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Cisco uBR7200 Series Universal Broadband
Router AC Power Supply Replacement
Instructions
Product Numbers: PWR-UBR7200-AC, PWR-UBR7200-AC=,
PWR-UBR7200/2-AC, CHAS-UBR7246VXR=, CHAS-UBR7246=,
CHAS-UBR7225VXR=, PWR-UBR7225VXR-AC
This document explains how to remove and replace the 550-watt (W) AC-input power supply in the Cisco uBR7200 series universal broadband routers (which consist of the Cisco uBR7246VXR and the Cisco uBR7246). It includes instructions for powering down the routers, removing an installed power supply, and installing a new power supply. This document also includes steps for verifying the initialization of the system after you power up a Cisco uBR7200 series router.
Note Use this document in conjunction with the , and Regulatory Compliance and Safety Information for the .
The following sections are included in this document:
•If You Need More Information, page 1
•AC-Input Power Supply Overview, page 2
•Installation Prerequisites, page 4
•Removing and Replacing an AC-Input Power Supply, page 8
•Obtaining Documentation and Submitting a Service Request, page 17
If You Need More Information
The Cisco IOS software running on your router contains extensive features and functionality. For additional information on configuring and maintaining the Cisco uBR7200 series, the following documentation resources are available:
Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA
© 2008 Cisco Systems, Inc. All rights reserved.
AC-Input Power Supply Overview
•For Cisco IOS software configuration information, refer to the modular configuration and modular command reference publications in the Cisco IOS software configuration documentation set that corresponds to the software release installed on your Cisco hardware.
Note You can access Cisco IOS software configuration documentation at Cisco.com.
•For hardware installation and maintenance information on the Cisco uBR7200 series, refer to the
•For international agency compliance, safety, and statutory information for wide-area network (WAN) interfaces for the Cisco uBR7200 series, refer to the Regulatory Compliance and Safety Information for the Cisco uBR7200 Series Universal Broadband Routers that is shipped with your Cisco uBR7200 series universal broadband router
•To obtain general information about documentation, refer to the “Obtaining Documentation and Submitting a Service Request” section on page 17.
AC-Input Power Supply Overview
The Cisco uBR7225VXR router is equipped with the 300W AC-input power supply and the maximum AC-input power with single or dual power supply configuration is 300W.
The Cisco uBR7246 and Cisco uBR7246VXR routers are equipped with the 550W AC-input power supplies and the maximum AC-input power with single or dual power supply configuration is 800W.
Note To ensure adequate airflow across the Cisco uBR7225VXR, Cisco uBR7246VXR, and Cisco uBR7246 universal broadband routers’ power supplies, a power supply or a power supply filler plate (with its attached air dam) must be installed in each power supply bay.
Do not mix AC-input and DC-input power supplies in the same Cisco uBR7246VXR or Cisco uBR7246 chassis.
Cisco uBR7225VXR
The power supply contains a main power switch, the OK LED, and the AC-input power receptacle. The grounding lug at the rear-bottom portion of the Cisco uBR7225VXR chassis provides a ground connection for electrostatic discharge (ESD) equipment.
The Cisco uBR7225VXR supports an optional, second power supply for load sharing and power redundancy. If you purchased a Cisco uBR7225VXR and you want to install a second power supply, you must order the second power supply separately.
A handle on the AC-input power supply unit provides a grip point for removing and replacing the power supply. (Figure 1 shows the faceplate of the Cisco uBR7225VXR AC-input power supply.)
A single captive installation screw secures the power supply to the chassis and seats the power supply in the router midplane. The AC-input power supply has a receptacle for an AC-input power cable. A modular power cable connects the AC-input power supply to the site AC power source.
Note The AC-input power supply has an electrical current rating of 4A for the Cisco uBR7225VXR.
Cisco uBR7200 Series Universal Broadband Router AC Power Supply Replacement Instructions
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AC-Input Power Supply Overview
The Cisco uBR7225VXR power supply device does not have a cable retention clip.
Figure 1 |
Cisco uBR7225VXR AC-Input Power Supply |
Power
switch
Captive 
installation
screw
AC-input Handle receptacle
uBR7225-VXR
uBR7225-VXR |
270538 |
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The Cisco uBR7225VXR power supply shuts itself down when the input AC voltage, the output DC voltage, or the internal temperature of the chassis exceeds allowable tolerances. When this occurs, one or both of the power supply front panel LEDs will turn red. The Cisco uBR7225VXR power supply must then be reset by manually switching the power switch off and then back on to allow it to recover.
Cisco uBR7246 and Cisco uBR7246VXR
The power supply contains a main power switch, OK LED, and either an AC-input power receptacle, or two hardwired DC-input power leads and three M5 grounding connectors (depending on the type of installed power supply). Adjacent to the lower power supply bay, two M5 chassis grounding receptacles provide a chassis ground connection for electrostatic discharge (ESD) equipment or a two-hole grounding lug for the AC-input power supplies.
The Cisco uBR7246VXR and Cisco uBR7246 support an optional, second power supply for load sharing and power redundancy. If you purchased a Cisco uBR7246VXR or Cisco uBR7246 and you want to install a second power supply, you must order the second power supply separately.
A handle on the AC-input power supply unit provides a grip point for removing and replacing the power supply. (Figure 2 shows the faceplate of the Cisco uBR7246VXR and Cisco uBR7246 AC-input power supply.)
Two captive installation screws secure the power supply to the chassis and seat the power supply in the router midplane. A Power OK LED indicates that the power supply is delivering +5 VDC to the router midplane.
The AC-input power supply has a receptacle for an AC-input power cable. A modular power cable connects the AC-input power supply to the site AC power source. A cable-retention clip secures the power cable to the AC-input power supply.
Note Each AC-input power supply has an electrical current rating of 7A.
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Installation Prerequisites
Figure 2 |
Cisco uBR7246 and Cisco uBR7246VXR AC-Input Power Supply |
Cable-retention clip
Captive installation screw 
H10074
AC-input receptacle |
Power switch |
Handle |
Caution When the input power to Cisco uBR7246 universal broadband router power supply is disconnected or lost, the power supply enters a reset cycle for 10 seconds. Wait at least 10 seconds or move the power switch from one position to the other to restart the power supply. For example, if the power supply was on when the power was disconnected or lost, move the power switch to the off position then back to the on position. If you do not wait the full 10 seconds or move the power switch from one position to the other, the power supply does not restart.
Installation Prerequisites
This section provides a list of parts and tools you need to remove and replace the AC-input power supply in the Cisco uBR7200 series routers. This section also includes safety and ESD-prevention guidelines to help you avoid injury to yourself and damage to the equipment.
Parts and Tools
You need the following tools and parts to remove and replace the AC-input power supply in the Cisco uBR7200 series. If you need additional equipment, contact a service representative for ordering information.
•An AC-input power supply
•Number 2 Phillips screwdriver
•3/16-inch flat-blade screwdriver
•Several cable ties (if the router is mounted in an equipment rack)
Safety Guidelines
Following are safety guidelines that you should follow when working with any equipment that connects to electrical power or telephone wiring.
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Safety Warnings
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, might harm you. A warning symbol precedes each warning statement.
Warning Definition
Warning 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 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 veiligheidsen andere voorschriften) raadplegen dat bij dit toestel is ingesloten.
Varoitus 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 laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten 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 équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d’avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.
Warnung 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 Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät 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 (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.
Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare 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
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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 símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. 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 documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.
¡Advertencia! 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 una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.
Varning! 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 förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information
(Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.
Electrical Equipment Guidelines
Follow these basic guidelines when working with any electrical equipment:
•Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.
•Disconnect all power and external cables before moving a chassis.
•Do not work alone if potentially hazardous conditions exist.
•Never assume that power has been disconnected from a circuit; always check.
•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.
•Carefully examine your work area for possible hazards such as moist floors, ungrounded power extension cables, and missing safety grounds.
Telephone Wiring Guidelines
Use the following guidelines when working with any equipment that is connected to telephone wiring or to other network cabling:
•Never install telephone wiring during a lightning storm.
•Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
•Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
•Use caution when installing or modifying telephone lines.
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