Optical Fiber Loopback (Lookback), also known as optical module self-loop test loop, is used to test the signal backhaul in the system or network system, and can detect various potential abnormalities in the network link by returning the signal (mainly connecting the transmitter of the TX to the receiving side of the RX in pairs). The optical signal in the optical fiber will reduce the optical power due to absorption, scattering and other reasons during the transmission process, and the optical fiber loss has an important impact on the communication distance.

Because optical fiber connectors are divided into LC, SC, FC, ST, MU, MT, MPO/MTP, etc., there are also very corresponding types of optical fiber loopers.

MPO lookback OM3

MTP/MPO fiber optic looper

The MTP/MPO loopback contains an MPO loopback jumper, which threads both ends of the optical fiber into an MTP/MPO connector, so that the optical path is in the same connector, and the signal is returned to it without changing the signal or repeating the signal. It can provide an effective solution to test the transmitting ability and reception sensitivity of network equipment, especially in 40/100G network communication, various potential phenomena can be located through backhaul signals, so as to achieve effective testing and evaluation of individual components or interfaces and networks on paired fiber networks.

feature
Single-mode and multi-mode are optional, and the end face PC or APC8° are optional 
Frame color optional (purple, aqua, beige, yellow, turquoise)
Whether or not to install a guide pin is optional
 
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Fiber optic communication network
Optical system commissioning
System cabling
System loop test
Optical cable loop detection
Troubleshooting

Accommodates 8-, 12-, and 24-fiber MTP/MPO connectors, as well as several fiber configurations, to accommodate the ports under test. The streamlined, rugged housing design provides greater stability and reliability.

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SKU 04 LC OM4回路器

Other optical fiber loopers such as LC, SC, FC, etc

Depending on the connector, the circuit breaker also includes a variety of types such as LC, SC, FC, etc. Available in single and multi-mode options, end PC or APC. With 40G/100G optical transceivers, it is used for optical fiber testing, network repair, and equipment fault diagnosis, which is an ideal choice for testing transmit optical power and receiving sensitivity.

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