A-6
Cisco 7201 Installation and Configuration Guide
OL-11364-04
Appendix A Specifications
Gigabit Ethernet RJ-45 Port Pinouts
For related documentation, see the following documents:
• Gigabit Interface Converter (GBIC) Module and Small Form-F acto r Pluggable (SFP) GBIC Module
Installation Information and Specifications
• Cisco SFP Optics for Gigabit Ethernet Applications Data Sheet
• Cisco 1000BASE-T SFP Data Sheet
Gigabit Ethernet RJ-45 Port Pinouts
The Cisco 7201 router has RJ-45 ports for the two 10/100/1000 Gigabit Ethernet/Fast Ethernet/Ethernet
connections. In addition, the Cisco 7201 router has an RJ-45 Fast Ethernet Management port. The RJ-45
ports support IEEE 802.3ab (Gigabit Ethernet) and IEEE 802.3u (Fast Ethernet) interfaces compliant
with 10BASET, 100BASETX, and 1000BASET specifications.
The RJ-45 ports support standard straight-through and crossover Category 5 UTP cables with RJ-45
connectors. Cisco does not supply Category 5 UTP cables; these cables are available commercially.
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits 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.
Statement 1021
Figure A-1 shows an RJ-45 port and connector. Table A-11 lists the pinouts and signals for the RJ-45
port.
Figure A-1 RJ-45 Port and Connector
6. For fiber types 50/125 µm, NA = 0.20 fiber and 62.5/125 µm, NA = 0.275 fiber.
7. For fiber types 50/125 µm MMF and 62.5/125 µm MMF.
1RJ-45 connector
Tab le A-11 RJ-45 Receptacle Pinouts
Pin FE Signal GE Signal
1TX DATA+1Tx A+
2TX DATA– Tx A–
3RX DATA+2Rx B+
4N/C Tx C+
5N/C Tx C–
57574
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