ConnectZone supplies a wide variety of both SM & MM fiber optic loopbacks, for your fiber optic testing.
Connector types available in either as singlemode loopback or a multimode loopback
both in a Single mode or multi mode style, including our New Rugged Molded Fiber optics loopback pictured below.
Fiber Optic Loopback Specifications
Insertion Loss < 0.2dB
MTBF guaranteed to exceed 500 mating cycles
Operating temperature range -50 to 85 degree centigrade, <0.2dB