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Fiber optic also known as optical fiber is a commonly used communication medium in telephone systems, cables, TV's and internet. It is a glass or plastic or fiber strand, which helps in carrying signals from one place to another. Today most of the telecommunication companies are using fiber optic cable because of its large advantages over existing copper wires. This includes speed, long distance communication, low attenuation and space saver. Though to maintain these cables a good qualified technician is required, which has all the knowledge of the fiber optic testing equipment and fiber cable? Mentioned below are the tools that come under fiber optic testing: - Power meter: It is a hand held device, which is used to measure power in an optical fiber. It works both as an optical fiber power measurement tool and fiber optical loss measurement tool. Its working specifications are:
- Wavelength-(nm) @ 800~1650nm
- Range-(dBm) -70~+3 or -50~+26
- Calibrated wavelength-(nm) 850,1300,1310,1490,1550
- Battery: 3AA 1.5V power supply battery
- Dimension-(mm) 152x74x26
- Light source: This equipment is used to measure fiber optic loss for any single or multiple mode cables. Usually it works with the fiber optic power meters in order to measure both the power and loss of signal. Its working specification are:
- Wavelength-(nm) 650 1310/1550 850/1300
- Result stability-¡À0.05dB/15mins; ¡À0.1dB/ 8hours
- Battery- 3 AA 1.5V batteries
- Dimension-(mm) 152X74X26
- Multimeter: The above mentioned power meter and light source equipment usually are used together for fiber optic test work. But instead of carrying both the equipments technician can use fiber optic multimeter equipment, which is a combo tester that performs both the function of testing of power and loss of signal. Its specification are:
- Wavelength-850nm, 980nm, 1300nm, 1310nm and 1550nm
- Result stability-±0.05dB/15mins; ±0.1dB/ 8hours
- It has a rechargeable battery with battery charger
- Frequency modulation-270Hz,1KHz, 2KHz
- Fault locator: It is a pen type device, which is used for fiber optic inspection. Thus a technician can easily locate a breakpoint, bend or crack in the fiber optic cable. Its specification are:
- Wavelength- 650nm±30nm
- Battery-2AAA; which has life of more than 24 hours
- Small and easy to carry
- Distance-3~5km 9~11km
- Fiber optic talk set: This set consists of fiber optic light source and transceivers, which helps the technicians to do communication from one end to another, if any problem is found. Its specification are:
- Wavelength-1310/1550nm
- Distance covering- 80km max
- Rechargeable battery and operating time is for 5 hours
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