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Connectors Duplex SC single-mode fiber optic
connector
Cabling Single-mode fiber optic cable
Distance Up to 50 km using single-mode fiber
cable, depending on the quality of the fiber
Optical budget 17 dB
Laser Transmitter Characteristics
Wavelength 1550 ± 10 nm
Maximum spectral width 0.2 nm
Maximum launch power 0 dBm or 1.0 mW
Minimum launch power into
fiber
-5 dBm or 0.3 mW
Distance 50 km
Receiver Characteristics
Wavelength 1200 to 1550 nm
Minimum receiver sensitivity -22 dBm
Maximum input power -3 dBm
Note: Nortel Networks recommends that you use an
in-line attenuator for shorter link distances to avoid
overloading the receiver.
Table 5 1000BASE-XD GBIC specifications (continued)
Type Specifications
CWGBIC.fm Page 12 Wednesday, December 12, 2001 11:26 AM