D-Link DGS-6608 — установка и подключение Ethernet-коммутаторов Layer 3 [109/111]

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DGS-6600 Layer 3 Chassis Ethernet Managed Switch Hardware Installation Guide

Appendix B Connectors and Connection Media

1000BASE-T/100BASE-TX/10BASE-T Port

A 1000BASE-T/100BASE-TX/10BASE-T port is a port that can automatically adjust between three different speed rates

and automatically determine whether to operate in MDI or MDIX crossover mode. In order to take advantage of the

1000BASE-T speed rate, the user needs to use CAT5e or higher cabling, which supports a maximum length of 100M. The

1000-BASE-T speed rate complies with IEEE 802.3ab. The Switch’s 1000BASE-T port uses all four pairs of the cable for

transmission. The following diagram shows how the twisted pair cables are connected for a 1000BASE-T port.

Figure B-1 Straight-Through Vs Crossover Schematic Diagram for the four twisted pair required for

1000BASE-T

In addition to the cable types described above, 100BASE-TX/10-BASE-T connections can also use lower grade

cabling, such as 100-ohm Category 3, 4, and 5 cables for 10Mbps connections, and 100-ohm Category 5 cables

for 100Mbps connections, which can be run for a length of up to 100 Meters. The following table shows the

pinouts used by 100BASE-TX/10BASE-T.

Figure B-1 shows how the twisted pair cables are connected for a 10BASE-T/100BASE-TX straight-through and

crossover connection.

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

Table B-1 Pinouts for 10BASE-T/100BASE-TX