DS2

from The Free On-line Dictionary of Computing (8 July 2008)
DS2

   <communications> A {DS level} and {framing specification} for
   digital signals in the North American digital transmission
   hierarchy.  A DS2 signal uses 96 {PCM} channels and has a
   transmission rate of 6.31 Megabits per second, twice that of
   {DS1C}.

   (1995-02-07)
    
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
DS2
       Digital Signal level 2, "DS-2"
       
    

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