DD-50 means 50-pin D-SUB
series D subminiature connector in
Electronics
Similar to DD-50
ACS - Adjacent Channel Selectivity
ACT - Alternative Control Technique
ACT - Actual Cycle Time
ACT - Akebono Ceramic Technology
ACT - Air Cooled Triode
ACTM - Accelerated Corrosion Testing Method
ADAC - Advanced Digital Acoustic Coding
View all in Electronics