QSW-4700 Series Switches Hardware Installation and Reference Guide
Appendix
71
7.
APPENDIX
7.1. Connectors and Media
7.1.1. 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
–1 shows
100BASE-TX/10BASE-T pin assignments.
Table 7- 1 100BASE-TX/10BASE-T Pin Assignments
Pin
Socket
Plug
1
Input Receive Data+
Output Transmit Data+
2
Input Receive Data-
Output Transmit Data-
3
Output Transmit Data+
Input Receive Data+
6
Output Transmit Data-
Input Receive Data-
4, 5,
7, 8
Not Used
Not Used
Figure 7
–2 shows wiring of straight-through and crossover cables for 100BASE-TX/10BASE-T.
