Cisco 10720 Internet Router Uplink Cards
Installation and Configuration
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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
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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.)
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Cisco 10720 Internet Router Uplink Cards Installation and Configuration
Troubleshooting the RPR/SRP Uplink Card Installation5-14
Troubleshooting the POS Uplink Card Installation5-15
Alarm Processing5-15
Loopback Testing5-17
Additional Troubleshooting Resources5-17
Cleaning the Fiber-Optic Connections5-17
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Cisco 10720 Internet Router Uplink Cards Installation and Configuration
v
Contents
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Cisco 10720 Internet Router Uplink Cards Installation and Configuration
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Preface
This preface describes the objectives and organization of this document and explains how to find
additional information on related products and services. This preface contains the following sections:
• Objectives, page vii
• Organization, page viii
• Electromagnetic Compliance, page ix
• Translated Safety Warnings, page x
• Related Documentation, page xii
• Obtaining Documentation, page xii
• Documentation Feedback, page xiii
• Cisco Product Security Overview, page xiii
• Obtaining Technical Assistance, page xiv
• Obtaining Additional Publications and Information, page xvi
Document Revision History
Objectives
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The document revision history is in Table 1.
Document VersionDateNotes
78-13113-06 B0January, 2006This revision contains a .change to the SFP-OC48-SR=
power budget listed in Table 1-6.
This document describes how to install and troubleshoot the Cisco 10720 Internet Router uplink cards
For complete descriptions of interface subcommands and the configuration options that support the
Cisco 10720 Internet Router uplink cards functionality, refer to the publications listed in the “Related
Documentation” section on page xii.
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
vii
Organization
‘
Preface
This publication uses the following terminology to refer to the router and the uplink cards:
Product NameReference
Cisco 10720 Internet Routerrouter
OC-48/STM-16c SRP Uplink Module
—Short Reach (SR) 2 km
uplink card or
DPT uplink card
—Intermediate Reach (IR) 15 km
—Long Reach 1 (LR1) 40 km
—Long Reach 2 (LR2) 80 km
OC-48/STM-16c POS/SRP Uplink Module
—Short Reach (SR) 2 km
uplink card or
POS/DPT uplink card
—Intermediate Reach (IR) 15 km
—Long Reach 1 (LR1) 40 km
—Long Reach 2 (LR2) 80 km
OC-48 RPR/SRP Uplink Module
—Short Reach (SR) 2 km
uplink card or
RPR/SRP uplink card
—Intermediate Reach (IR) 15 km
—Long Reach 2 (LR2) 80 km
Console/auxiliary moduleuplink card
1
or
console/auxiliary card
1. “Uplink card” is used to refer to the DPT and POS uplink cards and the console/auxiliary card where differences between
them are not relevant.
Organization
This document contains the following chapters:
SectionTitleDescription
Chapter 1Overview and SpecificationsProvides an overview and specifications for the
Chapter 2Preparing for InstallationProvides information for preparing to install an
Chapter 3Installing and Removing the Uplink
Cards
uplink cards. It also provides translated safety
warnings.
uplink card.
Provides installation and removal instructions for
the uplink card and cable-management system. It
also provides information and links to documents
containing configuration information for the
uplink cards.
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Preface
SectionTitleDescription
Chapter 4Creating a Four-Node Ring Using
the Uplink Cards
Chapter 5Troubleshooting the Uplink CardsProvides troubleshooting information for
Electromagnetic Compliance
Electromagnetic compliance information is presented in the following sections:
• Electromagnetic Compatibility Regulatory Statements, page ix
• Site Wiring Distance and Interference Guidelines, page ix
Electromagnetic Compliance
Provides information for creating a four-node
DPT ring using the DPT uplink card or IEEE
802.17 ring using the RPR/SRP uplink card.
checking the uplink card installation, as well as
alarm message information and solutions to the
problems.
For regulatory, compliance and safety information, see the Regulatory Compliance and Safety
inforamtion for the Cisco 10720 Internet Router document.
Site Wiring Distance and Interference Guidelines
This section offers site wiring guidelines for setting up the site plant wiring and cabling. When planning
the location of the new system, consider the following:
• Electromagnetic Interference, page ix
• Distance Limitations for Signaling and Unshielded Conductors, page x
Electromagnetic Interference
Electromagnetic interference can occur between the field and the signals on the wires when the wires are
run for any significant distance. This fact has two implications for the construction of plant wiring:
• Poor wiring practice can result in radio interference emanating from the plant wiring.
• Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy and/or cause
interference with the signal drivers and receivers in the Cisco 10720 Internet Router, and can create
an electrical hazard by conducting power surges through lines and into equipment.
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NoteTo predict and remedy strong EMI, consult experts in radio frequency interference (RFI).
A good quality twisted pair cable or shielded twisted pair cable helps limit radiation and noise induced
into the cable minimizing:
• Potential for radio interference
• Potential for interference with the data transmission.
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
ix
Translated Safety Warnings
Distance Limitations for Signaling and Unshielded Conductors
Give special consideration to the effect of a lightning strike in the site vicinity if wires exceed
recommended distances, or if wires pass between buildings. The electromagnetic pulse (EMP) caused
by lightning or other high-energy phenomena can easily couple enough energy into unshielded
conductors to destroy electronic devices.
Provide a properly grounded and shielded environment. Consider electrical surge suppression issues by
addressing the following items:
• Potential surge sources
• Distance
CautionSplicing can degrade cable performance.
Translated Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may
harm you. A warning symbol precedes each warning statement. The following paragraph is an example
of a safety warning. It identifies the warning symbol and associates it with a bodily injury hazard. The
remaining paragraphs in this section are translations of the initial safety warning.
Preface
NoteFor a complete list of translated safety warnings, read the Regulatory Compliance and Safety
Warning
Waarschuwing
Varoitus
Information for the Cisco 10720 Internet Router publication that accompanies your
Cisco 10720 Internet Router. We recommend you read and understand the safety warnings and
guidelines before installing, configuring, or maintaining the router.
This warning symbol means danger. You are in a situation that could cause bodily injury. Before you
work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar
with standard practices for preventing accidents. (To see translations of the warnings that appear in
this publication, refer to the appendix “Translated Safety Warnings” in the installation guide that
accompanied this device.)
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 aanhangsel “Translated Safety Warnings” (Vertalingen van
veiligheidsvoorschriften) in de installatiegids die bij dit toestel is ingesloten, raadplegen.
Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen
kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja
tavanomaisista onnettomuuksien ehkäisykeinoista. (Tässä julkaisussa esiintyvien varoitusten
käännökset löydät tämän laitteen mukana olevan asennusoppaan liitteestä "Translated Safety
Warnings" (käännetyt turvallisuutta koskevat varoitukset).)
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
x
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Preface
Translated Safety Warnings
Attention
Warnung
Avvertenza
Advarsel
Ce symbole d’avertissement indique un danger. Vous vous trouvez dans une situation pouvant
entraîner des blessures. Avant d’accéder à cet équipement, soyez conscient des dangers posés par
les circuits électriques et familiarisez-vous avec les procédures courantes de prévention des
accidents. Pour obtenir les traductions des mises en garde figurant dans cette publication, veuillez
consulter l’annexe intitulée « Translated Safety Warnings » (Traduction des avis de sécurité) dans
le guide d’installation qui accompagne cet appareil.
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer
Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien
Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur
Vermeidung von Unfällen bewußt. (Übersetzungen der in dieser Veröffentlichung enthaltenen
Warnhinweise finden Sie im Anhang mit dem Titel “Translated Safety Warnings” (Übersetzung der
Warnhinweise) in der diesem Gerät beiliegenden Installationsanleitung.)
Questo simbolo di avvertenza indica un pericolo. Si è in una situazione che può causare infortuni.
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 nell’appendice, “Translated
Safety Warnings” (Traduzione delle avvertenze di sicurezza), del manuale d’installazione che
accompagna questo dispositivo.
Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før
du utfører arbeid på utstyr, må du være oppmerksom på de faremomentene som elektriske kretser
innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. (Hvis du vil se
oversettelser av de advarslene som finnes i denne publikasjonen, kan du se i vedlegget "Translated
Safety Warnings" [Oversatte sikkerhetsadvarsler] i installasjonsveiledningen som ble levert med
denne enheten.)
Aviso
¡Advertencia!
Varning!
Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos
fisicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos
relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir
possíveis acidentes. (Para ver as traduções dos avisos que constam desta publicação, consulte o
apêndice “Translated Safety Warnings” - “Traduções dos Avisos de Segurança”, no guia de
instalação que acompanha este dispositivo).
Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular
cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los
procedimientos estándar de prevención de accidentes. (Para ver traducciones de las advertencias
que aparecen en esta publicación, consultar el apéndice titulado “Translated Safety Warnings,”
en la guía de instalación que se acompaña con este dispositivo.)
Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till
personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med
elkretsar och känna till vanligt förfarande för att förebygga skador. (Se förklaringar av de varningar
som förekommer i denna publikation i appendix "Translated Safety Warnings" [Översatta
säkerhetsvarningar] i den installationshandbok som medföljer denna anordning.)
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Cisco 10720 Internet Router Uplink Cards Installation and Configuration
xi
Related Documentation
Related Documentation
The following section lists some reference material out of the Cisco.com library that may be useful for
configuring and maintaining the Cisco 10720 Internet Router:
• Cisco 10720 Internet Router Installation and Configuration Guide
• Regulatory Compliance and Safety Information for the Cisco 10720 Internet Router
• Cisco IOS Software Configuration for the Cisco 10720 Internet Router
• IEEE 802.17 Resilient Packet Ring Feature Guide
• Release Notes for Cisco IOS Release 12.0 SP
• Cisco IOS Release 12.0 Command Reference
• Inspection and Cleaning Procedures for Fiber-Optic Connections
• Compressed Air Cleaning Issues for Fiber-Optic Connections
Obtaining Documentation
Preface
Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several
ways to obtain 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 at this URL:
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You can access the Cisco website at this URL:
http://www.cisco.com
You can access international Cisco websites at this URL:
The Product Documentation DVD is a comprehensive library of technical product documentation on a
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Certain products also have .PDF versions of the documentation available.
xii
The Product Documentation DVD is available as a single unit or as a subscription. Registered Cisco.com
users (Cisco direct customers) can order a Product Documentation DVD (product number
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Cisco 10720 Internet Router Uplink Cards Installation and Configuration
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Preface
Ordering Documentation
Registered Cisco.com users may order Cisco documentation at the Product Documentation Store in the
Cisco Marketplace at this URL:
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Nonregistered Cisco.com users can order technical documentation from 8:00 a.m. to 5:00 p.m.
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Documentation Feedback
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You can submit comments about Cisco documentation by using the response card (if present) behind the
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We appreciate your comments.
Cisco Product Security Overview
Cisco provides a free online Security Vulnerability Policy portal at this URL:
From this site, you will find information about how to:
• Report security vulnerabilities in Cisco products.
• Obtain assistance with security incidents that involve Cisco products.
• Register to receive security information from Cisco.
A current list of security advisories, security notices, and security responses for Cisco products is
available at this URL:
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To see security advisories, security notices, and security responses as they are updated in real time, you
can subscribe to the Product Security Incident Response Team Really Simple Syndication (PSIRT RSS)
feed. Information about how to subscribe to the PSIRT RSS feed is found at this URL:
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
xiii
Obtaining Technical Assistance
Reporting Security Problems in Cisco Products
Cisco is committed to delivering secure products. We test our products internally before we release them,
and we strive to correct all vulnerabilities quickly. If you think that you have identified a vulnerability
in a Cisco product, contact PSIRT:
• For Emergencies only— security-alert@cisco.com
An emergency is either a condition in which a system is under active attack or a condition for which
a severe and urgent security vulnerability should be reported. All other conditions are considered
nonemergencies.
• For Nonemergencies— psirt@cisco.com
In an emergency, you can also reach PSIRT by telephone:
• 1 877 228-7302
• 1 408 525-6532
TipWe encourage you to use Pretty Good Privacy (PGP) or a compatible product (for example, GnuPG) to
encrypt any sensitive information that you send to Cisco. PSIRT can work with information that has been
encrypted with PGP versions 2.x through 9.x.
Preface
Never use a revoked or an expired encryption key. The correct public key to use in your correspondence
with PSIRT is the one linked in the Contact Summary section of the Security Vulnerability Policy page
at this URL:
The link on this page has the current PGP key ID in use.
If you do not have or use PGP, contact PSIRT at the aforementioned e-mail addresses or phone numbers
before sending any sensitive material to find other means of encrypting the data.
Obtaining Technical Assistance
Cisco Technical Support provides 24-hour-a-day award-winning technical assistance. The Cisco
Technical Support & Documentation website on Cisco.com features extensive online support resources.
In addition, if you have a valid Cisco service contract, Cisco Technical Assistance Center (TAC)
engineers provide telephone support. If you do not have a valid Cisco service contract, contact your
reseller.
Cisco Technical Support & Documentation Website
xiv
The Cisco Technical Support & Documentation website provides online documents and tools for
troubleshooting and resolving technical issues with Cisco products and technologies. The website is
available 24 hours a day, at this URL:
http://www.cisco.com/techsupport
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Preface
Access to all tools on the Cisco Technical Support & Documentation website requires a Cisco.com user
ID and password. If you have a valid service contract but do not have a user ID or password, you can
register at this URL:
http://tools.cisco.com/RPF/register/register.do
NoteUse the Cisco Product Identification (CPI) tool to locate your product serial number before submitting
a web or phone request for service. You can access the CPI tool from the Cisco Technical Support &
Documentation website by clicking the Tools & Resources link under Documentation & Tools.Choose
Cisco Product Identification Tool from the Alphabetical Index drop-down list, or click the Cisco
Product Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by
product ID or model name; by tree view; or for certain products, by copying and pasting show command
output. Search results show an illustration of your product with the serial number label location
highlighted. Locate the serial number label on your product and record the information before placing a
service call.
Submitting a Service Request
Obtaining Technical Assistance
Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3
and S4 service requests are those in which your network is minimally impaired or for which you require
product information.) After you describe your situation, the TAC Service Request Tool provides
recommended solutions. If your issue is not resolved using the recommended resources, your service
request is assigned to a Cisco engineer. The TAC Service Request Tool is located at this URL:
http://www.cisco.com/techsupport/servicerequest
For S1 or S2 service requests, or if you do not have Internet access, contact the Cisco TAC by telephone.
(S1 or S2 service requests are those in which your production network is down or severely degraded.)
Cisco engineers are assigned immediately to S1 and S2 service requests to help keep your business
operations running smoothly.
To open a service request by telephone, use one of the following numbers:
For a complete list of Cisco TAC contacts, go to this URL:
http://www.cisco.com/techsupport/contacts
Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco has established severity
definitions.
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Severity 1 (S1)—An existing network is down, or there is a critical impact to your business operations.
You and Cisco will commit all necessary resources around the clock to resolve the situation.
Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your
business operations are negatively affected by inadequate performance of Cisco products. You and Cisco
will commit full-time resources during normal business hours to resolve the situation.
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
xv
Obtaining Additional Publications and Information
Severity 3 (S3)—Operational performance of the network is impaired, while most business operations
remain functional. You and Cisco will commit resources during normal business hours to restore service
to satisfactory levels.
Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or
configuration. There is little or no effect on your business operations.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online
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• The Cisco Product Quick Reference Guide is a handy, compact reference tool that includes brief
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Preface
• Cisco Marketplace provides a variety of Cisco books, reference guides, documentation, and logo
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• Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and
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or view the digital edition at this URL:
xvi
http://ciscoiq.texterity.com/ciscoiq/sample/
• Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering
professionals involved in designing, developing, and operating public and private internets and
intranets. You can access the Internet Protocol Journal at this URL:
http://www.cisco.com/ipj
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
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Preface
Obtaining Additional Publications and Information
• Networking products offered by Cisco Systems, as well as customer support services, can be
obtained at this URL:
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• Networking Professionals Connection is an interactive website for networking professionals to share
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• World-class networking training is available from Cisco. You can view current offerings at
this URL:
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Obtaining Additional Publications and Information
Preface
xviii
Cisco 10720 Internet Router Uplink Cards Installation and Configuration
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CHAPTER
1
Overview and Specifications
This publication contains instructions for installing and configuring the OC-48 RPR/SRP,
OC-48/STM-16c DPT, and OC-48/STM-16c POS uplink cards as well as the console/auxiliary card on
the Cisco 10720 Internet Router.
Refer to the Cisco 10720 Internet Router Installation and Configuration Guide for more information
about this product line, and the Cisco IOS Software Configuration Guide for the Cisco 10720 Internet
Router
For the software information about the OC-48 RPR/SRP uplink card, refer to the IEEE 802.17 Resilient
Packet Ring Feature Guide.
The following information is found in this chapter:
• Product Number and Product Names, page 1-1
• DPT Uplink Card Faceplate and Specifications, page 1-2
• POS/DPT Uplink Card Faceplate and Specifications, page 1-3
• RPR/SRP Uplink Card Faceplate and Specifications, page 1-5
• OC48 SFP Module Specifications, page 1-5
• Optical Cable Specifications, page 1-6
• Console/Auxiliary Card Faceplate and Specifications, page 1-7
Product Number and Product Names
The following table provides product numbers and product names.
Product NumberProduct Name
10720-RPR-SFP=OC-48 RPR/SRP Uplink Module
10720-SR-LC=OC-48 SRP Short Reach 2-km Uplink Module
10720-LR1-LC-POS=OC-48 POS Long Reach 40-km Uplink Module
10720-LR2-LC-POS=OC-48 POS Long Reach 80-km Uplink Module
10720-CON-AUX=Console/Auxiliary Module
The Cisco 10720 Internet Router provides network access using Ethernet and optional Dynamic Packet
Transport (DPT), Packet over SONET (POS), or IEEE 802.17 RPR technology for optical connectivity.
Each router is equipped with one uplink card located in the upper card slot. The OC-48 RPR/SRP,
OC-48/STM-16c DPT, and POS/DPT uplink cards are equipped with dual OC-48c/STM-16c optical
uplink network ports with an aggregate bandwidth of 5 Gbps. The console/auxiliary card provides
console and serial (AUX) ports only.
Although the console/auxiliary card does not provide uplink capabilities, it is described here because it
is installed the same as the DPT and POS/DPT uplink cards. You can use the
Cisco 10720 Internet Router console/auxiliary card with either a 24-Port 10/100 Ethernet TX access
card or a Combined 4-Port Gigabit Ethernet 8-Port 10/100 Ethernet TX access card to customize the
Cisco 10720 Internet Router as an Ethernet-only router.
For DPT and POS/DPT uplink cards, the cable connector is LC fiber-optic connector. For the RPR/SRP
uplink card, the fiber-optic cable connects to an LC connector in a small form-factor pluggable (SFP)
optical connector. When connecting to DPT networks, the left port is the Spatial Reuse Protocol (SRP)
side A, and the right port is side B. (See Figure 1-1.) When connecting to POS networks, there are two
individual ports. Each port consists of transmit (TX) and receive (RX). (See Figure 1-2.) When
connecting to DPT networks in Resilient Pack Rings (IEEE 802.17 RPR) mode, the left port is span
West, and the right port is span East. When in the Spatial Reuse Protocol (SRP) mode, the left port is
side A, and the right port is side B. (See Figure 1-3.)
Chapter 1 Overview and Specifications
For information and instructions on connecting the optical cables to the DPT uplink card or to the
RPR/SRP uplink card and for setting up four-node rings, see Chapter 1, “Overview and Specifications”
and Chapter 4, “Creating a Four-Node Ring Using the Uplink Cards.”
DPT Uplink Card Faceplate and Specifications
This section provides faceplate identification and specifications for the DPT uplink card.
Figure 1-1Cisco 10720 Internet Router DPT Uplink Card
1
TX RXTX RX
10720-SR-LC
ACTIVE
RX PKT
CARRIER
PASS THRU
WRAP
AB
23
1Side A 6Side B RX
2Side A TX7Console port
3Side A RX8Auxiliary port
4Side B 9Reset switch
5Side B TX
This section provides faceplate identification and specifications for the POS/DPT uplink card.
Figure 1-2Cisco 10720 Internet Router POS/DPT Uplink Card
10720-SR-LC-POS
CARRIER
RX PKT
ACTIVE
SRP PASS
SRP WRAP
1
TXRX
SRP A
THRU
POS 1POS 2
23
47 89
TXRX
SRP B
56
CONSOLE AUX
RESET
POWER
SYSTEM STATUS
CARD FAIL
OVERTEMP
80227
78-13113-06 B0
1Side A for DPT; port 1 for POS6Side B/port 2 RX
2Side A/port 1 TX7Console port
3Side A/port 1 RX8Auxiliary port
4Side B for DPT; port 2 for POS9Reset switch
5Side B/port 2 TX
This section provides faceplate identification and specifications for the RPR/SRP uplink card.
Figure 1-3Cisco 10720 Internet Router RPR/SRP Uplink Card
1
10720-SR-LC
ACTIVE
RX PKT
CARRIER
PASS THRU
PROTECT
1
23
1Span West for RPR mode
6Span East/Side B RX
4
2
56
CONSOLEAUX
789
RESET
OVERTEMP
CARD FAIL
POWER
SYSTEM STATUS
116785
Side A for SRP mode
2Span West/Side A TX7Console port
3Span West/Side A RX8Auxiliary port
4Span East for RPR mode
9Reset switch
Side B for SRP mode
5Span East/Side B TX
The RPR/SRP uplink card supports small form-factor pluggable (SFP modules) optics. See Table 1-4 for
the SFP modules available and supported.
Table 1-3RPR/SRP Uplink Card Specifications
Product IDDescription
10720-RPR-SFP=
• Weight—3.0 lb (1.35 kg)
OC48 SFP Module Specifications
Table 1- 4, Tab l e 1-6, and Table 1- 5 provide specifications for the RPR/SRP SFP modules..
Table 1-4Small Form-Factor Pluggable (SFP) Modules for the RPR/SRP Uplink Card
Optical Cable DistanceSFP Product ID
Short Reach (SR) 1.2 miles (2 km)SFP-OC48-SR=
Intermediate Reach (IR)9.3 miles (15 km)SFP-OC48-IR1=
Long Reach 2 (LR2)50 miles (80 km)OC48-SFP-LR2=
78-13113-06 B0
• Dimensions—0.38 x 5.25 x 3.42 inches
(0.97 x 13.33 x 8.69 cm) H x W x D
Book Title
1-5
Optical Cable Specifications
Table 1-5OC48 SFP Module Specifications for the RPR/SRP Uplink Card
SpecificationDescription
Dimensions (H x W x D)0.34 in. x 0.54 in. x 2.2 in. (8.6 mm x 13.7 mm x 56.5 mm)
ConnectorsLC-type connector
WavelengthSFP-OC48-SR—1310 nm
Cabling Distance (maximum)
Operating temperature range22.9
Storage temperature range-40
1. Optical distances are only for reference in a typical application, actual distance will vary depending on the number of splices, quality
1
of fibres, and other significant factors
Chapter 1 Overview and Specifications
SFP-OC48-IR1—1310 nm
OC48-SFP-LR2—1550 nm
SFP-OC48-SR—1.2 miles (2 km)
SFP-OC48-IR1—9.3 miles (15 km)
OC48-SFP-LR2—50 miles (80 km)
o
F to 185o F (-5o C to 85o C)
o
F to 185o F (-40o to 85o C)
.
Table 1-6OC48 SFP Power Specificiations for the RPR/SRP Line Card
SFP ModuleTransmit PowerReceive PowerPower Budget
MaximumMinimumMaximumMinimum
SFP-OC48-SR=-3 dBm-10 dBm-3 dBm-18 dBm8.0 dBm
SFP-OC48-IR1=0 dBm-5 dBm0 dBm-18 dBm13 dBm
OC48-SFP-LR2=3 dBm-2 dBm-9 dBm-28 dBm26 dBm
Optical Cable Specifications
Table 1- 7 provides optical cable specifications for the uplink cards.
Table 1-7Uplink Card s Optical Cable Specifications
Operating
Uplink Card TypeConnector Type
Single-Mode
LC Duplex1310 nm–3 dBm (max)
Short-Reach
Single-Mode
LC Duplex1310 nm0 dBm (max)
Intermediate-Reach
Single-Mode
LC Duplex1310 nm3 dBm (max)
Long-Reach 1
Single-Mode
LC Duplex1550 nm3 dBm (max)
Long-Reach 2
1. If dBm levels are lower than specification requirements (too much power), add attenuation until correct readings apply. Attenuation should be added in
–5, –10, or –25 dBm increments.
2. If dBm levels are higher than specification requirements (not enough power), clean all optics and reduce number of fiber splices/connections. Verify the
integrity of the fiber cable, and make sure there are no kinks, breaks, tight coils, or bends.
WavelengthTransmit Power1
–10 dBm (min)
–5 dBm (min)
–2 dBm (min)
–2 dBm (min)
2
Receive SensitivityMinimum Distance
–3 dBm (max)
1.2 miles (2 km)
–18 dBm (min)
0 dBm (max)
9.3 miles (15 km)
–18 dBm (min)
–9 dBm (max)
25 miles (40 km)
–27 dBm (min)
–9 dBm (max)
50 miles (80 km)
–28 dBm (min)
1-6
Book Title
78-13113-06 B0
Chapter 1 Overview and Specifications
Console/Auxiliary Card Faceplate and Specifications
Additional feature information is available online in the Cisco IOS Software Configuration for the
Cisco 10720 Internet Router document and in the Cisco 10720 Internet Router Installation and
Configuration Guide, and the IEEE 802.17 Resilient Packet Ring Feature Guide located on Cisco.com.
Also see the the Cisco 10720 Internet Router Installation and Configuration Guide that accompanies
other marketing materials related to the Cisco 10720 Internet Router.
Console/Auxiliary Card Faceplate and Specifications
The console/auxiliary card contains a console and serial (AUX) port, as shown in Figure 1-4.
Figure 1-4Cisco 10720 Internet Router Console/Auxiliary Card
10720-CON-AUX
CONSOLE AUX
1 23
RESET
CARD FAIL
POWER
OVERTEMP
SYSTEM STATUS
122052
1Console port3Reset switch
2Auxiliary port
A reset switch is located on the right side of the front panel above the system LEDs. To reset the
Cisco 10720 Internet Router, use a sharp, pointed instrument to push the switch that is located behind
the panel.
Table 1-8Console/Auxiliary Card Specifications
Product ID
10720-CON-AUX=Console/auxiliary card
• Weight—2.4 lb (1.09 kg)
• Dimensions—0.38 x 5.25 x 3.42 inches
(0.97 x 13.33 x 8.69 cm) H x W x D
78-13113-06 B0
Book Title
1-7
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