Communication and Network Riser (hardware, standard) (CNR) A specification for audio, modem, USB and Local Area Networking interfaces of core computer logic chip sets. Intel introduced CNR on 2000-02-07. It was mainly developed by hardware and software developers who helped release AMR (Audio/Modem Riser) and is used by several computer manufacturers.
http://www.computerhope.com/jargon/c/cnr.htm. Last updated: 2007-03-15