MTRJ adaptor Fiber optic standard adaptor, MTRJ-MTRJ, MM, simplex, square, plastic. MTRJ Type ... / EIA, and IEC standards2 Type: duplex3 Singlemode,multimode optional4 Optical performance 100% factory testedTechnical Parameter:1 Insertion loss : ≤0. ... Data processing networks7 Industrical and medical8 Premise Installations9 Optical switch interframe connection10 Asynchronous Transmission11 Mode(ATM)