MPO loopback is a small device used to test or diagnose the network, especially for parallel optics 40/100G networks.
MPO Loopback link Transmitter (TX) and Receivers (RX) positions of MPO transceivers interfaces, looping the signal from the transmitter to the Receivers of a device. It provides an efficient way to test the transmitting and receiving functions of the device.
The MPO Loopback Options Include:
1. 8, 12 and 24 fibers
2. OM3, OM4, Singlemode
3. Polarity Type 1 & 2
4. With or without PIN