What is the Sandstone GLC-LX-SM-I-ST?
The Sandstone GLC-LX-SM-I-ST is a SFP optical transceiver module, listed by the manufacturer as "Cisco Compatible 1G SFP, 1000BASE-LX, 1310 nm, 10km SMF LC, DDM, I-Temp, *Supports up to 20km". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.