What is the Sandstone GLC-LX-SMD?
The Sandstone GLC-LX-SMD is a SFP optical transceiver module, listed by the manufacturer as "Cisco Compatible 1.25G SFP, 1000BASE-LX, 1310 nm, 10km SMF LC, DDM, C-Temp, BLUE Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.