What is the Huawei SLD4IRU201?
The Huawei SLD4IRU201 is a SFP+ optical transceiver, listed by the manufacturer as "Function Module,OptiX RTN 905,SLD4IRU201,4*GE(RJ45)+2*GE(SFP)+4*10GE(SFP+)+2*STM-1(SFP)+16*E1+2*IF IDU Unit(-48VDC),2F". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
