LoopbacksLoopback plugs are used for network diagnostics, system configuration testing, and device burn-in. Looping back the signal allows for testing of the optical network.
MPO loopbacks are offered with 8, 12, and 24 fiber options in a compact footprint. Straight, crossed, or QSFP pin-outs are available in multiple fiber types.
Singlemode loopbacks are available with or without added attenuation.