Catalyst 6500 Series Switches Installation Guide - Ipland

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Cables Appendix B Transceivers, Module Connectors, and Cable Specifications Table B-30 Port Mode 2 Signaling and Pinouts (Port Mode Switch Out) (continued) Console Port Console Device 4 (GND) GND 5 (GND) GND 6 (TxD) Output 7 (DSR) Input 8 (CTS) 1 Input 1. Pin 1 is connected internally to Pin 8. Mode-Conditioning Patch Cord When using the long wavelength/long-haul (LX/LH) GBIC with 62.5-micron diameter MMF, you must install a mode-conditioning patch cord (Cisco product number CAB-GELX-625 or equivalent) between the GBIC and the multimode fiber (MMF) cable on both the transmit and receive ends of the link. A mode-conditioning patch cord is required for 1000BASE-LX/LH applications over FDDI-grade, OM1, and OM2 fiber cable types. Mode-conditioning patch cords should not be used for applications over OM3 fiber cable (laser-optimized fiber cable). For additional information on mode-condtioning patch cords, refer to the Use of Mode Conditioning Patch Cables in Gigabit Ethernet and 10 Gigabit Ethernet Laser-Based Transmissions bulletin at: http://www.cisco.com/en/US/prod/collateral/modules/ps5455/product_bulletin_c25-530836.html Note We do not recommend using the LX/LH GBIC and MMF without the patch cord for very short link distances of 33 to 328 feet (10 to 100 meters). The result could be an elevated bit error rate (BER). The patch cord is required to comply with IEEE standards. IEEE found that link distances could not be met with certain types of fiber-optic cable due to a problem in the center of some fiber-optic cable cores. The solution is to launch light from the laser at a precise offset from the center by using the patch cord. At the output of the patch cord, the LX/LH GBIC complies with the IEEE 802.3z standard for 1000BASE-LX. Patch Cord Configuration Example Figure B-21 shows a typical configuration using the patch cord. Figure B-21 Patch Cord Configuration Patch cord Building cable plant Patch cord 1000BASE-LX/LH port Rx Tx Patch panel Patch panel Tx Rx 1000BASE-LX/LH port Link span greater than 984 ft (300 m) 13088 B-36 Catalyst 6500 Series Switches Installation Guide OL-5781-08
Appendix B Transceivers, Module Connectors, and Cable Specifications Cables Patch Cord Installation Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments. Statement 1051 Plug the end of the patch cord labeled “To Equipment” into the GBIC. (See Figure B-22.) Plug the end labeled “To Cable Plant” into the patch panel. The patch cord is 9.8 feet (3 meters) long and has duplex SC male connectors at each end. Figure B-22 Patch Cord Installation To equipment To cable plant 13089 Differential Mode Delay When an unconditioned laser source designed for operation on an SMF cable is directly coupled to an MMF cable, differential mode delay (DMD) might occur. DMD can degrade the modal bandwidth of the fiber-optic cable. This degradation causes a decrease in the link span (the distance between the transmitter and the receiver) that can be reliably supported. The Gigabit Ethernet specification (IEEE 802.3z) outlines parameters for Ethernet communications at a gigabit-per-second rate. The specification offers a higher-speed version of Ethernet for backbone and server connectivity using existing deployed MMF cable by defining the use of laser-based optical components to propagate data over MMF cable. Lasers function at the baud rates and longer distances required for Gigabit Ethernet. The 802.3z Gigabit Ethernet Task Force has identified the DMD condition that occurs with particular combinations of lasers and MMF cable. The results create an additional element of jitter that can limit the reach of Gigabit Ethernet over MMF cable. With DMD, a single laser light pulse excites a few modes equally within an MMF cable. These modes, or light pathways, then follow two or more different paths. These paths might have different lengths and transmission delays as the light travels through the cable. With DMD, a distinct pulse propagating down the cable no longer remains a distinct pulse or, in extreme cases, might become two independent pulses. Strings of pulses can interfere with each other making it difficult to recover data. DMD does not occur in all deployed fibers; it occurs with certain combinations of worst-case fibers and worst-case transceivers. Gigabit Ethernet experiences this problem because of its very high baud rate and its long MMF cable lengths. SMF cable and copper cable are not affected by DMD. MMF cable has been tested for use only with LED sources. LEDs can create an overfilled launch condition within the fiber-optic cable. The overfilled launch condition describes the way LED transmitters couple light into the fiber-optic cable in a broad spread of modes. Similar to a light bulb radiating light into a dark room, the generated light that shines in multiple directions can overfill the existing cable space and excite a large number of modes. (See Figure B-23.) OL-5781-08 Catalyst 6500 Series Switches Installation Guide B-37
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Catalyst 6500 Series Switches Insta
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NOTWITHSTANDING ANY OTHER WARRANTY
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Contents Power Source Interruptions
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Contents Attaching the Interface Ca
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Contents 100-MB Transceivers B-1 1-
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Conventions Preface Chapter Title D
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Conventions Preface Warnings use th
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Conventions Preface Varning! VIKTIG
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Conventions Preface xviii Catalyst
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Related Documentation Preface Obtai
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WS-SUP32-GE-3B Catalyst 6503 Switch
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Catalyst 6503 Switch Chapter 1 Prod
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WS-SUP32-GE-3B Catalyst 6503-E Swit
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Catalyst 6503-E Switch Chapter 1 Pr
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WS-X6408 8 PORT GIGABIT ETHERNET WS
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WS-X6408 WS-X6408 WS-X6408 WS-X6408
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WS-X6408 WS-X6408 WS-X6408 WS-X6408
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FAN STATUS LINK LINK LINK LINK LINK
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Catalyst 6509-NEB Switch Chapter 1
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Catalyst 6509-NEB-A Switch Chapter
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Catalyst 6509-V-E Switch Chapter 1
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Safety Chapter 2 Preparing for Inst
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Site Requirements Chapter 2 Prepari
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WS-X6K-SUP2-2GE OSM-4OC12 POS-SI 4
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WS-X6K-SUP2-2GE SUPERVISOR2 WS-X6K-
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Power Requirements Chapter 2 Prepar
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Cabling Requirements Chapter 2 Prep
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Site Preparation Checklist Chapter
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Chapter 3 Installing the Switch The
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Rack-Mounting Guidelines Chapter 3
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Chassis Installation Kits and Cable
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Installing a Catalyst 6503 or Catal
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CAUTION STATUS LINK CONSOLE LINK LI
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Installing a Catalyst 6504-E Switch
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WS-SUP32-GE-3B CAUTION STATUS LINK
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Installing a Catalyst 6504-E Switch
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WS-X6408 WS-X6408 WS-X6224 24 PORT
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WS-X6408 WS-X6408 WS-X6224 24 PORT
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Installing a Catalyst 6509-NEB or C
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WS-C6500-SFM SWITCH FABRIC MDL WS-C
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Installing a Catalyst 6509-V-E Swit
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Installing a Catalyst 6513 or Catal
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Generic Installation Procedures Cha
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Generic Installation Procedures Cha
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Establishing the System Ground Chap
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OSM-4OC12 POS-SI 2 1 2 1 4 2 3 1 4
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Establishing the System Ground Chap
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Attaching the Interface Cables Chap
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LINK Attaching the Interface Cables
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LINK Attaching the Interface Cables
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Verifying Switch Chassis Installati
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Verifying Switch Chassis Installati
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Removing and Installing the AC-Inpu
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OSM-4OC12 POS-SI 2 1 2 1 4 2 3 1 4
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ALL FASTENERS MUST BE FULLY ENGAGED
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OSM-4OC12 POS-SI 1 2 1 2 1 1 2 2 3
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Removing and Installing the DC-Inpu
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CISCO SYSTEMS, INC Removing and Ins
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CISCO SYSTEMS, INC 1 2 3 4 INPUT OK
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CISCO SYSTEMS, INC Removing and Ins
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CISCO SYSTEMS, INC 1 2 3 4 INPUT OK
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Removing and Installing PEMs Chapte
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Removing and Installing PEMs Chapte
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OSM-4OC12 POS-SI 1 2 1 2 1 1 2 2 3
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Removing and Installing the Fan Tra
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WS-X6K-SUP2-2GE OSM-4OC12 POS-SI OS
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Removing and Installing the Fan Tra
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ACTIVE TX RX RX TX ACTIVE TX RX RX
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Installing the Air Filter Assembly
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Installing the Remote Power Cycling
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Power Supply Compatibility Matrix A
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Power Supply Compatibility Matrix A
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950 W AC-Input and DC-Input Power S
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950 W AC-Input and DC-Input Power S
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1000 W AC-Input Power Supply Append
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1300 W AC-Input and DC-Input Power
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Page 372 and 373: AC Power Cord Illustrations Appendi
Page 382 and 383: Power Supply Redundancy Appendix A
Page 388 and 389: Pluggable Transceivers Appendix B T
Page 410 and 411: Module Connectors Appendix B Transc
Page 418 and 419: Cables Appendix B Transceivers, Mod
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Page 424 and 425: Cleaning the Fiber-Optic Connectors
Page 426 and 427: Cleaning the Fiber-Optic Connectors
Page 428 and 429: Appendix C Repacking the Switch Fig
Page 430 and 431: Appendix D Chassis and Module Power
Page 446 and 447: Solving Problems at the System Comp
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Page 450 and 451: Troubleshooting Modules Appendix E
Page 452 and 453: Contacting Customer Service Appendi
Page 454 and 455: Index 4000 W DC-input power supplie
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Page 458 and 459: Index features table 1-69 form fact
Page 460 and 461: Index Catalyst 6504-E switches 1-14
Page 462 and 463: Index R DC power cable leads color
Page 464: Index U startup E-2 supervisor engi
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Catalyst 6500 Series Switches Installation Guide - Ipland

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