Cisco uBR10012 Universal Broadband Router UBR10-FAN-ASSY=, Cisco uBR10012 Universal Broadband Router UBR10-FAN-CAB= Installation Manual

Cisco uBR10012 Universal Broadband Router
Fan Assembly Module

Part Number: OL-5093-02
First Published: August 31, 2001
Last Updated: March 24, 2011

Document Revision History

Date Revision Reason

03/24/2011 OL-5093-02 Added information about the UBR10012-FAN-PLUS= fan assembly

module.

10/21/2003 OL-5093-01 Moved document to online only, updated the information and format. The

printed document is obsolete.

08/31/2001 78-11491-01 Original publication.

Contents

This document includes procedures for installing and removing the fan assembly module that is shipped
with the Cisco uBR10012 universal broadband router. This document also includes technical
specifications and troubleshooting information.

• Objective, page 2

• Audience, page 2

• Overview, page 2

• Preparing to Unpack the Fan Assembly Module, page 6

• Installing the Fan Assembly Modules in the Chassis, page 14

• Removing and Replacing the Fan Assembly Module, page 16

Americas Headquarters:
Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Objective

Objective

Audience

• Troubleshooting the Fan Assembly, page 23

• Related Documentation, page 24

• Obtaining Documentation and Submitting a Service Request, page 25

The purpose of this document is to provide installation, removal, and troubleshooting information for
the fan assembly module installed in the Cisco uBR10012 universal broadband router.

This document is intended for field service engineers who are familiar with Cisco products and headend
cable installation procedures.

Warning

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

Statement 1030.

Overview

The Cisco uBR10012 chassis uses a fan assembly module containing fans to supply cooling air to the
chassis. The fan assembly connects to the chassis through a blind mate connector that plugs into the
cable assembly and then into the chassis backplane. The fan assembly modules are identified by their
product part numbers. The fan assembly modules supported on the Cisco uBR10012 chassis are:

• Fan Assembly Module (UBR10-FAN-ASSY=)

• Fan Assembly Module (UBR10012-FAN-PLUS=)

Fan Assembly Module (UBR10-FAN-ASSY=)

This fan assembly module as shown in Figure 1 has four internal fans that draw cooling air into the front
of the chassis and directs it across the internal components. The air is exhausted through the openings at
the rear of the chassis. The fan assembly module works at two speeds:

• Low speed (with a clean air filter)

• High speed (with a clean air filter)

The temperature of the fan module at the module air outlet determines the operating speed. Three LEDs
indicate the status of the fan assembly.

Cisco uBR10012 Universal Broadband Router Fan Assembly Module

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Figure 1 Fan Assembly Module (UBR10-FAN-ASSY=)

1

CISCO
10000

CISCO
10000

AUX

AUX

ACTIVITY

ETHERNET

ACTIVITY

LINK

ETHERNET

LINK

1 Fan assembly module —

Overview

56413

Table 1 lists the LEDs on the fan assembly module.

Table 1 Fan Assembly LEDs and Their Function

LED Status Description

FAN OK

Green This indicates that system is functioning normally; all fans are

operating.

SINGLE FAN FAIL

Yellow This indicates that one of the fans in the fan module has failed.

The fan module can still provide enough cooling to safely
operate the Cisco uBR10012 router chassis, but it might begin
operating the fans in its high-speed mode to do so. Replace the
fan assembly module as soon as possible.

MULTI FAN FAIL

Yellow This indicates that two or more fans in the module have failed,

and that the module is no longer able to consistently cool the
Cisco uBR10012 router chassis. To prevent overheating of the
chassis and possible damage to the line cards and other
modules, replace the fan assembly module immediately.

Four alarms (System OK, FAN-MISSING, PARTIAL-FAN Failure, and TOTAL-FAN Failure) are used
for monitoring the fan module.

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Overview

FAN OK

SINGLE

FAN FAIL

MULTI

FAN FAIL

PRODUCT ID

UBR10012-FAN-PLUS

Fan Assembly Module (UBR10012-FAN-PLUS=)

This fan assembly as shown in Figure 2 has nine internal fans that draw cooling air into the front of the
chassis and directs it across the internal components. This fan assembly module provides:

• Increased cooling capability

• Higher redundancy in case of a failure

• Repositioned thermal sensor that detects the ambient temperature of the cable plant or facility and

adjusts the variable fan speeds to maintain the temperature

Figure 2 Fan Assembly Module (UBR10012-FAN-PLUS=)

1

CISCO
10000

CISCO
10000

AUX

AUX

ACTIVITY

ETHERNET

ACTIVITY

LINK

ETHERNET

LINK

249821

1 Fan assembly module —

This fan assembly module works at four variable speed levels (0, 1, 2, and 3). The operating speed of the
fan is determined by the temperature of the facility. A thermistor, mounted on the fan assembly module,
is placed in front of the vent holes on the front panel. It measures the ambient air temperature on the
outside of the fan module. The threshold temperatures and speed levels are set internally and the fan
assembly controller monitors the thermistor and controls the speed of the fan. When powered on, the
fans operate at a speed according to the ambient average air temperature of the facility at the appropriate
speed level.

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Note On startup, it may take up to 30 seconds for the fans to stabilize at the appropriate speed.

Three LEDs indicate the status of the fan assembly. Table 1 lists the LEDs on the front panel of the fan
assembly module. In addition, there is a PRODUCT ID LED/switch on the front panel of the fan
assembly module (see Figure 3).

Figure 3 Front Panel of the Fan Assembly Module (UBR10012-FAN-PLUS)

UBR10012-FAN-PLUS

Overview

FAN FAIL

FAN FAIL

SINGLE

MULTI

FAN OK

PRODUCT ID

249855

Table 2 lists the default activation status of the PRODUCT ID LED/switch when it is shipped.

Table 2 PRODUCT ID LED/Switch Default Activation Status

PRODUCT ID

Ordered Equipment

LED/Switch Status

Fan module (spare) Activated

Fan module and Cisco uBR10012 chassis running unsupported Cisco IOS Release Not activated

Fan module and Cisco uBR10012 chassis running supported Cisco IOS Release

1. For information on Cisco IOS Releases that support the PRODUCT ID LED/switch feature, see the Cisco uBR10012 Router

Release Notes for Cisco IOS Release 12.2(33)SCE.

1

Activated

If the PRODUCT ID LED/switch is illuminated (green), the Cisco IOS software identifies the fan
assembly module as UBR10012-FAN-PLUS only if you are running a supported Cisco IOS release on
the chassis. Otherwise, the software reports the default UBR10-FAN-ASSY product part number and a
FAN-MISSING alarm may be randomly raised. To clear the alarm, see “Troubleshooting the Fan

Assembly” section on page 23.

Tip Use a small object, such as a paper clip, to press the PRODUCT ID LED/switch inside the cavity on the

front panel of the fan assembly module.

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Preparing to Unpack the Fan Assembly Module

Four alarms (System OK, FAN-MISSING, PARTIAL-FAN Failure, and TOTAL-FAN Failure) are used
for monitoring the fan module.

Table 3 summarizes the specifications of both the fan assembly modules.

Table 3 Specifications of the Fan Assembly Modules

Component UBR10012-FAN-PLUS= UBR10-FAN-ASSY=

Power Consumption (Max) 224 W 185 W

Fans 9 4

Operating Speed Levels 4 2

LEDs 3 3

PRODUCT ID LED/switch Yes No

Weight 22 lbs (10 kg) 30 lbs (3.16 kg)

Label on Front Panel Blue White

Preparing to Unpack the Fan Assembly Module

This section presents the following topics:

• Safety Guidelines, page 6

• Electrical Equipment Guidelines, page 10

• Preventing Electrostatic Discharge Damage, page 11

• Technical Specifications, page 12

• Unpacking and Preparing the Fan Assembly Module, page 13

Safety Guidelines

Follow the safety guidelines provided here, when working with any equipment that connects to electrical
power.

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Warning

Waarschuwing

IMPORTANT SAFETY INSTRUCTIONS

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 translated safety warnings that accompanied this device.

Note: SAVE THESE INSTRUCTIONS

Note: This documentation is to be used in conjunction with the specific product installation guide
that shipped with the product. Please refer to the Installation Guide, Configuration Guide, or other
enclosed additional documentation for further details.

BELANGRIJKE VEILIGHEIDSINSTRUCTIES

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 de standaard
praktijken om ongelukken te voorkomen. Voor een vertaling van de waarschuwingen die in deze
publicatie verschijnen, dient u de vertaalde veiligheidswaarschuwingen te raadplegen die bij dit
apparaat worden geleverd.

Opmerking BEWAAR DEZE INSTRUCTIES.

Opmerking Deze documentatie dient gebruikt te worden in combinatie met de
installatiehandleiding voor het specifieke product die bij het product wordt geleverd. Raadpleeg de
installatiehandleiding, configuratiehandleiding of andere verdere ingesloten documentatie voor
meer informatie.

Varoitus

TÄRKEITÄ TURVALLISUUTEEN LIITTYVIÄ OHJEITA

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 asiakirjassa esitettyjen varoitusten
käännökset löydät laitteen mukana toimitetuista ohjeista.

Huomautus SÄILYTÄ NÄMÄ OHJEET

Huomautus Tämä asiakirja on tarkoitettu käytettäväksi yhdessä tuotteen mukana tulleen
asennusoppaan kanssa. Katso lisätietoja asennusoppaasta, kokoonpano-oppaasta ja muista
mukana toimitetuista asiakirjoista.

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Attention

Warnung

IMPORTANTES INFORMATIONS DE SÉCURITÉ

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 les consignes de sécurité traduites qui accompagnent cet
appareil.

Remarque CONSERVEZ CES INFORMATIONS

Remarque Cette documentation doit être utilisée avec le guide spécifique d'installation du produit
qui accompagne ce dernier. Veuillez vous reporter au Guide d'installation, au Guide de
configuration, ou à toute autre documentation jointe pour de plus amples renseignements.

WICHTIGE SICHERHEITSANWEISUNGEN

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 sind im Lieferumfang des Geräts enthalten.

Hinweis BEWAHREN SIE DIESE SICHERHEITSANWEISUNGEN AUF

Hinweis Dieses Handbuch ist zum Gebrauch in Verbindung mit dem Installationshandbuch für Ihr
Gerät bestimmt, das dem Gerät beiliegt. Entnehmen Sie bitte alle weiteren Informationen dem
Handbuch (Installations- oder Konfigurationshandbuch o. Ä.) für Ihr spezifisches Gerät.

Figyelem!

Avvertenza

FONTOS BIZTONSÁGI ELÕÍRÁSOK

Ez a figyelmezetõ jel veszélyre utal. Sérülésveszélyt rejtõ helyzetben van. Mielõtt bármely
berendezésen munkát végezte, legyen figyelemmel az elektromos áramkörök okozta kockázatokra,
és ismerkedjen meg a szokásos balesetvédelmi eljárásokkal. A kiadványban szereplõ
figyelmeztetések fordítása a készülékhez mellékelt biztonsági figyelmeztetések között található.

Megjegyzés ÕRIZZE MEG EZEKET AZ UTASÍTÁSOKAT!

Megjegyzés Ezt a dokumentációt a készülékhez mellékelt üzembe helyezési útmutatóval együtt kell
használni. További tudnivalók a mellékelt Üzembe helyezési útmutatóban (Installation Guide),
Konfigurációs útmutatóban (Configuration Guide) vagy más dokumentumban találhatók.

IMPORTANTI ISTRUZIONI SULLA SICUREZZA

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle
persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli
relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Per le
traduzioni delle avvertenze riportate in questo documento, vedere le avvertenze di sicurezza che
accompagnano questo dispositivo.

Nota CONSERVARE QUESTE ISTRUZIONI

Nota La presente documentazione va usata congiuntamente alla guida di installazione specifica
spedita con il prodotto. Per maggiori informazioni, consultare la Guida all'installazione, la Guida
alla configurazione o altra documentazione acclusa.

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Advarsel

Aviso

VIKTIGE SIKKERHETSINSTRUKSJONER

Dette varselssymbolet betyr fare. Du befinner deg i en situasjon som kan forårsake personskade.
Før du utfører arbeid med utstyret, bør du være oppmerksom på farene som er forbundet med
elektriske kretssystemer, og du bør være kjent med vanlig praksis for å unngå ulykker. For å se
oversettelser av advarslene i denne publikasjonen, se de oversatte sikkerhetsvarslene som følger
med denne enheten.

Merk TA VARE PÅ DISSE INSTRUKSJONENE

Merk Denne dokumentasjonen skal brukes i forbindelse med den spesifikke
installasjonsveiledningen som fulgte med produktet. Vennligst se installasjonsveiledningen,
konfigureringsveiledningen eller annen vedlagt tilleggsdokumentasjon for detaljer.

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. O utilizador encontra-se numa situação que poderá ser
causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha em
atenção os perigos envolvidos no manuseamento de circuitos eléctricos e familiarize-se com as
práticas habituais de prevenção de acidentes. Para ver traduções dos avisos incluídos nesta
publicação, consulte os avisos de segurança traduzidos que acompanham este dispositivo.

Nota GUARDE ESTAS INSTRUÇÕES

Nota Esta documentação destina-se a ser utilizada em conjunto com o manual de instalação
incluído com o produto específico. Consulte o manual de instalação, o manual de configuração ou
outra documentação adicional inclusa, para obter mais informações.

¡Advertencia!

Varning!

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular
cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los
procedimientos estándar de prevención de accidentes. Vea las traducciones de las advertencias
que acompañan a este dispositivo.

Nota GUARDE ESTAS INSTRUCCIONES

Nota Esta documentación está pensada para ser utilizada con la guía de instalación del producto
que lo acompaña. Si necesita más detalles, consulte la Guía de instalación, la Guía de
configuración o cualquier documentación adicional adjunta.

VIKTIGA SÄKERHETSANVISNINGAR

Denna varningssignal 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 vanliga förfaranden för att förebygga olyckor. Se översättningarna av de
varningsmeddelanden som finns i denna publikation, och se de översatta säkerhetsvarningarna som
medföljer denna anordning.

OBS! SPARA DESSA ANVISNINGAR

OBS! Denna dokumentation ska användas i samband med den specifika
produktinstallationshandbok som medföljde produkten. Se installationshandboken,
konfigurationshandboken eller annan bifogad ytterligare dokumentation för närmare detaljer.

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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 where you are working.

• Disconnect all power and external cables before moving a chassis.

• Do not work alone when 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.

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• Carefully examine your work area for possible hazards such as moist floors, ungrounded power

extension cables, and missing safety grounds.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage, which occurs when electronic cards or components are
improperly handled, can result in complete or intermittent failures. The AC-input power shelf and its AC
power modules contain a printed circuit card that is fixed in a metal carrier. Electromagnetic interference
(EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps
to protect the cards from ESD, use an antistatic strap each time you handle the modules.

Following are guidelines for preventing ESD damage:

• Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact.

Before removing a card from the chassis, connect the equipment end of the strap to a bare metal,
unpainted surface on the chassis, or rack-mount.

• Handle components by the carrier edges only; avoid touching the card components or any connector

pins.

• When removing a module, place it on an antistatic surface or in a static-shielding bag. If the module

is to be returned to the factory, immediately place it in a static-shielding bag.

Preparing to Unpack the Fan Assembly Module

• Avoid contact between the modules and clothing. The wrist strap protects the card from ESD

voltages on the body only; ESD voltages on clothing can still cause damage.

Caution For safety, periodically check the resistance value of the anti-static strap. The measurement should

be between 1 and 10 megohms (Mohm).

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Technical Specifications

Table 4 lists the specifications for the UBR10-FAN-ASSY= fan assembly module.

Table 4 Technical Specifications (UBR10-FAN-ASSY=)

Description Specifications

Product number (fan assembly) UBR10-FAN-ASSY=

Product number (cable) UBR10-FAN-CAB=

Dimensions

Weight 30 lbs (13.6 kg)

Power consumption

Temperature range

Relative humidity

Operating altitude –197 to 13,123 ft (–60 to 4000 m)

• Height: 5.85 in. (14.9 cm)

• Width: 17 in. (43.2 cm)

• Depth: 20 in. (50.8 cm)

185 W max

• Operating: 41° to 104° F (5° to 40° C)

• Storage: –40° to 158° F (–40° to 70° C)

• Operating: 5% to 85%

• Storage: 5% to 95%

Table 5 lists the specifications for the UBR10012-FAN-PLUS= fan assembly module.

Table 5 Technical Specifications (Cisco UBR10012-FAN-PLUS=)

Description Specifications

Product number (fan assembly) UBR10012-FAN-PLUS=

Product number (cable) UBR10-FAN-CAB=

Dimensions

• Height: 5.85 in. (14.9 cm)

• Width: 17 in. (43.2 cm)

• Depth: 20 in. (50.8 cm)

Weight 22 lbs (10 kg)

Power consumption

224 W max (4 amps, not to exceed 6 amps at startup)

Acoustic Sound Power (dB [re 1E-12] watts) < 78 dB up to 80.6° F (27° C)

Temperature range

Relative humidity

• Operating: 41° to 104° F (5° to 40° C)

• Storage: –40° to 158° F (–40° to 70° C)

• Operating: 5% to 85%

• Storage: 5% to 95%

Operating altitude –197 to 13,123 ft (–60 to 4000 m)

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Unpacking and Preparing the Fan Assembly Module

Prerequisites

No prerequisites exist for this task.

Required Tools and Equipment

• Fan assembly module (UBR10-FAN-ASSY= or UBR10012-FAN-PLUS=)

• ESD-preventive wrist strap

Steps

To unpack the fan assembly module:

Step 1 Open the shipping carton by cutting the packing tape along the flaps on the top of the box.
Step 2 Lift off the top layer of packaging to expose the module.

Preparing to Unpack the Fan Assembly Module

Step 3 Remove the fan assembly module from the box.
Step 4 Retain the packaging and the carton to return the module to the factory if it is found defective. For more

What to do next

information, see the “Obtaining Documentation and Submitting a Service Request” section on page 25.

After performing this step, install the Fan assembly modules, see “Install the Fan Assembly Module”

section on page 14.

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Installing the Fan Assembly Modules in the Chassis

Installing the Fan Assembly Modules in the Chassis

This procedure is applicable to both the fan assembly modules (UBR10-FAN-ASSY= and
UBR10012-FAN-PLUS=).

Install the Fan Assembly Module

Prerequisites

• If you are installing the fan module (UBR10012-FAN-PLUS=, Spare) in an existing

Cisco uBR10012 router chassis, ensure that the PRODUCT ID LED/switch activation status is in
accordance with the Cisco IOS Release running on the chassis (see Ta b l e 2 for details).

• The UBR10012-FAN-PLUS= fan assembly module is preinstalled with EMI gaskets (see Figure 4).

If you are installing the fan module (UBR10012-FAN-PLUS=, Spare) in an existing
Cisco uBR10012 router chassis, ensure that the EMI gaskets on the Cisco uBR10012 router chassis
(if present) are removed before mounting the fan assembly module.

Figure 4 EMI Gasket Location on UBR10012-FAN-PLUS= Fan Assembly Module

1

1

1 EMI gaskets across the top and bottom flanges

of the fan assembly module

—

246185

Caution Do not remove the required EMI gaskets on the UBR10012-FAN-PLUS= fan assembly module (see

Figure 4).

The EMI gaskets present on the Cisco uBR10012 router chassis are used with the UBR10-FAN-ASSY=
fan assembly module (see Figure 5). For information about installing EMI gaskets, see Installing EMI

Gaskets and RF Absorber Material on the Cisco uBR10012 Universal Broadband Router.

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Installing the Fan Assembly Modules in the Chassis

121960

1

1

Figure 5 EMI Gasket Location on the Cisco uBR10012 Router

1 EMI gaskets on either side on the fan

assembly on the Cisco uBR10012 router
chassis.

Required Tools and Equipment

• Flat-head screw driver

• Fan assembly module (UBR10-FAN-ASSY= or UBR10012-FAN-PLUS=)

Steps

To install a fan assembly module into the Cisco uBR10012 router:

Step 1 Remove the front cover by pulling the cover towards you.
Step 2 If you are installing the fan module (UBR10012-FAN-PLUS=), ensure that the Cisco IOS Release

running on the Cisco uBR10012 router supports the PRODUCT ID LED/switch feature.

Step 3 Using both hands, align the fan assembly module in the chassis, and push it back firmly. Make sure that

the connectors on the fan assembly securely connect to the backplane.

Step 4 Tighten the captive screws on each side of the fan assembly module.

Note To tighten the captive screws on the fan assembly modules, the installation torque used should be

8in-lbs.

—

Step 5 Check if the fans start working and ensure that air is blowing from the fans.
Step 6 Verify that the FAN OK LED is illuminated (green). If the FAN OK LED is not illuminated or if the fan

failure (SINGLE FAN FAIL or MULTI FAN FAIL) LEDs are illuminated (yellow), try reseating the fan
assembly module, see “Troubleshooting the Fan Assembly” section on page 23.

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Removing and Replacing the Fan Assembly Module

Step 7 If you are running a Cisco IOS Release that supports the PRODCUT ID LED/switch feature on the fan

module (UBR10012-FAN-PLUS=), verify that the PRODUCT ID LED/switch illuminates (green).

Note If you are using the fan module (UBR10012-FAN-PLUS=), and running a Cisco IOS Release that does

not support the PRODUCT ID LED feature, ensure that the PRODUCT ID LED/switch is not
illuminated. For information on Cisco IOS Releases that support the PRODUCT ID LED/switch feature,
see Cisco uBR10012 Router Release Notes for Cisco IOS Release 12.2(33)SCE. If you are using a
supported Cisco IOS release, the software may not identify the fan assembly as UBR10012-FAN-PLUS.
If this occurs, ensure that the PRODUCT ID LED/switch is illuminated and then either reload the
software, or physically remove the fan assembly module for at least 1 minute and then reinsert it. For
more information, see “Troubleshooting the Fan Assembly” section on page 23.

Step 8 Replace the front cover.

a. Slide the cover onto the four corner posts of the chassis.
b. Push down so that the posts are seated in the grooves above the cover holes.

Removing and Replacing the Fan Assembly Module

Caution Do not run the Cisco uBR10012 chassis without a working fan assembly module for more than three

minutes. To prevent the possibility of the system overheating, be sure that the replacement fan
assembly module is out of its box and packaging, so it is ready to install as soon as the defective
module is removed.

Caution The total service window for removal and replacement of the fan assembly module is three minutes

before possible system shutdown. Ensure that you complete the replacement procedure within this time
limit.

Note The fan assembly module supports hot-swapping and can be replaced without interrupting system

operation.

This section represents the following topics:

• Removing the Fan Assembly Module, page 17

• Removing the Fan Assembly Cable, page 19

• Replacing the Fan Assembly Cable, page 22

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Removing the Fan Assembly Module

This procedure is applicable to both fan assembly modules (UBR10-FAN-ASSY= and
UBR10012-FAN-PLUS=).

Note The fan assembly module does not need to be replaced when it is operating normally. If a failure

(SINGLE FAN FAIL or MULTI FAN FAIL) LED illuminates (yellow), use the following procedure to
remove and reinsert the fan assembly module to test the connection. If the failure (SINGLE FAN FAIL
or MULTI FAN FAIL) LED still illuminates (yellow) after removing and reinserting the module, use the
following procedure to replace the fan assembly module.

Prerequisites

• Ensure that the PRODUCT ID LED/switch on the UBR10012-FAN-PLUS= fan assembly module is

illuminated or not illuminated before removing and replacing the fan assembly module. Tabl e 2
provides information on the PRODUCT ID LED/switch activation status and compatibility with the
Cisco IOS Release.

Removing and Replacing the Fan Assembly Module

Required Tools and Equipment

• Flat-head screwdriver

• Replacement fan assembly module (UBR10-FAN-ASSY= or UBR10012-FAN-PLUS=)

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249857

POWER
MISWIRE
FAULT

ALARMS

CISCO
10000

FAIL

PERFORMANCE ROUTING ENGINE

CONSOLE

STATUS

ACO

CRITICAL

MINOR

MAJOR

ETHERNET

LINK

ACTIVITY

AUX

SLOT 0

SLOT 1

ALARMS

CISCO

10000

FAIL

PERFORMANCE ROUTING ENGINE

CONSOLE

STATUS

ACO

CRITICAL

MINOR

MAJOR

ETHERNET

LINK

ACTIVITY

AUX

SLOT 0

SLOT 1

IPSUM

IPSUM SANCT

IPSU SA TUS

POWER
MISWIRE
FAULT

POWERPOWER
MISWIREMISWIRE
FAULTF

AUL

T

POWERPOWER
MISWIREMISWIRE
FAULTF

AUL

T

POWER
MISWIRE
FAULT

POWER
MISWIRE
FAULT

MULTI F

AN FAIL

SING

LE FAN FAIL

FAN OK

Steps

Note In this section, the UBR10012-FAN-PLUS= fan assembly module is depicted in the illustrations

Figure 6 and Figure 7.

To remove the fan assembly module from the Cisco uBR10012 router:

Step 1 Remove the front cover by lifting it up slightly, and then pulling it towards you (see Figure 6).

Figure 6 Removing the Front Cover

Step 2

Step 3 Loosen the captive screws on each side of the fan assembly module and pull the module out of the chassis

Verify the status of the PRODUCT ID LED/switch on the UBR10012-FAN-PLUS= fan assembly module
before removing the module from the chassis (see Tab le 2).

(see Figure 7).

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Figure 7 Locations of Screws

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Step 4 Pull the fan module out of the router chassis.

Caution The fan assembly module weighs approximately 30 pounds. Use one hand to pull the fan assembly

module using its handle and position the other hand underneath the module to support it, so that it does
not suddenly swing down when it clears the chassis.

What to do next

After performing this task, install the fan assembly module, see “Install the Fan Assembly Module”

section on page 14. If you are also removing and replacing fan assembly cable, see the “Removing the
Fan Assembly Cable” section on page 19, and “Replacing the Fan Assembly Cable” section on page 22.

Removing the Fan Assembly Cable

This procedure is applicable to both the fan modules (UBR10-FAN-ASSY= and
UBR10012-FAN-PLUS=).

The fan assembly cable connects the fan assembly to the backplane. The cable is located inside the
chassis, underneath the fan assembly. Normally, the cable is not removed when a fan assembly module
is removed from the chassis (see Figure 8).

Note The cable has different connectors on each end.

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62338

Male connector Female connector

Figure 8 Fan Cable

Prerequisites

No prerequisites exist for this task.

Required Tools and Equipment

Wire cutters to cut the cable tie wraps.

Steps

To remove the fan assembly cable:

Step 1 Remove the front cover by lifting it up slightly, and then pulling it towards you.
Step 2 Remove the fan assembly (see“Removing the Fan Assembly Module” section on page 17).
Step 3 Reach into the chassis and cut the tie-wrap to free the cable.

Note Ensure that you make notes of the securing points of the tie wrap before you remove them. The

tie wrap securing points are required while replacing the fan cable.

Step 4 Disconnect the cable from the rear bracket (see Figure 9).

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Figure 9 Location of Fan Cable Inside the Chassis

62337

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LINK

ACTIVITY

AUX

CISCO
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ETHERNET

LINK

ACTIVITY

AUX

Removing and Replacing the Fan Assembly Module

Note The fan assembly cable has two “U” shaped bends that allow the cable to curve back into the brackets

Step 5 Push the tabs on the bracket open.
Step 6 Disconnect the cable from the front connector and remove the cable from the chassis.

What to do next

and fit snugly on the bottom of the fan module enclosure. (See Figure 9.)

After performing this task, replace the fan assembly cable, see “Replacing the Fan Assembly Cable”

section on page 22.

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Replacing the Fan Assembly Cable

This procedure is applicable to both the fan modules (UBR10-FAN-ASSY= and
UBR10012-FAN-PLUS=).

Prerequisites

Replacing a fan cable requires removing the cooling facilities of the chassis. It is not necessary to remove
power from the chassis for this procedure. However, because you are shutting down the fans that cool
the chassis and boards, it is important to have the new cable ready for immediate installation.

Required Tools and Equipment

Replacement fan cable (UBR10-FAN-CAB=)

Steps

Step 1 Verify which connector goes in the bracket in the back of the chassis and which connector goes into the

front connector.

Step 2 Bend the cable in a “U” shape at both ends, to facilitate getting the cable into the rear bracket. (See

Figure 9.)

Tip Use the existing cable as a template.

Step 3 Install the cable in the rear bracket.
Step 4 Make sure that the cable lays flat on the enclosure bottom so as not to restrict the movement of the fan

assembly cable as it is pushed back into the chassis.

Step 5 Connect the cable with the front connector.
Step 6 Ensure that you secure the cable using the tie wrap exactly as the previous cable was secured and route

the cable inside the fan assembly module.

Step 7 Slide the fan assembly module back into the chassis. The module should slide smoothly back into the

chassis without interference with the cable.

Tip If the fan assembly module does not slide easily into the chassis, remove the module and check

the location of the cable. The cable should lay flat along the bottom of the fan assembly
enclosure.

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Troubleshooting the Fan Assembly

Check the following to help isolate a problem with the cooling system:

• When you start up the system, do the fans start operating?

When the fans are operating, you should be able to hear them. You should also be able to feel air
being drawn in at the bottom front and expelled at the top rear of the chassis.

1. Check for fan failure by checking the fan status LEDs and running the show environment

command.

Router# show environment

Temperature normal: chassis inlet measured at 29C/84F
Temperature normal: chassis core measured at 42C/107F
Fan: OK
Power Entry Module 0 type DC status: OK
Power Entry Module 1 type DC status: OK
Router#

2. Ensure that no alarms are triggered on the fan assembly module.

3. Check if there is sufficient ventilation on the chassis intake and chassis exhaust.

4. Verify if the ambient temperature is within the specified range.

If the problem persists, see the “Obtaining Documentation and Submitting a Service Request”

section on page 25.

Troubleshooting the Fan Assembly

• Are the two LEDs —SINGLE FAN FAIL and MULTI FAN FAIL—illuminated (yellow)?

Remove the fan assembly module and reinsert it. If this does not help, examine the LED that is
illuminated, see “Table 1Fan Assembly LEDs and Their Function” section on page 3. Else see,

“Obtaining Documentation and Submitting a Service Request” section on page 25.

• Are the following messages displayed?

These messages indicate that the system has detected a critical over-temperature condition or
out-of-tolerance power inside the chassis.

Queued messages:

00:01:19:%ENVM-4-ENVWARN:+2.5 V measured at +2.59
00:01:19:%ENVM-4-ENVWARN:+5.15 V measured at +5.31

00:00:19:%ENVM-2-ENVCRIT:chassis core measured at 31C/87F
00:00:19:%ENVM-2-ENVCRIT:chassis inlet measured at 27C/80F
00:00:19:%ENVM-2-ENVCRIT:chassis outlet 1 measured at 30C/86F
00:00:19:%ENVM-2-ENVCRIT:chassis outlet 2 measured at 30C/86F

Although an over-temperature condition is unlikely at initial startup, ensure that heated exhaust air
from other equipment is not entering the inlet vent of the router and that there is sufficient clearance
around the sides of the chassis to allow cooling air to flow.

Note The message could also indicate a faulty component or temperature sensor. Use the show

environment or show environment table command to display the internal chassis environment.

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Related Documentation

• Is the PRODUCT ID LED/switch on fan assembly module illuminated (green) and a FAN-MISSING

alarm is randomly being triggered?

If you are running a Cisco IOS Release that does not support the PRODUCT ID LED/switch feature,
then ensure that the PRODUCT ID LED/switch is not pressed and is not illuminated. Upgrade to a
supported Cisco IOS Release on the chassis.

Note If you cannot upgrade to a supported Cisco IOS Release, then ensure that the PRODUCT ID

LED/switch is not pressed and not illuminated (green).

If you are running a Cisco IOS Release that supports this feature, but the FAN-MISSING alarm is
still being triggered, then follow the steps below to clear the alarm so that the software recognizes
the fan module:

1. Ensure that the PRODUCT ID LED/switch is pressed and illuminated (green).

2. Remove the fan assembly module.

3. Wait for 1 minute and reinsert the fan assembly module.

If the alarm is still being triggered, and the software still does not recognize the fan, then the fan
may be faulty, you may have to replace the fan module.

If none of the above solves the problem, see the “Obtaining Documentation and Submitting a

Service Request” section on page 25.

• If you experience trouble with the startup, and the issue is not resolved with these procedures,

manually power off the router and contact a service representative for assistance and further
instructions, see the “Obtaining Documentation and Submitting a Service Request” section on

page 25.

Related Documentation

Cisco uBR10012 Series Universal Broadband Router Quick Start Guide

http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/quick/start/10kqsg_2.html

Cisco uBR10012 Universal Broadband Router Hardware Installation Guide at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/hig/index.htm

Cisco uBR10012 Universal Broadband Router Software Configuration Guide at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr10k/ubr10012/scg/index.htm

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Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, submitting a service request, and gathering additional
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and
revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.

This document is to be used in conjunction with the documents listed in the “Related Documentation” section.

Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of
Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned 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. (1110R)

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.

© 2008-2011 Cisco Systems, Inc. All rights reserved.

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