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Brocade Communications Systems 53-1002580-01 1000BASE-T Pin Assignments, Cable Testing for Existing Category 5 Cable

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Brocade 6910 Ethernet Access Switch Hardware Installation Guide 29

53-1002580-01

Twisted-Pair Cable and Pin Assignments B

FIGURE 24 CROSSOVER WIRING

1000BASE-T Pin Assignments

All 1000BASE-T ports 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.

The table below shows the 1000BASE-T MDI and MDI-X port pinouts. These ports require that all

four pairs of wires be connected. Note that for 1000BASE-T operation, all four pairs of wires are

used for both transmit and receive.

Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable

for 1000BASE-T connections. Also be sure that the length of any twisted-pair connection does not

exceed 100 meters (328 feet).

Cable Testing for Existing Category 5 Cable

Installed Category 5 cabling must pass tests for Attenuation, Near-End Crosstalk (NEXT), and

Far-End Crosstalk (FEXT). This cable testing information is specified in the ANSI/TIA/EIA-TSB-67

standard. Additionally, cables must also pass test parameters for Return Loss and Equal-Level

Far-End Crosstalk (ELFEXT). These tests are specified in the ANSI/TIA/EIA-TSB-95 Bulletin, “The

Additional Transmission Performance Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”

TABLE 7 1000BASE-T MDI and MDI-X PORT PINOUTS

Pin MDI Signal Name MDI-X Signal Name

1 Bi-directional Pair A Plus (BI_DA+) Bi-directional Pair B Plus (BI_DB+)

2 Bi-directional Pair A Minus (BI_DA-) Bi-directional Pair B Minus (BI_DB-)

3 Bi-directional Pair B Plus (BI_DB+) Bi-direct ional Pair A Plus (BI_DA+)

4 Bi-directional Pair C Plus (BI_DC+) Bi-directional Pair D Plus (BI_DD+)

5 Bi-directional Pair C Minus (BI_DC-) Bi-directional Pair D Minus (BI_DD-)

6 Bi-directional Pair B Minus (BI_DB-) Bi-directional Pair A Minus (BI_DA-)

7 Bi-directional Pair D Plus (BI_DD+) Bi-directional Pair C Plus (BI_D C+)

8 Bi-directional Pair D Minus (BI_DD-) Bi-directional Pair C Minus (BI_DC-)

Orange

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

Green

Brown

Blue

White/Orange Stripe

White/Green Stripe

White/Blue Stripe

White/Brown Stripe

End BEnd A

EIA/TIA 568B RJ-45 Wiring Standard

10/100BASE-TX Crossover Cable

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