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Brocade Communications Systems 53-1002580-01 Adjusting Existing Category 5 Cabling to Run 1000BASE-T, Fiber Standards

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30 Brocade 6910 Ethernet Access Switch Hardware Installation Guide

53-1002580-01

Twisted-Pair Cable and Pin Assignments

B

Note that when testing your cable installation, be sure to include all patch cables between switches

and end devices.

Adjusting Existing Category 5 Cabling to Run 1000BASE-T

If your existing Category 5 installation does not meet one of the test parameters for 1000BASE-T,

there are basically three measures that can be applied to try and correct the problem:

1. Replace any Category 5 patch cables with high-performance Category 5e or Category 6 cables.

2. Reduce the number of connectors used in the link.

3. Reconnect some of the connectors in the link.

Fiber Standards

The International Telecommunication Union (ITU-T) has standardized various fiber types for data

networks. These are summarized in the following table.

TABLE 8 FIBER STANDARDS

ITU-T Standard Description Application

G.651 Multimode Fiber

50/125-micron core

Short-reach connections in the 1300-nm or

850-nm band.

G.652 Non-Dispersion-Shifted

FiberSingle-mode, 9/125-micron core

Longer spans and extended reach.

Optimized for operation in the 1310-nm

band. but can also be used in the 1550-nm

band.

G.652.C Low Water Peak

Non-Dispersion-Shifted Fiber

Single-mode, 9/125-micron core

Longer spans and extended reach.

Optimized for wavelength-division

multiplexing (WDM) transmission across

wavelengths from 1285 to 1625 nm. The

zero dispersion wavelength is in the

1310-nm region.

G.653 Dispersion-Shifted Fiber

Single-mode, 9/125-micron core

Longer spans and extended reach.

Optimized for operation in the region

from 1500 to 1600-nm.

G..654 1550-nm Loss-Minimized

FiberSingle-mode, 9/125-micron core

Extended long-haul applications.

Optimized for high-power transmission in

the 1500 to 1600-nm region, with low loss

in the 1550-nm band.

G.655 Non-Zero Dispersion-Shifted

FiberSingle-mode, 9/125-micron core

Extended long-haul applications.

Optimized for high-power dense

wavelength-division multiplexing (DWDM)

operation in the region from 1500 to

1600-nm.

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