MPO Loopback Connector is designed for testing of MPO parallel links and for device burn-in. By creating a loop of signal from transmitter to receiver within one MPO plug, it forms optical link which allows testing of optical network segment by segment. 

◆4 fibers, 8 fibers and 12 fibers available
◆Standard loss and low loss available
◆Single mode APC and multi-mode PC available
◆Standard and customized fiber sequence available
◆Stable and reliable testing parameters of male and female connectors’ pin positioning