What is the Sandstone AT10012-0D?
The Sandstone AT10012-0D is a SFP optical transceiver module, listed by the manufacturer as "Atrica Compatible 1G SFP, 1000BASE-ZX, 1550 nm, 120km SMF LC, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.