IFS POE201-MS/4 4-Port PoE-af Injector User Manual 7
Appendix A: Network Connection
RJ-45 Pin Assignments
10/100Mbps, 10/100Base-TX
RJ-45 Connector pin assignment
Contact
MDI
Media Dependant
Interface
MDI-X
Media Dependant
Interface -Cross
1
Tx + (transmit)
Rx + (receive)
2
Tx - (transmit)
Rx - (receive)
3
Rx + (receive)
Tx + (transmit)
4, 5
IEEE 802.3af DC 48V
6
Rx - (receive)
Tx - (transmit)
7, 8
IEEE 802.3af DC 0V
The standard RJ-45 receptacle/connector
There are 8 wires on a standard UTP/STP cable and each
wire is color-coded. The following shows the pin allocation and
color of a straight cable and crossover cable connection:
Figure A-1: Straight-Through and Crossover Cable