Overview Product Description 251189 New-No Box; B+B 485LDRC9 Serial Converter; RS-232 to RS422/485; 10-30VDC; . Item is New; unused; no factory packaging. Austin Surplus SKU: 251189 Location: GRG-R19-P18-S04-F-0008232 Product Videos Custom Field MPN 485LDRC9 Product Reviews