Cisco ONS 15501 User Guide

Release 2.0

October 2002

Corporate Headquarters

Cisco Systems, Inc. 170 West Tasman Drive

San Jose, CA 95134-1706

USA http://www.cisco.com Tel: 408 526-4000

800 553-NETS (6387) Fax: 408 526-4100

Customer Order Number: DOC-7814134=

Text Part Number: 78-14134-02

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL

STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT

WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.

THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT

SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE

OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.

The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.

The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not installed in accordance with Cisco???s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.

Modifying the equipment without Cisco???s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:

???Turn the television or radio antenna until the interference stops.

???Move the equipment to one side or the other of the television or radio.

???Move the equipment farther away from the television or radio.

???Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.

The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB???s public domain version of the UNIX operating system. All rights reserved. Copyright ?? 1981, Regents of the University of California.

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All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0403R)

Cisco ONS 15501 User Guide

Copyright ?? 2002, Cisco Systems, Inc.

All rights reserved.

Contents

Contents

ethmode 4-9 gain 4-10 gainmean 4-11 gaintrig 4-12

get-snmp-com 4-13 get-snmp-mgr 4-14 help 4-15

hide-trap 4-17 host-config 4-18 inpwr 4-19 inpwrmean 4-20 inpwrtrig 4-21 ip-config 4-22 logout 4-23 neighbor-in 4-24 neighbor-out 4-26 ntp 4-28

ntp-ip 4-29 optoutpwr 4-30 outsigpwr 4-31 outsigpwrmean 4-32 outsigpwrtrig 4-33 ping 4-34

ps1 4-35 ps2 4-36 reboot 4-37

resetmeantrig 4-38 restore 4-39 setgainmean 4-40 setgaintrig 4-41 setinpwrmean 4-42 setinpwrtrig 4-43 set-master-pwd 4-44 setoutsigpwrmean 4-45 setoutsigpwrtrig 4-46

Contents

Contents

Contents

Preface

This preface describes the audience, organization, and conventions for the Cisco ONS 15501 User Guide. It also provides information about how to obtain related documentation and technical assistance.

Audience

Only trained and qualified personnel should be allowed to install, maintain, or troubleshoot the Cisco ONS 15501. Such individuals must be familiar with general optical transmission technology to properly utilize the unit.

Organization

This guide includes the following chapters:

Preface

Conventions

Conventions

Notes use the following conventions:

Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the publication.

Cautions use the following conventions:

Caution Means caution should be taken. Cautions contain information that is important to follow so as not to cause harm to the equipment.

Warnings use the following conventions:

Warning This warning symbol means danger. You are in a situation that could cause bodily in- jury. Before you work on any equipment, be aware of the hazards involved with elec- trical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.

Varoitus T??m?? varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin ty??skentelet mink????n laitteiston parissa, ota selv???? s??hk??kytkent??ihin liittyvist?? vaaroista ja tavanomaisista onnettomuuksien ehk??isykeinoista. T??ss?? julkaisussa esiintyvien varoitusten k????nn??kset l??yd??t laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (m????r??ysten noudattaminen ja tietoa turvallisuudesta).

Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un ??quipement, soyez conscient des dangers pos??s par les circuits ??lectriques et familiarisez-vous avec les proc??dures couramment utilis??es pour ??viter les accidents. Pour prendre connaissance des traductions d???avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information

(Conformit?? aux r??glements et consignes de s??curit??) qui accompagne cet appareil.

Preface

Conventions

Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer K??rperverletzung f??hren k??nnte. Bevor Sie mit der Arbeit an irgendeinem Ger??t beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unf??llen bewu??t. ??bersetzungen der in dieser Ver??ffentlichung enthaltenen Warnhinweise finden Sie im Dokument

Regulatory Compliance and Safety Information (Informationen zu beh??rdlichen Vorschriften und Sicherheit), das zusammen mit diesem Ger??t geliefert wurde.

Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformit?? alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.

Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan f??re til personskade. F??r du utf??rer arbeid p?? utstyr, m?? du vare oppmerksom p?? de faremomentene som elektriske kretser inneb??rer, samt gj??re deg kjent med vanlig praksis n??r det gjelder ?? unng?? ulykker. Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

Aviso Este s??mbolo de aviso indica perigo. Encontra-se numa situa????o que lhe poder?? causar danos f??sicos. Antes de come??ar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos el??ctricos, e com quaisquer pr??ticas comuns que possam prevenir poss??veis acidentes. Para ver as tradu????es dos avisos que constam desta publica????o, consulte o documento Regulatory Compliance and Safety Information (Informa????o de Seguran??a e Disposi????es Reguladoras) que acompanha este dispositivo.

??Advertencia! Este s??mbolo de aviso significa peligro. Existe riesgo para su integridad f??sica. Antes de manipular cualquier equipo, considerar los riesgos que entra??a la corriente el??ctrica y familiarizarse con los procedimientos est??ndar de prevenci??n de accidentes. Para ver una traducci??n de las advertencias que aparecen en esta publicaci??n, consultar el documento titulado Regulatory Compliance and Safety Information (Informaci??n sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompa??a con este dispositivo.

Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utf??r arbete p?? n??gon utrustning m??ste du vara medveten om farorna med elkretsar och k??nna till vanligt f??rfarande f??r att f??rebygga skador. Se f??rklaringar av de varningar som f??rkommer i denna publikation i dokumentet

Regulatory Compliance and Safety Information (Efterr??ttelse av f??reskrifter och s??kerhetsinformation), vilket medf??ljer denna anordning.

Preface

Related Documentation

Related Documentation

Refer to the following documents for additional information about the Cisco ONS 15501:

???Regulatory Compliance and Safety Information for the Cisco ONS 15501

???Introduction to DWDM Technology

???Cisco ONS 15540 ESP Planning and Design Guide

???Cisco ONS 15540 ESP Configuration Guide and Command Reference

???Cisco ONS 15540 ESP Troubleshooting Guide

???Cisco ONS 15540 ESP MIB Quick Reference

???Glossary of Optical Networking Terms

Obtaining Documentation

Cisco provides several ways to obtain documentation, technical assistance, and other technical resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation on the World Wide Web at this URL:

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

International Cisco web sites can be accessed from this URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

Cisco documentation and additional literature are available in a Cisco Documentation CD-ROM package, which may have shipped with your product. The Documentation CD-ROM is updated monthly and may be more current than printed documentation. The CD-ROM package is available as a single unit or through an annual subscription.

Registered Cisco.com users can order the Documentation CD-ROM (product number

DOC-CONDOCCD=) through the online Subscription Store:

http://www.cisco.com/go/subscription

Ordering Documentation

You can find instructions for ordering documentation at this URL:

http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm

Preface

Obtaining Technical Assistance

You can order Cisco documentation in these ways:

???Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from the Networking Products MarketPlace:

http://www.cisco.com/en/US/partner/ordering/index.shtml

???Registered Cisco.com users can order the Documentation CD-ROM (Customer Order Number DOC-CONDOCCD=) through the online Subscription Store:

http://www.cisco.com/go/subscription

???Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters (California, U.S.A.) at 408 526-7208 or, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

You can submit comments electronically on Cisco.com. On the Cisco Documentation home page, click Feedback at the top of the page.

You can email your comments to bug-doc@cisco.com.

You can submit your comments by mail by using the response card behind the front cover of your document or by writing to the following address:

Cisco Systems

Attn: Customer Document Ordering

170 West Tasman Drive

San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com, which includes the Cisco Technical Assistance Center (TAC) Website, as a starting point for all technical assistance. Customers and partners can obtain online documentation, troubleshooting tips, and sample configurations from the Cisco TAC website. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC website, including TAC tools and utilities.

Cisco.com

Cisco.com offers a suite of interactive, networked services that let you access Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com provides a broad range of features and services to help you with these tasks:

???Streamline business processes and improve productivity

???Resolve technical issues with online support

???Download and test software packages

???Order Cisco learning materials and merchandise

???Register for online skill assessment, training, and certification programs

Preface

Obtaining Technical Assistance

To obtain customized information and service, you can self-register on Cisco.com at this URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two levels of support are available: the Cisco TAC website and the Cisco TAC Escalation Center. The avenue of support that you choose depends on the priority of the problem and the conditions stated in service contracts, when applicable.

We categorize Cisco TAC inquiries according to urgency:

???Priority level 4 (P4)???You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

???Priority level 3 (P3)???Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

???Priority level 2 (P2)???Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

???Priority level 1 (P1)???Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

Cisco TAC Website

You can use the Cisco TAC website to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC website, go to this URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco service contract have complete access to the technical support resources on the Cisco TAC website. Some services on the Cisco TAC website require a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to this URL to register:

http://tools.cisco.com/RPF/register/register.do

If you are a Cisco.com registered user, and you cannot resolve your technical issues by using the Cisco TAC website, you can open a case online at this URL:

http://www.cisco.com/en/US/support/index.html

If you have Internet access, we recommend that you open P3 and P4 cases through the Cisco TAC website so that you can describe the situation in your own words and attach any necessary files.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues. These classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer automatically opens a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to this URL:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

Preface

Obtaining Additional Publications and Information

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled: for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). When you call the center, please have available your service agreement number and your product serial number.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

???The Cisco Product Catalog describes the networking products offered by Cisco Systems as well as ordering and customer support services. Access the Cisco Product Catalog at this URL:

http://www.cisco.com/en/US/products/products_catalog_links_launch.html

???Cisco Press publishes a wide range of networking publications. Cisco suggests these titles for new and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. For current Cisco Press titles and other information, go to Cisco Press online at this URL:

http://www.ciscopress.com

???Packet magazine is the Cisco monthly periodical that provides industry professionals with the latest information about the field of networking. You can access Packet magazine at this URL:

http://www.cisco.com/en/US/about/ac123/ac114/about_cisco_packet_magazine.html

???iQ Magazine is the Cisco monthly periodical that provides business leaders and decision makers with the latest information about the networking industry. You can access iQ Magazine at this URL:

http://business.cisco.com/prod/tree.taf%3fasset_id=44699&public_view=true&kbns=1.html

???Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in the design, development, and operation of public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html

???Training???Cisco offers world-class networking training, with current offerings in network training listed at this URL:

http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html

Preface

Obtaining Additional Publications and Information

C H A P T E R 1

Product Overview

The Cisco ONS 15501 is a low-noise, gain-flattened C-band optical EDFA (erbium-doped fiber amplifier). This guide describes how to install and operate the Cisco ONS 15501.

The Cisco ONS 15501 complements high-performance digital transmitters in topologies requiring amplification of 1550-nm optical signals.

This chapter includes the following sections:

???Product Description, page 1-1

???Optical Specifications, page 1-2

???Key Features, page 1-3

???Cisco ONS 15501 Applications, page 1-5

???Cisco ONS 15501 Front Panel, page 1-7

Product Description

The Cisco ONS 15501 contains an erbium-doped optical fiber, optical couplers, and one or more pump lasers and isolators. An optical signal (within a range of 1530 to 1563 nm) arrives at the input connector. The 1550- nm signal travels through a length of erbium-doped fiber cable. Inside the amplifier, light from a laser at a wavelength of 980 nm (called the pump laser) is used to amplify the signal at 1550 nm. The amplified signal is coupled to the output cable for transmission to a node. In longer cable runs, up to six Cisco ONS 15501 EDFAs can be connected in tandem.

The Cisco ONS 15501 uses 980-nm pump lasers that are built to meet Bellcore TR-NWT-000468 and MIL-883D standards. With a noise figure approaching the theoretical minimum, the amplifier achieves results superior to that obtained from a 1480-nm pump laser. The 980-nm pump laser has a long lifetime, exceeding one million hours. Use of a small number of high-quality components makes the

Cisco ONS 15501 a highly reliable product.

The Cisco ONS 15501 is polarization, modulation, and frequency independent, and operates in gain-controlled mode. It is optimized for different input and output powers, and can be used as a preamplifier, inline amplifier, or booster. The unit provides excellent gain flatness for the cascading of amplifiers in DWDM applications.

The Cisco ONS 15501 is physically designed to fit into a 19-inch, 23-inch, or ETSI equipment rack, with front, middle, or rear mounting capability. It is equipped with connectors for optional monitoring either locally or remotely.

Chapter 1 Product Overview

Optical Specifications

Optical Specifications

Table 1-1 lists the Cisco ONS 15501 optical specifications and Table 1-2 lists the Alarms thresholds. For other technical specifications, see Appendix B, ???Technical Specifications.???

Table 1-1 Cisco ONS 15501 Optical Specifications

1. Gain flatness is <1.5 dB for 17-13 dB; <2.0 dB for 7-13 dB.

Table 1-2 Alarm Thresholds

1. Gain Mean is the only settable parameter that effects system performance.

Chapter 1 Product Overview

Key Features

Some attributes (optical input, optical output, temperature and gain) allow alarm trigger points to be set on them. The alarms are triggered, or asserted when the measured value crosses the value of Mean ?? Trigger. Once triggered the alarm is cleared only when the measured value is at Mean ?? 90% of Trigger. This approach builds a hysteresis window of 10% of trigger value. If chattering is noted for one of the alarms, increase the trigger value (so that the hysteresis is bigger) to kill the alarm chatter.

Key Features

The Cisco ONS 15501 has the following key features:

???Constant flat gain of 17dB over the 1530 to 1563 nm band

???Optimized automatic gain control for the MAN

???Variable gain for flexibility in network design

???Typical transient suppression within 50 microseconds

???Low noise figure of < 6.0 dB

???Input power range of -29 to 0 dBm

???Network management

Constant Gain Flatness

The Cisco ONS 15501 is a constant gain amplifier. It does not deliver a constant output, but rather ensures that the output energy spectrum is gain-flattened irrespective of input power (up to the maximum allowed). If a channel is removed, the output level will drop at the wavelength that is removed, but the remaining energy spectrum will remain nearly flat over its wavelength band. The gain flatness is also only minimally affected if the input signal is not flat by several decibels.

Optimized Automatic Gain Control

The Cisco ONS 15501 has a wide input power range of 0 to -29 dBm, over which it maintains gain flatness as well as a low noise figure across the entire C band. The Cisco ONS 15501 maintains a high level of precision, as well as speed, which allows it to be used as a booster, inline or preamplifier, thus reducing sparing expenses. The constant gain and noise figure capabilities of the Cisco ONS 15501 make network designs simpler and more predictable.

The lower gain available in the Cisco ONS 15501, combined with its ability to handle input signal powers of up to 0 dBm, also enables the network designer to achieve much higher OSNR (optical signal-to-noise ratio) after cascading several EDFAs. In addition, it allows the network to expand beyond 32 wavelengths to a maximum of 128 wavelengths if necessary. The OSNR improvements of 6 dB is equivalent to a four-fold increase in the number of EDFAs that can be cascaded. Alternatively, the unit can accommodate signals with four times the data rate (for instance, OC-192 as opposed to OC-48). Thus, the limitations of higher gain EDFAs that have input powers limited to -6 dBm can be easily overcome by using the Cisco ONS 15501. Some representative figures are included in Table 1-3, assuming a flat input to the first Cisco ONS 15501.

Chapter 1 Product Overview

Key Features

.

Table 1-3 Relative OSNR in Cascading EDFAs

1.0 dBm total input power.

2.-6 dBm total; -21 dBm per channel.

Variable Gain

When the gain of an EDFA is fixed, the assumption is that all networks can be laid out with equally spaced EDFAs. In reality, this is rarely the case. For designs in which the spacing must be flexible, variable gain allows the network designer to tailor network requirements much more accurately. For instance, when an Cisco ONS 15501 is used as a preamplifier for receivers having an overload point of -8 dBm per wavelength, the output VOA (variable optical attenuator) can prevent overload by reducing the signal going to the receiver. Alternately, when EDFA spacing is only 10 dB, the output VOA can be enabled to avoid saturation of the next stage EDFA, ensuring that the entire network has good gain flatness and virtually consistent OSNR across all wavelengths.

The variable gain capabilities of the Cisco ONS 15501 greatly enhance the flexibility of an optical network. System operators can add or drop optical elements, such as OADM (optical add/drop multiplexer), without drastic network redesigns or costly equipment changes. When a change occurs in span loss, the adjustable gain can be used to reset the network to a better operating point.

Transient Suppression

Transients in the performance of EDFAs are inevitable whenever the number of signals or the relative power of signals change. For example, when channel rerouting or system failure (caused by a fiber cut or equipment malfunction) transfers all incoming power to a single ???surviving channel,??? that channel will momentarily experience a higher gain, which can cause BER (bit error rate) problems due to eye-pattern closure. The amount of time required by an amplifier to recover from such a change indicates its suitability for add/drop applications.

The most important parameters in transient suppression are the recovery time and the overshoot and undershoot amplitude. The recovery time for the signal amplitude to get within 10% of the ???steady state??? amplitude after the switching event is referred to as the transient suppression time. Smaller values are desirable. From a 10 dB change in power (simulating the adding or dropping of 29 out of 32 channels present), the Cisco ONS 15501 never exceeds 100 microseconds and is typically below 50 microseconds. The Cisco ONS 15501 can respond to the most drastic power changes with overshoots or undershoots of less than 1 dB.

Chapter 1 Product Overview

Cisco ONS 15501 Applications

Low Noise Figure

The low noise characteristics of the Cisco ONS 15501 allow over six amplifiers to be cascaded and still achieve an excellent OSNR at input powers as low as ???21 dBm per channel. This enables seamless migration to higher speeds beyond OC-48 and to a larger number of channels.

High Maximum Output Power

The high maximum optical power of the Cisco ONS 15501 increases the number of wavelengths that can potentially be routed to it. The higher input power range available can be used to increase the number of wavelengths to 128 from 32, without having any spectral gain tilt effects.

Network Management

The Cisco ONS 15501 supports SNMP, and it has a console port to facilitate setup and monitoring. With a customer-supplied network monitor and the provided MIB file, all monitorable and settable parameters are available remotely.

Cisco ONS 15501 Applications

The Cisco ONS 15501 supports the following applications:

???Point-to-point topologies

???Ring topologies

???Adding or dropping wavelengths

???Adjusting to span loss changes

Point-to-Point Topologies

In a metropolitan point-to-point DWDM network, the Cisco ONS 15501 can function as a pre-, post-, and/or inline amplifier. Most metropolitan point-to-point DWDM networks require post-amplifiers, but if a given span length exceeds the unit gain (>17 dB), a preamplifier may also be required to handle the optical link loss budget. When the span length greatly exceeds 17 dB, an inline amplifier might also be required.

Because of the wide input power range (-29 to 0 dBm) of the Cisco ONS 15501, trunk attenuation is typically also necessary, especially when the unit is used as a post-amplifier. For instance, when the per channel output power from the node is -5 dBm in a 32-channel system, the total output power from the node is +10 dBm. Thus, at least 10 dB of trunk attenuation is required directly preceding the amplifier.

The Cisco ONS 15501 can also be tuned to meet post- or inline amplification input power requirements.

Assuming that the typical per channel power levels in a point-to-point network are identical at the source node, and that there are fewer than four amplifiers between source and destination nodes, it is not necessary to maintain per channel power equalization to satisfy each amplifier???s total input power requirement and maintain acceptable OSNR for each channel.

Chapter 1 Product Overview

Cisco ONS 15501 Applications

Ring Topologies

An amplified ring topology requires more fine-tuning of power for each channel or band. Figure 1-1 illustrates a hubbed ring network utilizing counter-clockwise signal transmission. All bands (A, B, C and D) are transmitted from node 1. Node 2 terminates and transmits bands A and B; node 3 terminates and transmits band C; and node 4 terminates and transmits band D.

Figure 1-1 Power Equalization in an Amplified Ring Network

In general, EDFAs in a ring topology should be placed so they maintain the power level at the receiver, as well as the OSNR, of each channel. In this case, EDFAs serving as postamplifiers are located at nodes 2 and 4.

At node 2, the input power level of the EDFA is much higher than the input power level of the pass-through band (bands C and D), due to the added power from bands A and B. If trunk attenuation is employed directly before the EDFA at node 2 to keep the unit???s total input power within the required range, the power levels of both the add bands (bands A and B) and the pass-through bands (bands C and D) are attenuated equally. As a result, the power level of the pass-through bands is much lower than that

Chapter 1 Product Overview

Cisco ONS 15501 Front Panel

Table 1-4 Cisco ONS 15501 Front Panel Features

Chapter 1 Product Overview

Cisco ONS 15501 Front Panel

Cisco ONS 15501 LED Alarm Definitions

The Cisco ONS 15501 front panel has three LEDs:

???The green POWER LED turns on or off to reflect the following conditions:

???On: Both power supply voltages are within tolerance (the Cisco ONS 15501 is powered normally).

???Off: Both power supply voltages outside of tolerance or unit not powered up.

???Blinking: One of the power supply voltages outside of tolerance.

???The red FAIL LED turns on or off to reflect the following conditions:

???On: The pump laser bias, pump laser temperature, or power supply is out of tolerance. This LED indicates a major internal failure, such as an overtemperature condition or a failure in the pump laser or power supply.

???Off: The pump laser bias, pump laser temperature, and power supply are in the specified range.

???The yellow LOS LED turns on or off to reflect the following conditions:

???On: Input signal level is below the loss-of-input threshold.

???Off: Input signal level is above the minimum input power threshold.

Chapter 1 Product Overview

Cisco ONS 15501 Front Panel

C H A P T E R 2

Installing the Cisco ONS 15501

This chapter describes the installation procedures for the Cisco ONS 15501 chassis and its components. This chapter includes the following sections:

???Creating a Site Log, page 2-1

???Required Tools and Parts, page 2-2

???Installation Checklist, page 2-2

???Rack-Mounting the Chassis, page 2-3

???Optical Connection, page 2-3

???DC Power Connection, page 2-4

???Communication Connections, page 2-6

???Installation Commands, page 2-7

Before beginning any of the procedures in this document:

???Review the Regulatory Compliance and Safety Information for the Cisco ONS 15501 document to avoid injury to yourself or damage to the equipment.

???Ensure that your equipment configuration meets the minimum requirements for the installation you will perform, and that you have all the parts and tools you need.

Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Creating a Site Log

We recommend keeping a site log (or a section of a larger site log) to record all actions related to the Cisco ONS 15501. The log should be kept near the chassis where anyone who works on the equipment can access it. Site log entries might include the following:

???Background information.

???Installation progress.

Make a copy of the ???Installation Checklist??? section on page 2-2 and insert it into the site log. Make entries on the checklist as you complete each procedure.

???Maintenance procedures.

Chapter 2 Installing the Cisco ONS 15501

Required Tools and Parts

Use the site log as a record of ongoing system maintenance. Each time a procedure is performed on the Cisco ONS 15501, update the site log to reflect situations such as maintenance schedules and requirements, intermittent problems, changes and updates, configuration changes, and related comments and notes.

Required Tools and Parts

You need the following tools and parts to install the Cisco ONS 15501:

???Phillips screwdriver

???Wire cutters, as needed (for DC power wiring)

???Wire strippers, as needed (for DC power wiring)

???Crimp tool (for grounding wire)

???Digital voltmeter (with ohmmeter function)

???Grounding wire (8 AWG)

???Power supply connection wire (18 AWG)

???Listed two-hole copper grounding lug (0.25 in. [0.635 cm] diameter bolt hole size, 0.625 in. [1.5875 cm] center-to-center hole spacing)

Installation Checklist

The installation checklist includes the procedures for initial hardware installation of the

Cisco ONS 15501. Mark the entries as you complete each procedure. Make a copy of this checklist, as needed, for the site log.

Installation checklist for site:

Product name:

Chapter 2 Installing the Cisco ONS 15501

DC Power Connection

Warning When installing or replacing the unit, the ground connection must always be made first and disconnected last.

Grounding the Chassis

To connect the provided grounding lug to the tapped frame grounding holes and connect the customer-supplied grounding wire to the DC power terminal connectors, follow these steps:

Step 1 Verify that the primary and user-optional redundant external DC power circuits are disconnected at the source.

Step 2 Remove the cover from the DC power terminal connectors. Identify the two tapped frame grounding holes at the upper right side of the Cisco ONS 15501 front panel. (See Figure 2-3.)

Step 3 Remove the two screws provided for securing the ground lug to the Cisco ONS 15501.

Step 4 Connect the 8 AWG grounding wire to the grounding lug. The other end of the wire should be suitably grounded.

Step 5 Install the grounding lug on the Cisco ONS 15501, using the two provided screws and washers.

Step 6 Test for proper frame ground using the ohmmeter section of a digital voltmeter. Place one prod on the Cisco ONS 15501 and the other on the frame grounding bus to which the grounding lug and grounding wire is connected. Observe for a zero-resistance ground.

Note There is an alternate grounding point on the chassis, located on the left side of the rear panel.

Connecting the Power

To connect the power wiring to the DC power terminal connectors, follow these steps:

Step 1 Cut and strip the customer-supplied 8 AWG primary and redundant power supply wires, if necessary. Identify the -48 VDC wire and power return wire for the primary and redundant circuit.

Step 2 Install the primary DC power wiring to the right-hand barrier strip. (See Figure 2-3.) The left-hand screw is the -48 V connection. The right-hand screw, marked ???RET,??? is the ground connection.

Step 3 Install the redundant DC power wiring to the left-hand barrier strip. (See Figure 2-3.) The left-hand screw is the -48 V connection. The right-hand screw, marked ???RET,??? is the ground connection.

Step 4 Replace the power connector cover.

Step 5 Apply power to the primary and redundant DC circuits.

Chapter 2 Installing the Cisco ONS 15501

Communication Connections

Figure 2-3 Connecting the Cisco ONS 15501 to a DC Power Source

2

1 3

68380

Redundant DC power

2 Tapped frame grounding holes

Communication Connections

The Cisco ONS 15501 communicates in three ways:

???SNMP (through Ethernet)

???alarm contacts (through RJ-45 connector)

???console port (through RS-232)

See Appendix C, ???Connector Pinouts???for the wiring layouts of the RJ-45 and RS-232 connectors.

See the ???Configuring Local Serial Communication??? section on page 3-1 for detailed information about the RS-232 console port.

Chapter 2 Installing the Cisco ONS 15501

Installation Commands

Setting Up Alarm Contacts

To set up alarm contacts, follow these steps:

Step 1 Obtain an 8-conductor, 8 AWG solid-wire cable and terminate one end with an RJ-45 connector.

Step 2 Connect the stub end of the alarm cable to the alarm system contacts, either to miscellaneous discrete inputs on terminal equipment or to a central office alarm panel.

Step 3 Connect the RJ-45 connector to the Cisco ONS 15501.

See the???Alarm Contact Closures??? section on page 3-4 and the ???Cisco ONS 15501 LED Alarm

Definitions??? section on page 1-9.

Installation Commands

You can connect to a Cisco ONS 15501 locally using a serial connection or remotely through SNMP. See the ???Configuring Local Serial Communication??? section on page 3-1 for instructions on setting up either of these options. After you establish a connection, use the following commands to complete the hardware installation. See Chapter 4, ???Command Reference,??? for a complete list of available commands.

Introductory Commands

You can use the following commands to establish communication with the Cisco ONS 15501 and to access additional information about the amplifier.

???help ??? Displays a list of all available commands

???sys-info ??? Displays the basic information on the system, including CLEI (Common Language Equipment Identifier) code, model number, serial number, MAC address, firmware version, and firmware build date

Review and Operational Commands

You can use the following commands to review the overall status of the Cisco ONS 15501.

???alarm ??? Displays a list of alarms in the system

???status ??? Displays the measured, alarm mean, and alarm trigger values for input power, internal case temperature, optical gain, and output signal power, as well as the measured values for optical output power

Chapter 2 Installing the Cisco ONS 15501

Installation Commands

C H A P T E R 3

Configuring the Cisco ONS 15501

The Cisco ONS 15501 supports monitoring using CLI commands from the console port. It also supports remote monitoring using SNMP or Telnet (using TCP/IP over the Ethernet).

This chapter describes how to set up communications with a Cisco ONS 15501 and includes the following sections:

???Configuring Local Serial Communication, page 3-1

???Monitoring Alarms and Traps, page 3-2

???Upgrading the Flash Image, page 3-3

???Configuring Remote Communication, page 3-3

???Alarm Contact Closures, page 3-4

Configuring Local Serial Communication

To establish a serial communication link with a Cisco ONS 15501, the unit must first be properly installed and powered up. Table 3-1 lists the equipment required for setup.

Table 3-1 Equipment for Local Serial Communication Setup

Setting Up the Software

To set up the software on the Cisco ONS 15501 for local serial communication, follow these steps:

Step 1 Launch the serial port communication utility on the PC or laptop and configure it to communicate at 9600 baud, no parity, 8 bit data, 1 stop bit, and no flow control.

Step 2 Connect the DB-9 end of the RS-232 data cable to the COM port on the PC or laptop.

Chapter 3 Configuring the Cisco ONS 15501

Monitoring Alarms and Traps

Step 3 Connect the other end of the RS-232 data cable to the RS-232 serial port on the Cisco ONS 15501 front panel. (See Figure 1-2 on page 1-7.)

Step 4 Press Enter to get the login prompt.

The Cisco ONS 15501 is now ready for basic system configuration.

Configuring a Basic System

To configure a basic system, follow these steps:

Step 1 Log in to the system using the default master password edfa1.

Step 2 Enter host-config hostname to set the host name. The maximum allowed length for hostname is 15 characters.

Step 3 Enter ip-config ip-addr ip-subnet-mask def-gateway-ip to set the IP address, subnet mask, and gateway address. In the absence of any arguments for subnetmask and gateway address, default values are inserted.

Step 4 Enter ntp status to enable the NTP, if appropriate, and enter ntp-ip ip-addr1 ip-addr2 to set the IP address of the NTP server.

Step 5 Enter set-time time to set the time of the system if no NTP server is available. The time needs to be in the same format as this example, where PST is the time zone.

Fri Aug 24 10:50:31 2001 PST.

Note See Appendix D, ???Time Zone Codes,??? for a list of time zones and correlating abbreviations.

Step 6 Enter set-user-pwd to set the user login password. The CLI then prompts the user for the default master password and the new user password. The default user password is edfa.

Step 7 Enter set-master-pwd to set a new master password if you logged in using the master password. The CLI prompts the user for the default master password and the new master password. The default master password is edfa1.

Monitoring Alarms and Traps

To configure the software on the Cisco ONS 15501 for console port-based monitoring, follow these steps:

Step 1 Enter show-trap to display the traps of the system.

Step 2 Enter alarm to display the alarms in the system.

Step 3 Enter status to check the optical and environmental status of the system.

Chapter 3 Configuring the Cisco ONS 15501

Upgrading the Flash Image

Upgrading the Flash Image

To perform a field upgrade of a Flash image, follow these steps:

Step 1 Ensure that the IP addresses and the FTP servers, user accounts, path names, and filenames of the Flash image are correctly set up.

Step 2 Enter show-trap to verify that the trap display is turned on.

Step 3 Enter sw-download ftp server-IP username password path filename flashbank or sw-download tftp server-IP filename flashbank to FTP (TFTP) the image from the FTP (TFTP) server and burn it to the specified Flash bank. Make sure that the FTP (TFTP) server is accessible using the same username, password, path name, and filename.

Note Two traps are generated to indicate the beginning and ending of the FTP burn process. The image cannot be downloaded to a currently active bank.

Step 4 Once the sw-download ftp process is complete, enter boot-bank flashbank to set the boot bank from which the system next boots up.

Step 5 Enter reboot to reboot the system.

Configuring Remote Communication

To establish a remote communication link with a Cisco ONS 15501 through Telnet or SNMP, the unit must first be properly installed and powered up.

Configuring for Telnet

When the Cisco ONS 15501's Ethernet port is connected to other Ethernet switches for network management purposes, it is recommended that either end of the Ethernet port NOT be configured in auto-negotiation mode, and that both ends of the Ethernet connection be configured in either 10 Mbps or 100 Mbps, half or full duplex mode.

Note The 15501 default Ethernet boot mode is half-duplex 10 Mbps.

For additional information, please refer to the ethmode command.

To configure the Cisco ONS 15501 for Telnet, follow these steps:

Step 1 Connect the Cisco ONS 15501 to an Ethernet LAN using a standard RJ-45 cable.

Step 2 Make sure that the system network is properly set up using ping to the IP address of the system.

Step 3 Enter telnet target-ip-address to log in remotely to the Cisco ONS 15501.

Chapter 3 Configuring the Cisco ONS 15501

Alarm Contact Closures

Note All commands supported by the Cisco ONS 15501 through the console port are also supported in a Telnet session.

Configuring for SNMP

When the Cisco ONS 15501's Ethernet port is connected to other Ethernet switches for network management purposes, it is recommended that either end of the Ethernet port NOT be configured in auto-negotiation mode, and that both ends of the Ethernet connection be configured in either 10 Mbps or 100 Mbps half or full duplex mode.

Note The 15501 default Ethernet boot mode is half-duplex 10 Mbps.

For additional information, please refer to the ethmode command.

To configure the Cisco ONS 15501 for SNMP, follow these steps:

Step 1 Connect the Cisco ONS 15501 to an Ethernet LAN using a standard RJ-45 cable.

Step 2 Enter add-snmp-mgr manager-ip to set the SNMP manager IP addresses. The maximum number of SNMP manager IP addresses is 16.

Step 3 Enter get-snmp-mgr to display the list of SNMP managers.

Step 4 Enter del-snmp-mgr manager-ip to delete an SNMP manager entry.

Step 5 Enter add-snmp-com community-string [ro | rw] to set the SNMP community string for remote monitoring. The maximum number of SNMP community strings is 16.

Step 6 Enter get-snmp-com to display the list of SNMP community strings.

Step 7 Enter del-snmp-com community-string to delete an SNMP community strings entry.

Alarm Contact Closures

The Cisco ONS 15501 provides a front panel, single form C, discrete external alarm output. (See the ???Cisco ONS 15501 Front Panel??? section on page 1-7 for additional information.) The external alarm output is through the eight wires of an RJ-45 connector.

The following events are reported by the discrete external alarms through individual alarm contacts:

???Alarm 1???Loss of input signal or input signal power below threshold

???Alarm 2???Failure in the pump laser or pump laser temperature

???Alarm 3???Loss of input power supply or power supply out of range

???Alarm 4???Undefined (always on; may be used for power indication)

Note The default state of the alarm contacts is Normally Closed. Depending on which fault condition occurs, specific alarm contacts open. The corresponding Cisco ONS 15501 LEDs turn on/off. (See the ???Cisco ONS 15501 LED Alarm Definitions??? section on page 1-9 for additional information.)

Chapter 3 Configuring the Cisco ONS 15501

Alarm Contact Closures

Table 3-2 lists the RJ-45 pinouts for the alarms.

Table 3-2 Alarm Pinouts

Chapter 3 Configuring the Cisco ONS 15501

Alarm Contact Closures

Chapter 4 Command Reference

add-snmp-com

add-snmp-com

To add an SNMP community string to the system, use the add-snmp-com command.

add-snmp-com community-string [ro|rw]

Chapter 4 Command Reference

The following example shows how to modify the Ethernet boot mode.

edfa > ethmode 3

ethernet init-mode updated to 3

Chapter 4 Command Reference

get-snmp-com

get-snmp-com

To display the SNMP community strings in the system, use the get-snmp-com command.

Chapter 4 Command Reference

help

The following example shows how to access a list of available master password commands.

edfa > help

STATUS:Alarm, Gain, GainMean, GainTrig, InPwr, InPwrMean, InPwrTrig, LaserPumpStat, OptOutPwr, OutSigPwr, OutSigPwrMean, OutSigPwrTrig, Ps1, Ps2, Status, Temp, TempMean, TempTrig

SETUP:ResetMeanTrig, SetGainMean, SetGainTrig, SetInPwrMean,

SetInPwrTrig, SetOutSigPwrMean, SetOutSigPwrTrig, SetTempMean,

SetTempTrig

SYSTEM:add-snmp-com, add-snmp-mgr, copyright, del-snmp-com, del-snmp-mgr, ethmode, get-snmp-com, get-snmp-mgr, help, host-config, ip-config, logout, neighbor-in, neighbor-out, ntp, ntp-ip, ping, set-master-pwd, set-time, set-user-pwd, sys-info, time, timeout, timezone

MAINTENANCE:boot-bank, hide-trap, reboot, show-trap, sw-download

Chapter 4 Command Reference

ip-config

ip-config

To display or modify the IP address, IP subnet mask and IP default gateway, use the ip-config command.

ip-config [ip-addr [ip-subnet-mask [def-gateway-ip]]]

The following example shows how to display or modify the IP address, IP subnet mask and IP default gateway.

edfa > ip-config 192.168.0.10 255.255.255.240 192.168.0.1

Chapter 4 Command Reference

neighbor-in

neighbor-in

To display or modify the neighboring equipment details for optical input, use the neighbor-in command.

neighbor-in [[host link-host] [ip link-ip] [port link-port]] | [disable]

Chapter 4 Command Reference

neighbor-in

Examples:The following example shows how to configure the input neighbor equipment information.

edfa > neighbor-in host box1 ip 192.168.0.4 port box1-port edfa > neighbor-in host box1

edfa > neighbor-in ip 192.168.0.4

edfa > neighbor-in host box1 port box1-port edfa > neighbor-in host box1 ip 192.168.0.4

edfa > neighbor-in ip 192.168.0.4 port box1-port edfa > neighbor-in disable

edfa > neighbor-in

HOST: source1

PORT: out-2

IP ADDRESS: 10.1.5.41

The following example shows how to issue the neighbor-in command with all the parameters.

edfa > neighbor-in source1 ip 10.1.5.41 port out-2 edfa > neighbor-in

Chapter 4 Command Reference

neighbor-out

neighbor-out

To display or modify the neighboring equipment details for optical output, use the neighbor-out command.

neighbor-out [[host link-host] [ip link-ip] [port link-port]] | [disable]

Chapter 4 Command Reference

neighbor-out

Chapter 4 Command Reference

ntp-ip

ntp-ip

To modify or display the IP addresses of the NTP (Network Time Protocol) server, use the ntp-ip command.

ntp-ip [ip-addr1 [ip-addr2]]

The following example shows how to display the current IP addresses of the primary and secondary NTP servers.

edfa > ntp-ip

209.128.68.149, 209.128.68.147

Chapter 4 Command Reference

reboot

reboot

To reboot the software on the Cisco ONS 15501, use the reboot command.

reboot

Syntax Description This command has no other arguments or keywords.

Command Types Does not change configuration

Command Modes Master password protected

Chapter 4 Command Reference

resetmeantrig

resetmeantrig

Chapter 4 Command Reference

set-master-pwd

set-master-pwd

Chapter 4 Command Reference

set-time

edfa > time

Time zone is set to PST

Thu Jan 01 00:00:00 1970 PST

The following example shows how to modify the time of the system.

edfa > set-time fri feb 8 1:2:30 2002 pst

Time zone is set to PST

Fri Feb 08 01:02:30 2002 PST

Chapter 4 Command Reference

set-user-pwd

set-user-pwd

Chapter 4 Command Reference

sw-download

C H A P T E R 5

Troubleshooting

This chapter discusses basic fault investigation and diagnostic (troubleshooting) procedures for the Cisco ONS 15501.

This chapter includes the following sections:

???Basic Diagnostic Procedures, page 5-1

???Isolating the Problem, page 5-2

???Password Recovery, page 5-3

???Technical Support, page 5-4

Basic Diagnostic Procedures

When a problem occurs over the network, use the following three basic diagnostic procedures to determine if the Cisco ONS 15501 is the source of the problem:

???Verify the power connection.

???Verify the Ethernet connection.

???Verify the alarm connection.

To verify the power connection, follow these steps:

Step 1 Make sure that power is securely connected to the unit and that external DC power is being applied.

Step 2 Check for LED lamp activity on the front panel. Disregard the color or number of LEDs illuminated at this time. Verify only that one or more is on, indicating that the chassis is receiving power.

Step 3 Check the following areas for possible problems if no LEDs are on:

???Verify that the power connection to the chassis is firmly made.

???Verify that the circuit power switch(es) are in the on position.

???Verify that the external source DC power circuit breaker(s) are on.

???Verify that the external power wires are delivering power correctly.

Chapter 5 Troubleshooting

Isolating the Problem

To verify the Ethernet connection, follow these steps:

Step 1 Make sure that the RJ-45 connector is in good working condition; then plug it into the LAN port.

Step 2 Check for LED activity on the LAN port. The left LED is green when an Ethernet connection is established. The right LED flickers yellow when a signal is being transmitted to the Ethernet.

Step 3 Check the following areas for possible problems if no LEDs are on:

???Verify that the RJ-45 connection to the chassis is firmly made.

???Verify that the RJ-45 connector is in good working condition.

???Verify that the external Ethernet source is on and delivering a signal.

To verify the alarm connection, connect an ohmmeter to the Alarm Out port, through an RJ-45 connector.

If the ohmmeter shows a reading of any kind, a connection is present. A very high resistance reading indicates that there are no alarm conditions; a low resistance reading indicates that alarm conditions do exist. See Appendix C, ???Connector Pinouts.???

Isolating the Problem

The key to troubleshooting the Cisco ONS 15501 is to isolate the problem to a specific component.

When troubleshooting, consider the following components of the Cisco ONS 15501:

???Power supply ??? Includes the power input wiring and associated switches and fuses.

???Cooling system ??? Includes the fan, which should go on when power is supplied. The air intake vents and exhaust vents must have adequate ventilation.

???Front panel indicators ??? Includes the LEDs on the front panel, which help to identify a failure.

???Connecting cables ??? Includes all of the interface cables that connect the equipment to any transmission circuit or external device.

Reading the Front Panel LEDs

The front panel LEDs provide the activity or alarm status of the interfaces or internal circuitry to which they correspond. If an LED is connected to an active circuit and registers an alarm condition or is not on, a problem may exist. Table 5-1 lists the front panel LEDs and what the conditions indicate.

Table 5-1 shows the Cisco ONS 15501 front panel.

Table 5-1 Cisco ONS 15501 Front Panel LEDs

1. Loss of Signal

Chapter 5 Troubleshooting

Password Recovery

If all LEDs on the front panel are off:

???Check that primary and user-optional external power is available and that the DC power wiring is properly and firmly connected to the appropriate screw terminals.

???Check that the external DC supply power switch is turned to the on position.

If the Power LED blinks green, one of the two power supplies has failed or is not installed.

If the Power LED is green but the unit has failed and no other LEDs are on, then the internal power regulating circuit may have failed. Contact the Cisco Technical Assistance Center (TAC) immediately for assistance.

If the Fail LED is red, then a major trouble condition exists in the Cisco ONS 15501 hardware. Contact the Cisco Technical Assistance Center (TAC) immediately for assistance.

Warning Infra-red laser energy may be present on the cable connected to the receiving (Input) connector, at the transmitting (Output) optical fiber connector, or the monitoring (Optical Monitor) connector. To avoid potential damage to the eyes, do not look directly into this connector or cable. When an optical cable is not attached, place the supplied protective cap over the connector and the optical fiber cable.

If the LOS (loss of signal) LED is yellow, then the input optical signal has disappeared or has fallen below the detection level.

???Check to see that the input optical cable is securely seated in its connector.

???Connect an optical power meter on an optical spectrum analyzer to the Output Monitor optical connector and check for proper level of the outgoing signal.

???Check with the distant transmitting end to determine if the signal is leaving that site at the proper level.

???Check that the input power mean and trigger values are configured correctly for the actual desired input signal.

Password Recovery

If you have forgotten your passwords, you must power cycle the system and use the restore command to reset the passwords to the defaults. The restore command can only be entered from a session on the serial port, not from a Telnet session.

Caution Be sure not to lose the passwords. Powercycling the system disrupts data flow.

To recover the system passwords, follow these steps

Step 1 Power cycle the system.

Step 2 From a HyperTerminal session on the console port, press the Enter key within 15 seconds after the password prompt appears.

Step 3 At the ???edfa >??? prompt, type the restore command and press the Enter key.

Step 4 Answer yes to command prompts and press the Enter key.

Chapter 5 Troubleshooting

Technical Support

The default user password is edfa and the default master password is edfa1. For security reasons, you should change both passwords as soon as possible. Log in with master privileges and use the set-user-pwd and set-master-pwd commands to change the passwords.

Technical Support

If the problem exists after you review the Cisco ONS 15501 status and attempt to reprovision the amplifier, contact the Cisco Technical Assistance Center (TAC). (See the Preface for contact information.)

A P P E N D I X A

Cisco ONS 15501 Alarms

Following alarms are defined for Cisco ONS 15501:

??? Ambient Temperature

[Temperature out of range]

Explanation The temperature measured by the thermal sensor shows a value outside the operational limits.

Recommended Action Change environment so that the chassis cools down.

??? Electrical Power

[Power Supply voltage level out of range]

Explanation The measured power supply levels are not within range.

Recommended Action Ensure proper voltage levels for both the electrical inputs.

??? Input Signal Power

[Input Signal level out of range]

Explanation The measured input signal power is not within range.

Recommended Action The device might be operating outside the configured input optical limits. Change the mean and trigger values appropriately, or check the equipment and link providing optical input to the unit.

??? Output Signal Power

[Output Signal level out of range]

Explanation The measured output signal power is not within range.

Recommended Action The device may be operating outside of specified limits or the mean and trigger are not properly defined. Change the mean and trigger values appropriately, vary the optical input, or change configured gain, so that the output signal power is in the operational range.

Appendix A Cisco ONS 15501 Alarms

??? Controller communication failure

[Communication with embedded controller failed]

Explanation The communication with the embedded controller has failed.

Recommended Action This denotes internal monitoring failure. The unit needs servicing if this alarm appears frequently.

??? Software Upgrade Initiated

[Software download started]

Explanation A TFTP or FTP request has been launched.

Recommended Action None.

??? Software Upgrade Failed

[Software download failed]

Explanation A TFTP or FTP request that was launched has failed.

Recommended Action Fix the reported problem (network issues, bad user-id or password, remote server not configured or not correct, file name, or file path incorrect) and relaunch software download with correct parameters.

??? Software Upgrade Completed

[Software download completed]

Explanation A TFTP or FTP request that was launched has completed.

Recommended Action None.

??? Software Reboot Initiated

[Software Reboot issued]

Explanation Reboot has been requested on the unit

Recommended Action None

??? Software Rolled Back

[Active and planned Software images are different]

Explanation The unit has booted from a bank that is not the programmed bank. This is possibly because the image from programmed bank was bad or because the boot loader was explicitly asked to boot from another bank (using the console during boot-up) or unit was frequently power-cycled.

Recommended Action If the image is bad, reprogram a good image on corrupted bank.

??? Configuration Changed

[Configurable value modified]

Explanation A writeable attribute has been modified through one of the management interfaces exposed by the system (for example, CLI or SNMP).

Recommended Action None

Appendix A Cisco ONS 15501 Alarms

??? Unacceptable Gain

[Measure signal gain is out of acceptable range]

Explanation The equipment is unable to achieve the planned level for gain.

Recommended Action Ensure that the optical input and environmental factors are within operational range. If the alarm is still present, the unit might need servicing.

??? Laser Pump Bad

[One or more of the laser pump(s) bad]

Explanation The measured parameters for the laser show that a laser pump has gone bad.

Recommended Action Ensure that the optical input and environmental factors are within operational range. If the alarm is still present, the unit needs servicing.

??? EEPROM bad

[EEPROM access showed up errors]

Explanation The writes and reads from EEPROM have problems.

Recommended Action If this problem recurs, it denotes a fault with the monitoring interface and may require servicing.

Appendix A Cisco ONS 15501 Alarms

A P P E N D I X B

Technical Specifications

This appendix describes the technical specifications for the Cisco ONS 15501. This appendix includes the following sections:

???Cisco ONS 15501 Optical Specifications, page B-1

???Cisco ONS 15501 Electrical Specifications, page B-1

???Cisco ONS 15501 Mechanical Specifications, page B-2

???Cisco ONS 15501 DC Input Power Requirements, page B-2

Cisco ONS 15501 Optical Specifications

Table 1-1 on page 1-2 lists the optical specifications of the Cisco ONS 15501.

Cisco ONS 15501 Electrical Specifications

The Cisco ONS 15501 power supply meets the electrical specifications listed in Table B-1.

Table B-1 Cisco ONS 15501 Electrical Specifications

Appendix B Technical Specifications

Cisco ONS 15501 Mechanical Specifications

Cisco ONS 15501 Mechanical Specifications

Table B-2 lists the mechanical specifications of the Cisco ONS 15501.

Table B-2 Cisco ONS 15501 Mechanical Specifications

Cisco ONS 15501 DC Input Power Requirements

Table B-3 lists the DC input power requirements of the Cisco ONS 15501.

Table B-3 DC Input Power Supply Specifications

A P P E N D I X C

Connector Pinouts

Figure C-1 shows the pin configuration of the RS-232 DB-9 type connector and the Alarm Out RJ-45 connector.

Appendix C Connector Pinouts

Figure C-1 RS-232 and RJ-45 Connector Pinouts

RS-232

(DB-9 connector, female)

Alarm out (RJ-45 connector)

4 3 2 1

68381

Pair 4

Pair 3

Pair 2

Pair 1

Pair 1 (pins 1???2): Shorted if LOS exists

Pair 2 (pins 3???4): Shorted if fault exists

Pair 3 (pins 5???6): Shorted if either power supply fails

Pair 4 (pins 7???8): Uncommitted (always shorted)

A P P E N D I X D

Time Zone Codes

Table D-1 lists time zones and their correlating abbreviations. Use the abbreviations when setting the time of your system. (See the set-time command for more information.)

Table D-1 Time Zone Codes

Appendix D Time Zone Codes

Table D-1 Time Zone Codes (continued)

A P P E N D I X E

Translated Safety Warnings

This appendix contains the translations of the following safety warnings, which are included in this guide:

???Wrist Strap Warning, page E-1

???Restricted Area Warning, page E-2

???Qualified Personnel Warning, page E-3

???DC Protection, page E-4

???Disconnect Device Warning, page E-5

???Laser Radiation Warning, page E-6

Wrist Strap Warning

Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the card. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself.

Waarschuwing Draag tijdens deze procedure aardingspolsbanden om te vermijden dat de kaart bes- chadigd wordt door elektrostatische ontlading. Raak het achterbord niet rechtstreeks aan met uw hand of met een metalen werktuig, omdat u anders een elektrische schok zou kunnen oplopen.

Varoitus K??yt?? t??m??n toimenpiteen aikana maadoitettuja rannesuojia est????ksesi kortin vauri- oitumisen s??hk??staattisen purkauksen vuoksi. ??l?? kosketa taustalevy?? suoraan k??dell??si tai metallisella ty??kalulla s??hk??iskuvaaran takia.

Attention Lors de cette proc??dure, toujours porter des bracelets antistatiques pour ??viter que des d??charges ??lectriques n???endommagent la carte. Pour ??viter l?????lectrocution, ne pas toucher le fond de panier directement avec la main ni avec un outil m??tallique.

Warnung Zur Vermeidung einer Besch??digung der Karte durch elektrostatische Entladung w??hrend dieses Verfahrens ein Erdungsband am Handgelenk tragen. Bei Ber??hrung der R??ckwand mit der Hand oder einem metallenen Werkzeug besteht Elektroschock- gefahr.

Appendix E Translated Safety Warnings

Avvertenza Durante questa procedura, indossare bracciali antistatici per evitare danni alla sche- da causati da un???eventuale scarica elettrostatica. Non toccare direttamente il pannel- lo delle connessioni, n?? con le mani n?? con un qualsiasi utensile metallico, perch?? esiste il pericolo di folgorazione.

Advarsel Bruk jordingsarmb??nd under prosedyren for ?? unng?? ESD-skader p?? kortet. Unng?? direkte ber??ring av bakplanet med h??nden eller metallverkt??y, slik at di ikke f??r elek- trisk st??t.

Aviso Durante este procedimento e para evitar danos ESD causados ?? placa, use fitas de liga????o ?? terra para os pulsos. Para evitar o risco de choque el??ctrico, n??o toque di- rectamente na parte posterior com a m??o ou com qualquer ferramenta met??lica.

??Advertencia! Usartiras conectadas a tierra en las mu??ecas durante este procedimiento para evitar da??os en la tarjeta causados por descargas electrost??ticas. No tocar el plano poste- rior con las manos ni con ninguna herramienta met??lica, ya que podr??a producir un choque el??ctrico.

Varning! Anv??nd jordade armbandsremmar under denna procedur f??r att f??rhindra elek- trostatisk skada p?? kortet. R??r inte vid baksidan med handen eller metallverktyg d?? detta kan orsaka elektrisk st??t.

Restricted Area Warning

Warning This unit is intended for installation in restricted access areas. A restricted access area is where access can only be gained by service personnel through the use of a spe- cial tool, lock and key, or other means of security, and is controlled by the authority responsible for the location.

Waarschuwing Dit toestel is bedoeld voor installatie op plaatsen met beperkte toegang. Een plaats met beperkte toegang is een plaats waar toegang slechts door servicepersoneel verkregen kan worden door middel van een speciaal instrument, een slot en sleutel, of een ander veiligheidsmiddel, en welke beheerd wordt door de overheidsinstantie die verantwoordelijk is voor de locatie.

Varoitus T??m?? laite on tarkoitettu asennettavaksi paikkaan, johon p????sy on rajoitettua. Paikka, johon p????sy on rajoitettua, tarkoittaa paikkaa, johon vain huoltohenkil??st?? p????see jonkin erikoisty??kalun, lukkoon sopivan avaimen tai jonkin muun turvalaitteen avulla ja joka on paikasta vastuussa olevien toimivaltaisten henkil??iden valvoma.

Attention Cet appareil est ?? installer dans des zones d???acc??s r??serv??. Ces derni??res sont des zones auxquelles seul le personnel de service peut acc??der en utilisant un outil sp??- cial, un m??canisme de verrouillage et une cl??, ou tout autre moyen de s??curit??. L???acc??s aux zones de s??curit?? est sous le contr??le de l???autorit?? responsable de l???emplacement.

Appendix E Translated Safety Warnings

Warnung Diese Einheit ist zur Installation in Bereichen mit beschr??nktem Zutritt vorgesehen. Ein Bereich mit beschr??nktem Zutritt ist ein Bereich, zu dem nur Wartungspersonal mit einem Spezialwerkzeugs, Schlo?? und Schl??ssel oder anderer Sicherheitsvorkehrun- gen Zugang hat, und der von dem f??r die Anlage zust??ndigen Gremium kontrolliert wird.

Avvertenza Questa unit?? deve essere installata in un'area ad accesso limitato. Un'area ad acces- so limitato ?? un'area accessibile solo a personale di assistenza tramite un'attrezzo speciale, lucchetto, o altri dispositivi di sicurezza, ed ?? controllata dall'autorit?? re- sponsabile della zona.

Advarsel Denne enheten er laget for installasjon i omr??der med begrenset adgang. Et omr??de med begrenset adgang gir kun adgang til servicepersonale som bruker et spesielt verkt??y, l??s og n??kkel, eller en annen sikkerhetsanordning, og det kontrolleres av den autoriteten som er ansvarlig for omr??det.

Aviso Esta unidade foi concebida para instala????o em ??reas de acesso restrito. Uma ??rea de acesso restrito ?? uma ??rea ?? qual apenas tem acesso o pessoal de servi??o autorizado, que possua uma ferramenta, chave e fechadura especial, ou qualquer outra forma de seguran??a. Esta ??rea ?? controlada pela autoridade respons??vel pelo local.

??Advertencia! Esta unidad ha sido dise??ada para instalarse en ??reas de acceso restringido. ??rea de acceso restringido significa un ??rea a la que solamente tiene acceso el personal de servicio mediante la utilizaci??n de una herramienta especial, cerradura con llave, o alg??n otro medio de seguridad, y que est?? bajo el control de la autoridad responsable del local.

Varning! Denna enhet ??r avsedd f??r installation i omr??den med begr??nsat tilltr??de. Ett omr??de med begr??nsat tilltr??de f??r endast tilltr??das av servicepersonal med ett speciellt verk- tyg, l??s och nyckel, eller annan s??kerhetsanordning, och kontrolleras av den auk- toritet som ansvarar f??r omr??det.

Qualified Personnel Warning

Warning Only trained and qualified personnel should be allowed to install or replace this equip- ment.

Waarschuwing Installatie en reparaties mogen uitsluitend door getraind en bevoegd personeel uit- gevoerd worden.

Varoitus Ainoastaan koulutettu ja p??tev?? henkil??kunta saa asentaa tai vaihtaa t??m??n laitteen.

Avertissement Tout installation ou remplacement de l'appareil doit ??tre r??alis?? par du personnel qualifi?? et comp??tent.

Achtung Ger??t nur von geschultem, qualifiziertem Personal installieren oder auswechseln las- sen.

Appendix E Translated Safety Warnings

Avvertenza Solo personale addestrato e qualificato deve essere autorizzato ad installare o sosti- tuire questo apparecchio.

Advarsel Kun kvalifisert personell med riktig oppl??ring b??r montere eller bytte ut dette utstyret.

Aviso Este equipamento dever?? ser instalado ou substitu??do apenas por pessoal devida- mente treinado e qualificado.

??Atenci??n! Estos equipos deben ser instalados y reemplazados exclusivamente por personal t??c- nico adecuadamente preparado y capacitado.

Varning Denna utrustning ska endast installeras och bytas ut av utbildad och kvalificerad per- sonal.

DC Protection

Warning This product relies on the building???s installation for short-circuit (overcurrent) protec- tion. Ensure that a Listed and Certified fuse or circuit breaker 25A, minimum 60VDC, is used on all current-carrying conductors.

Waarschuwing Dit product moet worden beveiligd tegen kortsluiting (overstroom) door de installatie van het gebouw. Zorg dat er een goedgekeurde zekering of stroomonderbreker (25 A, minimaal 60 V gelijkstroom) op alle stroomdragende geleiders staat.

Varoitus T??m?? laite k??ytt???? rakennuksen oikosulkusuojausta (ylivirtasuojausta). Varmista, ett?? kaikissa virtajohtimissa k??ytet????n hyv??ksyttyj?? sulakkeita tai katkaisijoita (25 A, v??hint????n 60 V tasavirtaa).

Attention La protection de ce produit contre les courts-circuits (surtensions) doit ??tre assur??e par la configuration ??lectrique du b??timent. V??rifiez que tous les conducteurs de cou- rant sont ??quip??s d'un fusible ou d'un disjoncteur de 25 A et d'un minimum de 60 V cc, normalis?? et homologu??.

Warnung Dieses Produkt erfordert Geb??ude-Absicherung gegen Kurzschl??sse (??berstrom). Achten Sie darauf, da?? auf allen stromf??hrenden Leitern eine anerkannte, zugelassene Sicherung oder ein Stromkreisunterbrecher 25A, Minimum 60VDC, verwendet wird.

Avvertenza Questo prodotto fa affidamento sulla protezione dell'edificio contro i cortocircuiti. Ac- certarsi che un fusibile o interruttore di circuito omologato da 25 A, 60 V c.c. minimo, venga utilizzato su tutti i conduttori sotto tensione.

Advarsel Dette produktet er avhengig av bygningens installasjon for beskyttelse mot kortslut- ning (overspenning). P??se at en oppf??rt og godkjent sikring eller str??mbryter, p?? 25 A, minimum 60 volt likestr??m, brukes p?? alle str??mf??rende ledere.

Appendix E Translated Safety Warnings

Aviso Este produto depende da instala????o existente no edif??cio para a protec????o contra cur- to-circuito (sobrecarga). Certifique-se de que um fus??vel ou disjuntor listado e certifi- cado de 25 A, m??nimo 60 VDC, seja utilizado em todos os condutores de transporte de corrente.

Advertencia Este producto cuenta con la instalaci??n del edificio para la protecci??n de cortocircui- tos (sobrecorriente). Aseg??rese de usar un fusible listado y certificado o cortacircui- tos 25A, m??nimo 60 V cc, en todos los conductores de corriente.

Varning! Denna produkt f??rlitar sig p?? byggnadens installation f??r skydd mot kortslutning (??ver- str??m). Se till att en registrerad och certifierad s??kring eller ett ??versp??nningsskydd p?? 25 A, minst 60 V likstr??m, anv??nds p?? alla str??mf??rande ledare.

Disconnect Device Warning

Warning A readily accessible disconnect device must be incorporated in the building's instal- lation wiring.

Waarschuwing Er moet in de installatiebedrading van het gebouw een gemakkelijk toegankelijke ont- koppelingsvoorziening aangebracht worden.

Varoitus Rakennuksen asennusjohdotukseen on asennettava helposti k??ytett??viss?? oleva kat- kaisin.

Attention L'installation ??lectrique de l'immeuble doit inclure un dispositif de d??connexion fac- ilement accessible.

Warnung Eine leicht zug??ngliche Trennvorrichtung muss in der Verdrahtung des Geb??udes eingebaut sein.

Avvertenza Il quadro dell'impianto elettrico dell'edificio deve essere provvisto di un dispositivo di sezionamento facilmente accessibile.

Advarsel Bygningens installerte ledningsnett skal inneholde en frakoblingsenhet som er lett tilgjengelig.

Aviso Um dispositivo de desconex??o de f??cil acesso deve ser incorporado a fia????o do edif??- cio.

??Advertencia! En el cableado del edificio se debe incorporar un dispositivo de desconexi??n que se encuentre accesible f??cilmente.

Varning! En l??ttillg??nglig str??mbrytare m??ste installeras i byggnadens ledningssystem.

Appendix E Translated Safety Warnings

Laser Radiation Warning

Warning Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or view directly with optical instruments.

Waarschuwing Losgekoppelde of losgeraakte glasvezels of aansluitingen kunnen onzichtbare laser- straling produceren. Kijk niet rechtstreeks in de straling en gebruik geen optische in- strumenten rond deze glasvezels of aansluitingen.

Varoitus Irrotetuista kuiduista tai liittimist?? voi tulla n??kym??t??nt?? lasers??teily??. ??l?? tuijota s??teit?? tai katso niit?? suoraan optisilla v??lineill??.

Attention Les fibres ou connecteurs d??branch??s risquent d'??mettre des rayonnements laser in- visibles ?? l'??il. Ne regardez jamais directement les faisceaux laser ?? l'??il nu, ni d'ailleurs avec des instruments optiques.

Warnung Unterbrochene Fasern oder Steckerverbindungenk??nnen unsichtbare Laserstrahlung abgeben.. Blicken Sie weder mit blo??em Auge noch mit optischen Instrumenten direkt in Laserstrahlen.

Avvertenza Le fibre ottiche ed i relativi connettori possono emettere radiazioni laser. I fasci di luce non devono mai essere osservati direttamente o attraverso strumenti ottici.

Advarsel Det kan forekomme usynlig laserstr??ling fra fiber eller kontakter som er frakoblet. Stirr ikke direkte inn i str??lene eller se p?? dem direkte gjennom et optisk instrument.

Aviso Radia????o laser invis??vel pode ser emitida de conectores ou fibras desconectadas. N??o olhe diretamente para os feixes ou com instrumentos ??pticos.

??Advertencia! Es posible que las fibras desconectadas emitan radiaci??n l??ser invisible. No fije la vista en los rayos ni examine ??stos con instrumentos ??pticos.

Varning! Osynlig laserstr??lning kan avges fr??n fr??nkopplade fibrer eller kontaktdon. Rikta inte blicken in i str??lar och titta aldrig direkt p?? dem med hj??lp av optiska instrument.

Index

Index

V

variable gain

network design features 1-4 variable optical attenuation. See VOA. VOA 1-4