的计算机或工业设备上，RS-232 串行端口通常使用哪种连接器？
6.Which passive component stores energy in an electric field?
6.哪种无源元件在电场中储存能量？
7.What is the main physical difference between LC and SC fiber connectors?
7.LC和SC光纤连接器的主要物理区别是什么？
8.When comparing common analog and digital video transmission methods, which order correctly ranks them from lowest to highest video quality?
8.比较常见的模拟和数字视频传输方法，以下哪种顺序正确地按视频质量从低到高排列？
9.For analog component video (RGB/YPbPr) signals, which connector type is standard for each individual coaxial cable?
9.对于模拟分量视频 (RGB/YPbPr) 信号，每根同轴电缆的标准连接器类型是什么？
10.Serial Digital Interface (SDI) is a professional video standard that transmits uncompressed digital video and audio over coaxial cables like RG59 or RG6. Which connector type is most commonly used for
10.串行数字接口 (SDI) 是一种专业视频标准，可通过 RG59 或 RG6 等同轴电缆传输未压缩的数字视频和音频。SDI 连接最常用的连接器类型是什么？
