Nortel Networks 1000BASE-SX, 1000ASE-XD, 1000BASE-LX, 1000BASE-ZX manual 1000BASE-XD

188Appendix B Installing a Gigabit Interface Converter (GBIC)

1000BASE-XD

The Model 1000BASE-XD GBIC provides Gigabit Ethernet connectivity using SC duplex single-mode fiber connectors. High-performance optical transceivers enable Gigabit Ethernet link distances up to 50 kilometers (km) over single-mode fiber. The ports operate in full-duplex mode only.

Table 52 describes standards, connectors, cabling, and distance for the Model 1000BASE-XD GBIC.

Table 52 Model 1000ASE-XD GBIC specifications

Type	Specifications
Standards	Conformity to the following standards:
	802.3z, Ethernet full duplex
Connectors	SC duplex 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.

Note: The Model 1000BASE-XD GBIC is based on proprietary signaling and is compatible with Accelar 1000 Series XD modules.

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