DS-SSMA stands for Direct-Sequence Spread-Spectrum Multiple-Access
DS-TE stands for Differentiated Services-Traffic Engineering (Cisco)
DS-RT stands for Distributed Simulation and Real-Time Applications (IEEE Workshop)
DS/S stands for Data Services Segment
DS/PPM stands for Direct Sequence/Pulse Position Modulation
DS/NTP stands for Datum Secure Network Time Protocol
DS/HD stands for Double Sided/High Density
DS/FH-CDMA stands for Direct-Sequence/Frequency-Hopping Code Division Multiple Access
DS/FH stands for Direct-Sequence/Frequency-Hopping
DS/FFH stands for Direct Sequence/Fast Frequency Hopping