Standard Networking Configurations

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ATM 155 Mbps uses pairs 2 and 4 (pins 1-2, 7-8)

Ethernet 10Base-T uses pairs 2 and 3 (pins 1-2, 3-6)

Ethernet 100Base-T4 uses pairs 2 and 3 (4T+) (pins1-2, 3-6)

Ethernet 100 Base-T8 uses pairs 1,2,3 and 4 (pins 4-5, 1-2, 3-6, 7-8)

Token-Ring uses pairs 1 and 3 (pins 4-5, 3-6)

TP-PMD uses pairs 2 and 4 (pins 1-2, 7-8)

100VG-AnyLAN uses pairs 1,2,3, and 4 (pins 4-5, 1-2, 3-6, 7-8)