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("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].

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.


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

SONET CIRCUITSOptical  Electrical    SpeedChannel  Channel      (Mbps)

 OC-1      STS-1        51.84
 OC-3      STS-3       155.52
 OC-3c     STS-3c      155.52
 OC-12     STS-12      622.08
 OC-12c    STS-12c     622.08
 OC-48     STS-48     2488.32
 OC-192    STS-192    9953.28
 OC-768    STS-768   39813.12

 OC  = Optical Carrier
 STS = Synchronous Transport Signal
   c = concatenated
References in periodicals archive ?
In addition, IXC traded 10,000 miles of its OC48 fiber for a 20% equity stake in PSInet.
Products available in this range include the OptiStar OC48 and OptiStar OC12 network adapter cards.
Customers can provision additional network capacity with rates up to OC48 connection speeds with the click of a mouse via the AT&T customer portal, AT&T BusinessDirect.
This new facility utilizes installed OC48 Fiber from Verizon's multiple Central Offices, ATT and MCI.
5 miles of fiber and four OC48 systems, as well as a state of the art network operations center.
The PHY1093 functions optimally for applications up to 3Gbps, making it ideal for SONET multirate modules up to OC48.