Datasheet

KSZ8041TL/FTL/MLL
DS00002436B-page 28  2017 Microchip Technology Inc.
3.17.1 STRAIGHT CABLE
A straight cable connects an MDI device to an MDI-X device, or an MDI-X device to an MDI device. Figure 3-4 depicts
a typical straight cable connection between a network interface card (NIC) and a switch, or hub (MDI-X).
TABLE 3-9: MDI/MDI-X PIN DEFINITION
MDI MDI-X
RJ-45 Pin Signal RJ-45 Pin Signal
1 TD+ 1 RD+
2TD–2RD–
3 RD+ 3 TD+
6 RD– 6 TD–
FIGURE 3-4: TYPICAL STRAIGHT CABLE CONNECTION
Receive PairTransmit Pair
Receive Pair
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Transmit Pair
Modular Connector
(RJ-45)
NIC
Straight
Cable
10/100 Ethernet
Media Dependent Interface
10/100 Ethernet
Media Dependent Interface
Modular Connector
(RJ-45)
HUB
(Repeater or Switch)