Nortel Networks 10292FA, 10396EA manual Parts of the optical routing system

18Chapter 1 Describing the optical routing system

Parts of the optical routing system

The optical routing system includes the following parts:

•Gigabit interface converters (CWDM GBICs)

•Optical add/drop multiplexers (CWDM OADMs)

•Optical multiplexer/demultiplexers (CWDM OMUXs)

•Optical shelf to house the multiplexers

Table 1 shows the parts of the optical routing system, and the color matching used to distinguish the eight wavelengths.

Table 1 Parts of the optical routing system

Wavelength		GBIC	Multiplexer part number			Optical shelf
(longwave)	Color code	part number	OADM	OMUX-4	OMUX-8	part number
1470 nm	Gray	AA1419017	AA1402002		AA1402010	AA1402001
1490 nm	Violet	AA1419018	AA1402003	AA1402009
1510 nm	Blue	AA1419019	AA1402004
1530 nm	Green	AA1419020	AA1402005	AA1402009
1550 nm	Yellow	AA1419021	AA1402006
1570 nm	Orange	AA1419022	AA1402007	AA1402009
1590 nm	Red	AA1419023	AA1402008
1610 nm	Brown	AA1419024	AA1402011	AA1402009

Gigabit interface converter description

Nortel Networks* coarse wavelength division multiplexed Gigabit Interface Converters (Figure 2) convert signals in a switch to laser light for connection to a fiber optic network. A CWDM GBIC transmits and receives optical signals at one of eight specific wavelengths.

Nortel CWDM GBICs use Avalanche Photodiode (APD) technology to improve transmission distance and optical link budget.

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