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Appendix B Installing a Gigabit Interface Converter (GBIC) 187
Using the BayStack 420 10/100/1000 Switch
Table 51 describes standards, connectors, cabling, and distance for the Model
1000BASE-LX GBIC.
Table 51 Model 1000BASE-LX GBIC specifications
Type Specifications
Standards Conformity to the following standards:
802.3z, 1000BASE-LX
Connectors Duplex SC fiber optic connector
Cabling 62.5 µm MMF optic cable
50 µm MMF optic cable
10 µm SMF optic cable
Distance 1804 ft. (550 m) using 62.5 µm MMF optic cable
1804 ft. (550 m) using 50 µm MMF optic cable
16405 ft. (5 km) using 10 µm SMF optic cable
Wavelength 1300 nm
Optical budget 10.5 dB
Laser Transmitter Characteristics
Minimum launch power -9.5 dBm
Maximum launch power -3 dBm
Receiver Characteristics
Minimum receiver sensitivity -20 dBm
Maximum input power -3 dBm
Note: When multimode fiber is used in long distance applications,
external, removable, mode-conditioning patch cords may be required to
prevent differential mode delay (DMD). You can order mode
conditioning patch cords through Nortel Networks:
• SC-SC Mode Conditioning Patch Cord 62.5/125—part number
AA0018035
• SC-SC Mode Conditioning Patch Cord 50/125—part number
AA0018036