Appendix A Specifications

Gigabit Ethernet RJ-45 Port Pinouts

6.For fiber types 50/125 m, NA = 0.20 fiber and 62.5/125 m, NA = 0.275 fiber.

7.For fiber types 50/125 m MMF and 62.5/125 m MMF.

For related documentation, see the following documents:

Gigabit Interface Converter (GBIC) Module and Small Form-Factor 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-1shows an RJ-45 port and connector. Table A-11lists the pinouts and signals for the RJ-45 port.

Figure A-1 RJ-45 Port and Connector

1

12345678

1

57574

 

RJ-45 connector

 

 

 

 

Table A-11

RJ-45 Receptacle Pinouts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

FE Signal

GE Signal

 

 

 

 

 

 

1

TX DATA+1

Tx A+

 

2

TX DATA–

Tx A–

 

 

 

 

 

 

3

RX DATA+2

Rx B+

 

4

N/C

Tx C+

 

 

 

 

 

5

N/C

Tx C–

 

 

 

 

 

 

 

 

 

 

 

 

Cisco 7201 Installation and Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-6

 

 

 

 

 

OL-11364-04

 

 

 

 

 

 

 

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Cisco Systems CISCO7201 manual Gigabit Ethernet RJ-45 Port Pinouts, Pin FE Signal GE Signal, TX DATA+1, TX Data, RX DATA+2