What is the Sandstone AT10012-0D-R?
The Sandstone AT10012-0D-R is a SFP optical transceiver module, listed by the manufacturer as "GBE SFP 1000Base-LH 120KM, 1550nm, LC Industrial DDM Nokia-Siemens Atrica Compatible". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.