If you mean the typical premise cabling and jacks for data comunication networks (Cat 5, 5e, or 6 UTP and RJ45 jacks) here are a few links.

http://www.hubbell-premise.com/main.htm
http://www.generalcable.com/North_America/NA_DCStandards.htm
http://www.techfest.com/networking/cabling.htm

Ed