
12
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