3Com CoreBuilder 9000 Installation Manual page 5

1000BASE-LX GBIC Transceivers
1000BASE-LX GBIC transceiver supports these connections:
Direct connection to single-mode fiber-optic cable.
Connection to multimode fiber through a conditioned launch cable
To ensure optimal performance, compatibility, and regulatory
compliance, use only conditioned launch cables that 3Com supports.
For a list of currently supported conditioned launch cables, see this
3Com Web site:
http://www.3Com.com/gigabit_ethernet/gbics
Table 2 shows the transmission ranges for each connection
Table 2 1000BASE-LX GBIC Multimode and Single-Mode
Transmission Ranges
Fiber Type
Multimode
Multimode
Multimode
Single-Mode 9
Modal
Diameter Bandwidth
(microns) (MHz
62.5 500
50 400
50 500
–
Transmission Range
km) in meters (feet)
•
2 – 550 (6.6 – 1804.6)
2 – 550 (6.6 – 1804.6)
2 – 550 (6.6 – 1804.6)
2 – 10,000 (6.6 – 32,810)
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