3Com CoreBuilder 3500 Installation Manual
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3Com CoreBuilder 3500 Installation Manual

3Com CoreBuilder 3500 Installation Manual

70-km gigabit ethernet gbic transceiver
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70-km Gigabit Ethernet
GBIC Transceiver

Installation Guide

For 3Com Gigabit Interface Converter (GBIC) Transceivers
Description
The Gigabit Interface Converter (GBIC) ports on your system connect to
Gigabit Ethernet networks through a GBIC transceiver (Figure 1),
providing a high-speed connection over fiber-optic cable. The transceiver
connects to the network using a fiber-optic duplex Subscriber Connector
(SC). You can remove and replace the transceiver with the system on
(which is called hot-swapping).
Figure 1 70-km Gigabit Ethernet GBIC Fiber-Optic Transceiver
To ensure optimal performance, compatibility, and regulatory compliance,
use only GBIC transceivers that 3Com supports. For a list of currently
supported GBICs, see this 3Com Web site:
http://www.3Com.com/gigabit_ethernet/gbics
For the most up-to-date information about this and other 3Com
products, always see the User Guides and Release Notes at this 3Com
Web site:
http://support.3Com.com/nav/switches.htm

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Summary of Contents for 3Com CoreBuilder 3500

  • Page 1: Installation Guide

    (which is called hot-swapping). Figure 1 70-km Gigabit Ethernet GBIC Fiber-Optic Transceiver To ensure optimal performance, compatibility, and regulatory compliance, use only GBIC transceivers that 3Com supports. For a list of currently supported GBICs, see this 3Com Web site: http://www.3Com.com/gigabit_ethernet/gbics...

  • Page 2: Fiber Safety Precautions

    70-km Gigabit Ethernet GBIC Transceiver Installation Guide Table 1 shows the transmission range and other data for this connection. Table 1 70-km Gigabit Ethernet GBIC Single-Mode Transmission Range Fiber Type Single-mode Table 2 shows the optical parameters of the Table 2 Optical Parameters Parameter Transmitter Wavelength...

  • Page 3: Inserting The Transceiver

    If the transceiver does not click when you insert it, turn it over and reinsert it. a Figure 2 shows how to insert the transceiver into a CoreBuilder 3500 GBIC port. b Figure 3 shows how to insert the transceiver into a GBIC port on the CoreBuilder 9000 7-slot chassis.
  • Page 4 70-km Gigabit Ethernet GBIC Transceiver Installation Guide Figure 2 Inserting the 70-km GBIC Transceiver in a CoreBuilder 3500 1000BASE GBIC module Figure 3 Inserting the 70-km GBIC Transceiver in a CoreBuilder 9000 ETHERNET MODEM TERMINAL 10BT 1000 BASE (GBIC) 3C35330...

  • Page 5: Removing The Transceiver

    GBIC, it sets the port type to description at the display ( event log. WARNING The GBIC in Port xx is NOT approved by 3Com & may violate electromagnetic emission or safety requirements for your country. Refer to 3Com's web page (www.3com.com/gigabit_ethernet/gbics) for our current approved list.
  • Page 6 Corrective action reinsert it. If the problem persists, contact 3Com Technical Support. For contact information in the United States and Canada, call 1-800-NET-3COM. For the number to call in other locations, visit the 3Com Web site: Unqualified GBIC: Checksum match error...
  • Page 7 Supported transceivers are those that 3Com has specifically tested and qualified for use with 3Com GBIC systems. Pretesting at 3Com ensures proper functionality, compatibility, and regulatory compliance. If the system detects a transceiver that 3Com does not support, it sets the port type to Unappr.GBIC WARNING The GBIC in Port xx is NOT approved by 3Com &...
  • Page 8 –24 dBm from the minimum launch power of –4 dBm, which yields an optical budget of 20 dB. Your CoreBuilder 3500 is running system software at Release 2.1 or earlier. You have installed or reinstalled a new or replacement GBIC (for example, Model Number 3CGBIC91, 3CGBIC92 or 3CGBIC97).
  • Page 9 70-km Gigabit Ethernet GBIC Transceiver Installation Guide Sample Calculations System A 60 km of fiber with 8 mating connectors: 60 km of single-mode fiber x 0.25 dB per km = 15 dB fiber attenuation 8 mating connectors x 0.50 dB per connector = 4 dB connector attenuation 15 dB fiber attenuation + 4 dB connector attenuation...
  • Page 10 70-km Gigabit Ethernet GBIC Transceiver Installation Guide The budget figures for all three of the sample systems reflect conservative values for fiber attenuation and connector attenuation to assure operation at 70 km under typical to less-than-ideal conditions. Link distances of greater than 70 km can be attained when conditions allow. Fiber attenuation of 0.19 dB per km and lower is possible, allowing link lengths beyond 70 km.

  • Page 11: Imited Warranty

    3Com warrants to the end user (“Customer”) that this hardware product will be free from defects in workmanship and materials, under normal use and service, for one (1) year from the date of purchase from 3Com or its authorized reseller.

  • Page 12: Limitation Of Liability

    3Com registered trademarks are registered in the United States and may or may not be registered in other countries. 3Com, the 3Com logo, CoreBuilder, and SuperStack are registered trademarks of 3Com Corporation.

This manual is also suitable for:

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