... transceivers from 155M to 40G, including SFP, GBIC, SFP+, XENPAK, X2 , XFP, BIDI,CWDM,DWDM and other special transceiver modules. 100 ... % compatible with major brands :Cisco,Juniper, H3C, HP, Huawei etc.One year replacement ;Three ... With DDM10.Operating Temperature: 0~70 °C Application SONET/OC48 Cisco compatible OC48 SR SFP 1310nm 2km optical transceiver