Nortel Networks 10292FA, 10396EA Environmental and physical requirements, Electrostatic discharge

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36Chapter 3 Installing the shelf, OADM, and OMUX

Figure 14 Class 1M laser warning

LASER RADIATION

DO NOT VIEW DIRECTLY WITH OPTICAL

INSTRUMENTS (MAGNIFIERS)

CLASS 1M LASER PRODUCT

TOTAL RADIANT POWER LEVEL 30 MILLIWATTS

WAVELENGTH RANGE 1450 TO 1650 NM

Warning: Never look directly at the output of a fiber which contains muxed CWDM GBICs, especially with a magnifier. Fiber optic equipment can emit laser light that can injure your eyes.

Environmental and physical requirements

The optical routing system is mounted in an optical shelf with connections at the front of the module. For user access to these connections, a minimum of 36 inches (90 cm) of clearance is required. Keep the area as dust-free as possible.

Caution: To minimize contamination, keep protective caps on all fiber optic connectors when not in use. For more information about handling fiber optic cables, see “Handling and cleaning fiber optic equipment” on page 49.

Electrostatic discharge

To prevent equipment damage, observe the following electrostatic discharge (ESD) precautions when handling or installing the components.

•Ground yourself and the equipment to an earth or building ground. Use a grounded workbench mat (or foam that dissipates static charge) and a grounding wrist strap. The wrist strap should touch the skin and be grounded through a one megohm resistor.

•Do not touch anyone who is not grounded.

•Leave all components in their ESD-safe packaging until installation, and use only a static-shielding bag for all storage, transport, and handling.

212257-B

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Contents Installation and Networking Guidelines for Optical Routing Copyright 2002 Nortel Networks 212257-BInstallation and Networking Guidelines for Optical Routing Canada requirements onlyNortel Networks Inc. software license agreement Installation and Networking Guidelines for Optical Routing 212257-B Contents Chapter Installing the shelf, OADM, and Omux ContentsFigures Figures 212257-B Tables Tables 212257-B Preface Component FunctionBefore you begin Hard-copy technical manualsPreface How to get help Technical Solutions Center TelephonePreface 212257-B Chapter Describing the optical routing system Wavelength division multiplexingParts of the optical routing system Gigabit interface converter descriptionDescribing the optical routing system Parts of the optical routing systemOptical add drop multiplexer description Cwdm Gbic transceiver and labelNetwork add/drop ring application Cwdm Oadm network and equipment side connectionsCwdm Oadm ring configuration example Optical multiplexer/demultiplexer descriptionCwdm OMUX-4 Cwdm Omux in a point-to-point application Cwdm OMUX-8 network and equipment side connectionsCwdm Omux point-to-point configuration example Cwdm Omux in a ring applicationCwdm Omux ring configuration example Describing the optical routing system 212257-B Chapter Calculating transmission distance About transmission distance and optical link budgetHow to calculate expected loss budget How to calculate maximum transmission distanceCalculating transmission distance Point-to-point network configuration example Point-to-point transmission distancePoint-to-point signal loss values Mesh ring transmission distancePoint-to-point maximum transmission distance calculations Mesh ring network configuration Mesh ring signal loss values Mesh ring maximum transmission distance calculationsHub and spoke network configuration Hub and spoke transmission distanceHub and spoke signal loss values Hub and spoke maximum transmission distance calculationsChapter Installing the shelf, OADM, and Omux Preparing for installationExceeding class 1 power level warning Installing the shelf, OADM, and Omux Environmental and physical requirementsElectrostatic discharge Installing the shelf Inserting a Cwdm Oadm or a Cwdm Omux Shelf with plug-in module in 19-inch rackCabling a Cwdm Oadm or a Cwdm Omux Cabling a Cwdm OadmCabling a Cwdm Oadm Cabling a four-channel Cwdm Omux Cabling a Cwdm OMUX-4Cabling an eight-channel Cwdm Omux Cabling an Cwdm OMUX-8 Removing a Cwdm Oadm or a Cwdm Omux Appendix a Cwdm Oadm specifications Cwdm Oadm specificationsAppendix a Cwdm Oadm specifications 212257-B Cwdm Omux specifications Cwdm Omux specificationsAppendix B Appendix B Cwdm Omux specifications 212257-B Appendix C Handling and cleaning fiber optic equipment PrecautionsCleaning Fiber Optic Connectors Appendix C Handling and cleaning fiber optic equipmentTools and Materials Cleaning Single SC and FC Connectors Cleaning Duplex SC Connectors Cleaning Receptacle or Duplex Devices Page Glossary Glossary Dwdm See optical fiber Group of circuits connected at one point on a network See MMF Ndsf An optical wavelength band for WDM optical communications Device that does not require a source of energy to function See SMF WDM Glossary 212257-B Index Cwdm OmuxIndex OMUX, CwdmIndex Index 212257-B