Foc Communication CO.,LTD
FOC COMMUNICATION CO.,LTD Leading Manufacturer of Fiber PLC Splitter and Fiber Optic Patch Cord
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SC Singlemode Fiber Optic Patch Cord Loopback SC / APC Low Insertion Loss
Fiber Optic Loopback is designed to provide a media of return patch for a fiber optic signal. Typically it is used for fiber optic testing applications or network restorations. For the testing applications, the loopback signal is used for diagnosing a problem. Sending a loopback test to network equipment, one at a time, is a technique for isolating problems.
Fiber Optic Loopback Testing
Typically, a loopback test is a test in which a signal is sent from a communication device and looped back to the device as a way to determine whether it is functioning well or as a way to troubleshoot a defective node in the network. As for fiber optic loopback testing, optical loopbacks are used to verify the operational reliability of the device. Using fiber optic loopback cable or fiber optic loopback module for data transmission, the signal emitted by the device is looped from the transmit (Tx) end of an active component back to the receive (Rx) end of the same component.
Application
When it comes to practical application, fiber optic loopback test is often employed for checking fiber optic transceivers. Since transceiver has two ports for receiving and transmitting the light signal, it is necessary to test the ports to see whether they are still under operation. Thus, fiber optic loopback test is the most convenient way for transceiver maintenance. The testing process is by routing the laser signal from the transmitter port back to the receiver port. Then the transmitted pattern is compared with the received pattern to make sure they are identical and have no error.
Features
Loopback cable for many test applications
Singlemode, 9/125 fiber optic cable
SC connectors with precision ceramic ferrule for maximum optical performance
Molded connector to secure connection
Fully tested cables to ensure superior quality and durability
Jacket Style: PVC (yellow)
Operating Wavelength: 1310 nm
Insertion Loss<0.30 dB
Return Loss> 60 dB
RoHS Compliant
Specifications
| Connector | FC, SC, ST, LC | |
| UPC | APC | |
| Insertion Loss | ≤0.3dB | |
| Return Loss | ≥50dB | ≥60dB |
| Cable Outer Diameter(mm) | ￠0.9, ￠2.0, ￠3.0 | |
| Durability | ≤0.3dB(1000 matings) | |
| Interchangeability | ≤0.2dB | |
| Operating Temperature | -40℃～+80℃ | |
Fiber Optic Loopback, Optical Fiber Loopback, Fiber Loopbacks