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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

Summary of Contents for CoreBuilder 3500

Page 1: ...lex 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 pe...

Page 2: ...ot touch any connections inside the chassis with your hands or fingers Fiber Safety Precautions The GBIC ports on your system use lasers To ensure your safety when you install or work with these GBIC...

Page 3: ...on The procedure is similar for all relevant CoreBuilder chassis To ensure optimal performance compatibility and regulatory compliance use only GBIC transceivers that 3Com supports For a list of GBIC...

Page 4: ...T 1000BASE GBIC module GBIC port Duplex SC connector R M O D S T A T 1 2 2 3 4 1 R X T X R X T X R P R I M O D S T A T S E C 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2...

Page 5: ...For a list of currently supported GBICs see this 3Com Web site http www 3com com gigabit_ethernet gbics If the transceiver is not working properly the system displays an appropriate error message as d...

Page 6: ...Web site http www 3com com util enterprise html Unqualified GBIC Checksum match error Meaning The system uses checksum error detection to verify the integrity of the GBIC data If the system detects a...

Page 7: ...sceivers 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...

Page 8: ...true the text GBIC Non qualified appears in the portType field of the Ethernet display even though the GBIC is qualified and functions properly Disregard this incorrect value Calculating the Link Bud...

Page 9: ...tem B 75 km of fiber with 2 mating connectors 1 75 km of single mode fiber x 0 25 dB per km 18 75 dB fiber attenuation 2 2 mating connectors x 0 50 dB per connector 1 dB connector attenuation 3 18 75...

Page 10: ...ion 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...

Page 11: ...zation RMA number or User Service Order USO number marked on the outside of the package and sent prepaid and packaged appropriately for safe shipment and it is recommended that they be insured or sent...

Page 12: ...ESSENTIAL PURPOSE DISCLAIMER Some countries states or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain pro...

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