光时域反射计 (OTDR)

OTDR (optical time-domain reflectometer) is an instrument that understands the uniformity, defect, fracture, and coupling of the optical fiber through the analysis of the measurement curve. It is made according to the principle of backscattering and Fresnel reverse of light. It uses the backscattered light generated when light propagates in the optical fiber to obtain attenuation information. It can be used to measure optical fiber attenuation, connector loss, fiber fault location and understanding Loss distribution along the length of the fiber, etc. It is an indispensable tool in the construction, maintenance and monitoring of optical cables. OTDR has the advantages of short test time, fast test speed, and high test accuracy.

The working principle of OTDR:

Optical cable testing is an important technical means for the construction, maintenance and repair of optical cables. At present, the most effective method is to use OTDR (Optical Time Domain Reflectometer) to monitor the optical fiber connection and measure and evaluate the connection loss. This method is intuitive, reliable, and it can print the fiber backscatter signal curve. In addition, while monitoring, the actual transmission distance from the office to each joint can be measured relatively accurately. Maintenance is very necessary for accurately detecting faults and effectively handling them. At the same time, maintenance personnel are required to master the performance of the instrument, skilled operation skills and accurate judgment of the signal curve characteristics.

The OTDR test is performed by sending light pulses to the optical fiber, and then receiving the returned information at the OTDR port. When the optical pulses are transmitted in the optical fiber, due to the characteristics of the optical fiber itself, connectors, joints, bending or other similar events, the optical pulses will be scattered and reflected. Part of the scattered and reflected will be returned to the OTDR. The useful information returned is measured by the OTDR detector and they are used as time or curve segments at different locations in the fiber. From sending the signal back to the signal, then determining the glass material, you can calculate the distance in the time required for the speed of light.

Features of 5000 Series OTDR

1.一体化设计,智能坚固。
2. 小巧轻便,携带方便。
3. 1625nm 带滤波器的在线检测模块可作为在线 FTTx/PON 检测的选项。
4. 多种测量模式,使用简单,一键完成测量。
5、实时测量功能,方便监控拼接过程。
6、内置大功率可视激光源,准确定位较近的故障点。
7. 内部稳定的激光源。
8. 可选配光功率计功能。
9. 警告功能可防止OTDR模块被光信号损坏。
10. 集成截图功能。
11、通过RJ45接口提供PC远程访问和控制功能。
12.支持多国语言显示和输入,界面友好,可视化键盘。
13. 集成大内存。
14、提供数据模拟软件处理、生成、打印报告。
15.电量指示功能。
16、户外作业时间长。


Post time: 2021-01-25

感言

Lomoveishiy – 芬兰

我需要那些连接我在三楼的电脑才能在那个房间访问互联网,而 ISP 只在一楼安装了他们的调制解调器。将光纤跳线放下后,将所有电缆插入两侧的这些媒体转换器,链接立即出现。比我想象的要容易得多!

雷蒙德 – 美国

很棒的经验——设备开箱即用——只需要插入电缆,我们就完成了。我也喜欢启用巨型帧的可能性,虽然我们目前不需要此功能,但拥有此选项很棒。

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