Hardware Installation and Reference Guide Appendix A — Connectors and Connection Media
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Appendix A — Connectors and Connection Media
1000BASE-T/100BASE-TX/10BASE-T Port
1000BASE-T/100BASE-TX/10BASE-T is a 10/100/1000M auto-negotiation port that supports auto MDI/MDIX Crossover.
Compliant with IEEE 802.3ab, 1000BASE-T requires Category 5 or Category 5e 100-ohm UTP or STP (STP is recommended) with a
maximum distance of 100 m.
The 1000BASE-T port uses four pairs of wires for transmission, all of which must be connected. Figure A-1 shows the connections of
the twisted pairs used by the 1000BASE-T port.
Figure A-1 Connection of Four Twisted Pairs of a 1000BASE-T Port
In addition to the above cables, the 100BASE-TX/10BASE-T can also use 100-ohm Category-3, 4, 5 cables for 10 Mbps, and 100-ohm
Category-5 cables for 100 Mbps, both of which can be up to 100 m. Figure A-2 shows the pin signals for the 100BASE-TX/10BASE-T
port.
Figure A-2 Definitions of Pin Signals for a 100BASE-TX/10BASE-T Port
Figure A-3 shows feasible connections of straight-through and crossover twisted-pair cables for a 100BASE-TX/10BASE-T port.
Figure A-3 Twisted Pair Connections of a 100BASE-TX/10BASE-T Port
Optical Fiber Connection
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