oc-48

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

Optical Carrier 48
OC-48

   <networking> (OC-48) A {SONET} rate of 48 * 51.84 = 2488.32
   {megabits} per second.

   [Matches {STS-48}]?

   (1997-05-26)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

OC48
       Optical Carrier level 48 [2488,32 Mbps] (SONET, STM-16), "OC-48"