Connection
9
The following table lists the pin definitions of the 10/100Base-T(X) RJ45 port.
Table 4 Pin Definitions of 10/100Base-T(X) RJ45 Port
Pin
MDI-X Signal
MDI Signal
POE
1
Receive Data+ (RD+)
Transmit Data+ (TD+)
V+
2
Receive Data- (RD-)
Transmit Data- (TD-)
V+
3
Transmit Data+ (TD+)
Receive Data+ (RD+)
V-
6
Transmit Data- (TD-)
Receive Data- (RD-)
V-
4
Unused
Unused
V+
5
Unused
Unused
V+
7
Unused
Unused
V-
8
Unused
Unused
V-
Note:
"+" and "-" indicate level polarities.
1, 2, 3, and 6 are data wires; 4, 5, 7, and 8 are free wires. Both types of wires are used for PD power
supply at the same time.
Wiring Sequence
Figure 10 Connection Using Straight-through/Cross-over Cable
Note:
The color of the cable for RJ45 connector meets the 568B standard: 1-orange and white, 2-orange,
3-green and white, 4-blue, 5-blue and white, 6-green, 7-brown and white, and 8-brown.
