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Table Of Contents
Cisco Metro 1500 Series Optical Isolator Configuration Note
Obtaining Technical Assistance
Cisco Metro 1500 Series Optical Isolator Configuration Note
This configuration note describes the usage of the optical isolator (OI) that can be used with the
Cisco Metro 1500 series metropolitan area network (MAN) dense wavelength division multiplexing (DWDM) system.Contents
This configuration note contains the following information:
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Obtaining Technical Assistance
Note
Introduction
The Cisco Metro 1500 series optical isolator (OI) allows direct transmission from a wavelength channel module (WCM) over a remote (or trunk) fiber. The OI enables a WCM to bypass the multiplexing/demultiplexing (MUX/DMX) module in the Cisco Metro 1500 series chassis. By connecting the WCM to the OI through fiber jumpers, you can transmit directly over the remote fiber and obtain an additional 3 dB to 5 dB for use in your optical budget.
The OI minimizes optical back reflection. Optical back reflection is common in fiber-based transmissions. Back reflection is a small amount of light that is reflected back towards the transmitting optical component. The OI absorbs this reflected light so that the transmitting optical component operates with minimal interference.
Installation Notes
The OI is connected directly to a jumper that extends from the remote connection of the WCM. The OI sits between the WCM and the remote (or trunk) fiber. See Figure 1.
Figure 1 Optical Isolator Connection Scenario
To connect the OI, follow these guidelines:
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Specifications
Table 1 lists the specifications of the OI.
Related Documentation
The following documents are available for the Cisco Metro 1500 series:
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Customer order number DOC-7810590=•
Customer order number DOC-7810588=•
Customer order number DOC-7810595=•
Customer order number DOC-7810596=For further information, see the "Obtaining Documentation" section.
Obtaining Documentation
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or http://www-europe.cisco.com.
Documentation CD-ROM
Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly. Therefore, it is probably more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.
Ordering Documentation
Registered CCO users can order the Documentation CD-ROM and other Cisco Product documentation through our online Subscription Services at http://www.cisco.com/cgi-bin/subcat/kaojump.cgi.
Nonregistered CCO users can order documentation through a local account representative by calling Cisco's corporate headquarters (California, USA) at 408 526-4000 or, in North America, call 800 553-NETS (6387).
Obtaining Technical Assistance
Cisco provides Cisco Connection Online (CCO) as a starting point for all technical assistance. Warranty or maintenance contract customers can use the Technical Assistance Center. All customers can submit technical feedback on Cisco documentation using the web, e-mail, a self-addressed stamped response card included in many printed docs, or by sending mail to Cisco.
Cisco Connection Online
Cisco continues to revolutionize how business is done on the Internet. Cisco Connection Online is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
CCO's broad range of features and services helps customers and partners to streamline business processes and improve productivity. Through CCO, you will find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online support services, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.
Customers and partners can self-register on CCO to obtain additional personalized information and services. Registered users may order products, check on the status of an order and view benefits specific to their relationships with Cisco.
You can access CCO in the following ways:
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You can e-mail questions about using CCO to cco-team@cisco.com.
Technical Assistance Center
The Cisco Technical Assistance Center (TAC) is available to warranty or maintenance contract customers who need technical assistance with a Cisco product that is under warranty or covered by a maintenance contract.
To display the TAC web site that includes links to technical support information and software upgrades and for requesting TAC support, use www.cisco.com/techsupport.
To contact by e-mail, use one of the following:
In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
This document is to be used in conjunction with the documents listed in the "Related Documentation" section.
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