A-2 APPENDIX A: SPECIFICATIONSRJ-45 Connector Pin AssignmentsFigure A-1 shows the RJ-45 connector pin assignments.Figure A-1 RJ-45 Connector Pin AssignmentsWhen Category 5 UTP cable is used, the pin assignments areidentical for 10BASE-T and 100BASE-TX.Cabling RequirementsWhen properly connected to a 10BASE-T network, theFast EtherLink EISA adapter operates in 10BASE-T mode andsupports standard 10BASE-T cable topologies and types,including Category 3, 4, or 5 UTP for 10 Mbps.When properly connected to a 100BASE-TX network, theFast EtherLink EISA adapter operates in 100BASE-TX modeand supports Category 5 UTP cable only.In either case, the cable, quality, distance, and connectors mustcomply with the EIA/TIA 568 “Commercial Building WiringStandard” and the Technical Services Bulletin TSB38 standards.The maximum UTP cable distance is 100 meters at eitherspeed.R D – ( 6 )R D + ( 3 )T D – ( 2 )T D + ( 1 )8765412 345678321
