B-9
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
78-15827-06B0
Appendix B Cable Specifications
Fast Ethernet Connector Pinouts
Fast Ethernet Connector Pinouts
This section illustrates the Fast Ethernet 100BaseTX (RJ-45) connector and lists its pinout and signal
descriptions.
Figure B-5
shows the 100BaseTX RJ-45 connector, and
Table B-6
lists its pinout. The 1-port Fast
Ethernet network module RJ-45 port actively terminates wire pair 4 and 5 and wire pair 7 and 8.
Common-mode termination reduces electromagnetic interference (EMI) and susceptibility to
common-mode sources.
Figure B-5
100BaseTX RJ-45 Connector
Table B-5
10BaseT Connector (RJ-45) Pinouts
Pin
1
1.
Any pin not described is not
connected
Description
1
TX+
2
TX–
3
RX+
4
–
5
–
6
RX–
7
–
8
–
Table B-6
RJ-45 Connector Pinout
Pin
Signal
1
TX+
2
TX–
3
RX+
6
RX–
H1567
Pin 1
Pin 8
RJ-45 (both ends)