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oc
(redirected from OC3)

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OC
(Optical Carrier) The transmission speeds in SONET/SDH networks. See SONET. See also DS.

 SONET CIRCUITS

 Optical  Electrical
 Channel  Channel         Speed (Mbps)

          VT-1.5       1.7
 OC-1     STS-1       51.84 (28 DS1s or 1 DS3)
 OC-3     STS-3      155.52 (3 STS-1s)
 OC-3c    STS-3c     155.52 (concatenated)
 OC-12    STS-12     622.08 (12 STS-1, 4 STS-3)
 OC-12c   STS-12c    622.08 (12 STS-1, 4 STS-3c)
 OC-48    STS-48    2488.32 (48 STS-1, 16 STS-3)
 OC-192   STS-192   9953.28 (192 STS-1, 64 STS-3)
 OC-768   STS-768  39813,12 (768 STS-1, 256 STS-3)

 OC  = Optical Carrier
 STS = Synchronous Transport Signal
center-to-center, on center
The distance between the center line of one element, member, part, or component (as a stud or joist) and the center line of the next.
(language)Oc - ("Oh see!") A parallel logic language.

["Self-Description of Oc and its Applications", M. Hirata, Proc 2nd Natl Conf Japan Soc Soft Sci Tech, pp. 153-156, 1984].
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