Brocade Communications Systems 53-1002580-01 B

Brocade 6910 Ethernet Access Switch Hardware Installation Guide 27

53-1002580-01

Appendix

BCables

Twisted-Pair Cable and Pin Assignments

For 10/100BASE-TX connections, the twisted-pair cable must have two pairs of wires. For

1000BASE-T connections the twisted-pair cable must have four pairs of wires. Each wire pair is

identified by two different colors. For example, one wire might be green and the other, green with

white stripes. Also, an RJ-45 connector must be attached to both ends of the cable.

CAUTION

DO NOT plug a phone jack connector into any RJ-45 port. Use only twisted-pair cables with RJ-45

connectors that conform with FCC standards.

CAUTION

Caution: Each wire pair must be attached to the RJ-45 connectors in a specific orientation.

The figure below illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the

connectors in the same orientation when attaching the wires to the pins.

FIGURE 22 RJ-45 CONNECTOR PIN NUMBERS

10BASE-T/100BASE-TX Pin Assignments

Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections:

100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better

cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does

not exceed 100 meters (328 feet).

The RJ-45 ports on the switch base unit support automatic MDI/MDI-X operation, so you can use

straight-through cables for all network connections to PCs or servers, or to other switches or hubs.

In straight-through cable, pins 1, 2, 3, and 6, at one end of the cable, are connected straight

through to pins 1, 2, 3, and 6 at the other end of the cable. When using any RJ-45 port on this

switch, you can use either straight-through or crossover cable.

11

88

Contents

Main Brocade Communications Systems, Incorporated Document History Title Publication number Summary of changes Date Contents About This Document Chapter 1 Introduction Chapter 2 Installing the Switch Chapter 3 Making Network Connections Appendix A Troubleshooting Appendix B Cables Appendix C Specifications Appendix D Caution and Danger Notices 1 Appendix E Caution and Danger Notices 2 Appendix F Glossary Index Page Figures Page Tables Page About This Document Audience Supported hardware and software Document conventions Text formatting Related publications Page Page 1 10G Regional Ring Overview FIGURE 1 Page FIGURE 4 FIGURE 5 Switch Architecture Network Management Options Description of Hardware SFP Slots 10/100/1000BASE-T Ports 10/100/1000BASE-T Management Port (The Craft Interface) Console Port Alarm Interface Port Port and System Status LEDs FIGURE 6 TABLE 1 Power Supply Sockets FIGURE 7 1 FIGURE 8 TABLE 2 Page 2 Selecting a Site Ethernet Cabling Equipment Checklist Package Contents Mounting Desktop or Shelf Mounting FIGURE 10 Rack Mounting Page Installing an Optional SFP Transceiver FIGURE 13 Grounding the Chassis FIGURE 14 Connecting to a Power Source Connecting DC Power FIGURE 15 FIGURE 16 Connecting AC Power FIGURE 17 1 1 Connecting to the Console Port Wiring Map for Serial Cable Connecting to the Alarm Port FIGURE 19 Wiring Map for Alarm Cable TABLE 4 Page Page 3 Connecting Network Devices Twisted-Pair Devices Cabling Guidelines Fiber Optic Devices FIGURE 21 A Diagnosing Switch Indicators In-Band Access Page B Twisted-Pair Cable and Pin Assignments FIGURE 22 10BASE-T/100BASE-TX Pin Assignments Straight-Through Wiring FIGURE 23 Crossover Wiring TABLE 6 EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Straight-through Cable 1000BASE-T Pin Assignments Cable Testing for Existing Category 5 Cable TABLE 7 EIA/TIA 568B RJ-45 Wiring Standard 10/100BASE-TX Crossover Cable Adjusting Existing Category 5 Cabling to Run 1000BASE-T Fiber Standards TABLE 8 C Physical Characteristics Switch Features Management Features Standards Compliances Page D English / French Cautions Cautions CAUTION MISE EN GARDE CAUTION MISE EN GARDE Dangers CAUTION MISE EN GARDE CAUTION MISE EN GARDE Dangers Page Page E German / Spanish / Chinese Cautions Cautions Cautions E Dangers Dangers Dangers E Spanish (only) Page Page Spanish (only) E Page Page Chinese (Traditional) Page Page Page Page Page Page Page Page Chinese (Simplified) Page F Page Page Page Index Numerics A G H I L M N O