Hardware Installation and Reference Guide Appendixes
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7 Appendixes
7.1 Appendix A Connectors and Media
1000BASE-T/100BASE-TX/10BASE-T Port
The 1000BASE-T/100BASE-TX/10BASE-T port is a 10/100/1000 Mbps auto-negotiation port that supports auto
MDI/MDIX Crossover.
Compliant with IEEE 802.3ab, the 1000BASE-T port requires Category 5e 100-ohm UTP or STP (recommended)
with a maximum distance of 100 meters (328 feet).
The 1000BASE-T port requires all four pairs of wires to be connected for data transmission. The following figure
shows the four pairs of wires for the 1000BASE-T port.
Figure 7-1 1000BASE-T Twisted Pair Connections
100BASE-TX/10BASE-T can be interconnected using cables of the preceding specifications. For 10 Mbps, the
100BASE-TX/10BASE-T port can be connected using 100-ohm Category 3, Category 4, and Category 5 cables;
for 100 Mbps, the 100BASE-TX/10BASE-T port can be connected using 100-ohm Category 5 cables with a
maximum connection distance of 100 meters. The following table shows 100BASE-TX/10BASE-T pin
assignments.
Table 7-1 100BASE-TX/10BASE-T Pin Assignments
Straight-Through Crossover
Switch Switch Switch Switch