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13
Installation and Networking Guidelines for Optical Routing
Preface
Nortel Networks* optical routing system supports high-speed data
communications in metropolitan area networks (MANs) by:
• Connecting Gigabit Ethernet ports with fiber optic networks.
• Combining multiple wavelengths on a single fiber to expand available
bandwidth.
The system components include:
This book contains the following topics:
• “Describing the optical routing system” on page 17
• “Calculating transmission distance” on page 27
• “Installing the shelf, OADM, and OMUX” on page 35
• “CWDM OADM specifications” on page 45
• “CWDM OMUX specifications” on page 47
• “Handling and cleaning fiber optic equipment” on page 49
Component Function
CWDM Gigabit interface
converters (GBICs)
Convert signals in a switch to laser light for connection to a
fiber optic network.
Passive optical
multiplexing devices
Combine laser light signals received from GBICs onto a
single fiber for transport to the destination. Separates the
wavelengths at the destination and routes them onto
different fibers which terminate on separate GBICs.
Passive optical shelf Houses the multiplexers.