What is the Sandstone FOFL-DW4744-PTSI9?
The Sandstone FOFL-DW4744-PTSI9 is a network/telecom equipment component, listed by the manufacturer as "OADM Flat Filter, 4 channel DWDM channel 47-44, (1539.77 to 1542.14) Industrial Temperature, Pigtail/Splice-On with East/West Configuration". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.