... Web Site: www .adc. comFrom North America, Call Toll Free: 1-8 0 0-3 6 6-3 891 • Outside of North America: + 1-9 5 2-9 3 8-8 080 Fax: + 1-9 5 2-9 1 7-3 237 • For a listing of ADC s global sales office locations, ... the Ethernet designers developed, CSMA/CD, follows the contention model.WHITE PAPER Fundamentals of Ethernet Technology Fundamentals of Ethernet Technology Page 7 Ethernet DevicesA number of ... Multimode fiber Half- and full-duplex802.3z1000BASE-LX 1 Gbps 5 kilometers Singlemode fiber Full-duplex1000BASE-SX 1 Gbps 220 - 550 meters Multimode fiber Full-duplex1000BASE-T 1 Gbps 100 meters...