Nortel Networks 312865-A manual Optical budget 17 dB

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Table 5 1000BASE-XD GBIC specifications (continued)

Type

Specifications

 

 

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

-5 dBm or 0.3 mW

fiber

 

 

 

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.

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Contents Installing Gigabit Interface Converters Copyright 2001 Nortel Networks Product Safety Introduction Product descriptionGbic labeling Gbic model list Model number Product number DescriptionHandling, safety, and environmental guidelines Installing a GbicInserting the Gbic into the switching module Removing a GbicGbic specifications Specification Descriptions1000BASE-SX Standards, connectors, cabling, and distanceType Specifications 1000BASE-LX 1000BASE-LX specifications 1000BASE-XD Optical budget 17 dB 1000BASE-ZX Gbic specifications 1000BASE-ZXConnecting to Nortel Networks online Hard-copy technical manuals How to get help TelephoneAsia Pacific 61 2 China 800