RLSD

AcronymDefinition
RLSDReceived Line Signal Detector
RLSDReceived Line Signal Detect (signal line)
RLSDRichard Lees Steel Decking (Derbyshire, East Midlands, England, UK)
RLSDRigid-Lock Stack Down (subsea drilling system)
RLSDResearch and Laboratory Services Division (United Kingdom)
RLSDRed Lake School District (Red Lake, MN)