9opt s-1639: indicates internal configuration as 20 1x2 switches; input performance: max switching voltage: 250 vac, 250 vdc; max switching current: 20aac, 20adc; max switching power: 4800va, 600w; switching power: 1aac at 12v AC , 1adc at 5v DC
An electronic subassembly designed to be plugged into one or more basic pieces of test equipment to extend the capabilities of the basic instrument. the basic instrument cannot function without one or more plug-in units (as required) in position.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5895-01-235-5347
NSN 4140-00-027-5150
NSN 5910-01-426-5695
NSN 6620-00-242-3237
NSN 6145-01-351-0845
NSN 5925-01-338-9192
NSN 6150-00-222-0963
NSN 5999-01-555-3280
NSN 5950-01-143-0312
NSN 5905-01-419-8087
NSN 5960-00-054-3277
NSN 5930-01-319-2489