OEO Optical Amplifier to Extend Fiber Line Beijing Human Information Technology Co., Ltd. Base Info Model NO.:HM-A100Function:Extend Fiber LineTransmission Mode:2rWork Method:OeoTrademark:humanitySpecification:ISO certifiedOrigin:ChinaHS Code:8517699000 Description Pre:Fiber Optical (FC-FC) Next:American Non-Polarized 2 Pin