How does OTDR Tester help to an ISP?
INTRODUCTION:
An optic time domain reflectometer is an optoelectronic instrument used to characterize an optical fiber. An OTDR is the optical equivalent of an electronic time domain reflectometer. It measures losses of the Internet and finds faults in the optic cable. It is the most effective tool for identifying an error in fiber cables.
How do the OTDR works?
OTDR works as Radar, initially, it sends a signal for the optical fiber and then after It comes back from one point to the information. This is the procedures of OTDR again and again. The OTDR works indirectly. The sources and powers meters, which measures the data loss of fiber optic cable plant directly. The measurements will correlate well with actual system loss when the source and meter duplicate the transmitter and receiver of the fiber optic transmission links.
What will the maximum length and width of the fiber need?
The maximum length and width of fiber to OTDR µs (1,000 ns) pulse width will test up to 40 km of Corning SMF-28e fiber @1310nm and 50 km @ 1550 nm.
What is the principles and characteristics of OTDR?
The working principles and characteristics of OTDR are that the OTDR accurately produces the optoelectronic integrated fiber-optic test equipment that produced by use of the backscatter during the Rayleigh scattering and Fresnel reflecting in the optical transmission. OTDR is a device that manually can visible the error affected in the cable line without any limits. I depended execute the defaults that occur in location and enumerates the problem in manually. We need the OTDR tester for the fiber Internet testing which is the essential part that provides the accurate delivery that is so reliable and robust services without any default.
Testing procedures and customer specification in the installation?
Each and every cable should be tested from end to end loss and with the OTDR it should ensure that the installation is connected correctly and properly. With this confirmation, the customers will also be asked the installers to reverify with loss test and bidirectional test to provide accurate and reliable cable documentation to certify their work. Further, the OTDR can use for the troubleshooting problems like as break location due to dig-ups.
What are the functions of OTDR?
The functions of OTDR is it inserts a series of optical pulses in the fiber under testing and gets from the same at the end of the fiber. it is the sources that the light is scattered or else reflected back from the point with the fiber. In this OTDR, an optical power meter is used for the purpose of measuring the optical signal power. This term will be used for testing average power in a fiber optics system.
Advantages of OTDR:
The advantages of this are it is extremely high bandwidth data transmission medium does offer the bandwidth that fiber does no any other cable is based on this process. In this OTDR it is easy to provide sufficient space increase the bandwidth, by using recent generation of fiber optic cabling. DWDM (dense wavelength division multiplexing) it lends the fiber optic cabling and also it has the ability to turn various wavelength of light traveling down the fiber on and off at. In the fiber optic, they have a very low rate of bit error, this will result in resistant to electromagnetic interference. So that to the fiber optic transmission is virtually noise free. Otdr tester will show early about the damage of cable and fiber provide an extremely secure transmission.
Disadvantages of OTDR:
The disadvantages of OTDR is installation costs are still high, special test equipment is often required, susceptibility to physical damage i.e. Fiber cable is compact and small it can easily and able affect (cut or damage) during the installation or constructing it. The key is that the phenomenon comes from the natural reflection and absorption of impurities inside the optical fiber.
Conclusion:
There is the number of OTDR models available in the market, need to make the right choice for their needs cost efficiency and maximum productivity. The next upcoming OTDR tester will analyze and examine the other important parameters like as measurements range, linearity, measuring and comparing the dynamic range, and also the different limitations of OTDR.
