Cisco 7200 VXR router User Manual page 121

RJ-45 Connections
The RJ-45 receptacle on the I/O controller is configurable for 100 Mbps full-duplex or
half-duplex operation (half-duplex is the default) and supports IEEE 802.3, Ethernet, and
IEEE 802.3u interfaces compliant with 10BaseT and 100BaseTX specifications.
The RJ-45 receptacle supports standard straight-through and crossover Category 5 UTP
cables (see Figure 3-14). Cisco Systems does not supply Category 5 UTP cables; these
cables are available commercially.
Figure 3-16 shows the RJ-45 connector. Table 3-4 lists the pinouts and signals for the
RJ-45 receptacle.
Figure 3-16
8 7 6 5 4 3 2 1
RJ-45 connector
Warning
to telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN
ports contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use
caution when connecting cables.
Table 3-4
Pin
1
2
3
6
RJ-45 Receptacle and Plug
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits
RJ-45 Receptacle Pinout
Description
Receive Data + (RxD+)
RxD–
Transmit Data + (TxD+)
TxD–
Connecting to the Fast Ethernet Port
Installing a Cisco 7200 VXR Router 3-27