Hardware Installation and Reference Guide    Appendix 
76 
7  Appendix   
7.1  Connectors and Media 
1000BASE-T/100BASE-TX/10BASE-T 
The 1000BASE-T/100BASE-TX/10BASE-T is a 10/100/1000 Mbps auto-negotiation port that supports auto MDI/MDIX Crossover. 
Compliant with IEEE 802.3ab, 1000BASE-T requires Category 5e 100-ohm UTP or STP (STP is recommended) with a maximum distance 
of 100 meters (328 feet). 
1000BASE-T requires all four pairs of wires be connected for data transmission. 
Figure 7-1 1000BASE-T Connection 
 
10BASE-T uses Category 3, 4, 5 100-ohm UTP/STP and 1000BASE-T uses Category 5 100-ohm UTP/STP for connections. Both support 
a maximum length of 100 meters.   
Table 7-    shows 100BASE-TX/10BASE-T pin assignments. 
Table 7- 1 100BASE-TX/10BASE-T Pin Assignments 
 
Figure 7- shows wiring of straight-through and crossover cables for 100BASE-TX/10BASE-T. 
Figure 7-2 100BASE-TX/10BASE-T Connection