802[1]IEEE Std 802.3ab-1999 (Supplement to IEEE Std 802.3, 1998 Edition) Information technology― Telecommunications and information exchange between systems― Local and metropolitan area networks―Specic requirements― Supplement to Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications― Physical Layer Parameters and Specifications for 1000 Mb/s Operation Over 4-Pair of Category 5 Balanced Copper Cabling, Type 1000BASE-T Sponsor LAN MAN Standards Committee of the IEEE Computer Society Approved 26 June 1999 IEEE-SA Standards Board Abstract: Type 1000BASE-T PCS, type 1000BASE-T PMA sublayer, and type 1000BASE-T Medium Dependent Interface (MDI) are defined. This supplement provides fully functional, electrical and mechanical specifications ……