5895-01-390-0881 (OPTIMA)
NSN 5895-01-390-0881 (NIIN 01-390-0881) is a communications modem in Federal Supply Class 5895, Miscellaneous Communication Equipment — an item which modulates and demodulates one or more electrical signals. Manufacturer part number OPTIMA; also referenced as OPTIMA 2400 (Hayes Microcomputer Products Inc).
NIIN assigned May 1994; DEMIL A (none required); ESD/EMI-sensitive; export Schedule B 9030.90.8040; ships at 1 lb / 0.0454 cu ft.