Cisco 3800 Series User manual

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Introduction to Cisco 3800 Series Routers
Hardware Documentation
This introduction discusses the objectives, audience, and conventions of hardware documentation for
Cisco 3800 series integrated services routers, and describes related documents where you can find
additional information. It contains the following sections:
•Objectives and Organization, page 1
•Audience, page 2
•Conventions, page 2
•Safety Warnings, page 3
•Related Documentation, page 9
•Cisco 90-Day Limited Hardware Warranty Terms, page 10
•Obtaining Documentation, page 11
•Documentation Feedback, page 12
•Obtaining Technical Assistance, page 12
•Obtaining Additional Publications and Information, page 13
Objectives and Organization
This series of documents provides comprehensive hardware information for Cisco 3800 series integrated
services routers. It includes the following modules:
•Overview of Cisco 3800 Series Routers
•Preinstallation Requirements and Planning for Cisco 3800 Series Routers
•Installing Cisco 3800 Series Routers in an Equipment Rack
•Connecting Cables to Cisco 3800 Series Routers
•Powering Up Cisco 3800 Series Routers
•Troubleshooting Cisco 3800 Series Routers
•Installing Network Modules in Cisco 3800 Series Routers
•Installing Interface Cards in Cisco 3800 Series Routers
•Installing SFP Modules in Cisco 3800 Series Routers

Audience
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•Installing CompactFlash Memory Cards in Cisco 3800 Series Routers
•Installing and Upgrading Internal Components in Cisco 3800 Series Routers
For software configuration information, see the Cisco 3800 series software configuration documents and
the Cisco IOS configuration guides and command references. These publications are available online on
Cisco.com. See the “Obtaining Documentation” section on page 11 for more information.
For warranty, service, and support information, see the “Cisco 90-Day Limited Hardware Warranty
Terms” section on page 10.
These documents describe several router models that are similar in functionality, but differ in certain
respects. Some information may not apply to all router models.
Audience
These documents are intended for the person installing, configuring, and maintaining the router, who
should be familiar with electronic circuitry and wiring practices and have experience as an electronic or
electromechanical technician. Certain identified procedures should be performed only by trained and
qualified personnel.
Conventions
These documents use the conventions listed in Table 1.
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.
Timesaver Means the described action saves time. You can save time by performing the action described in the
paragraph.
Table 1 Document Conventions
Convention Description
boldface font Commands and keywords.
italic font Variables for which you supply values.
[ ] Optional keywords or arguments.
{x| y| z} A choice of required keywords. You must select exactly one.
screen font Information displayed on the screen.
boldface screen font Information you must enter.
< > Nonprinting characters, such as passwords, appear in angle brackets in contexts where italics are
not available.
[ ] Default responses to system prompts.

Safety Warnings
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Tip Means the following information will help you solve a problem. The tips information might not be
troubleshooting or even an action, but could be useful information, similar to a Timesaver.
Caution Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Safety Warnings
Safety warnings appear throughout these documents in procedures that, if performed incorrectly, may
harm you. A warning symbol precedes each warning statement. To see translations of the warnings that
appear in this publication, see the Cisco 3800 Series Routers Regulatory Compliance and Safety
Information document that accompanied your router.
Warning 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. Use the statement number provided at the end of
each warning to locate its translation in the translated safety warnings that accompanied this
device.
Statement 1071
SAVE THESE INSTRUCTIONS
Waarschuwing
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. Gebruik het nummer van de verklaring onderaan de
waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt
raadplegen.
BEWAAR DEZE INSTRUCTIES
Varoitus
TÄRKEITÄ TURVALLISUUSOHJEITA
Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin
käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu
onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen
mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien
lausuntonumeroiden avulla.
SÄILYTÄ NÄMÄ OHJEET

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Attention
IMPORTANTES INFORMATIONS DE SÉCURITÉ
Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant
entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez
conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures
couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des
avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil,
référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.
CONSERVEZ CES INFORMATIONS
Warnung
WICHTIGE SICHERHEITSHINWEISE
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen
führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen
und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder
Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten
Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.
BEWAHREN SIE DIESE HINWEISE GUT AUF.
Avvertenza
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.
Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le
traduzioni delle avvertenze riportate in questo documento.
CONSERVARE QUESTE ISTRUZIONI
Advarsel
VIKTIGE SIKKERHETSINSTRUKSJONER
Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du
begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med
elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten
av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne
enheten.
TA VARE PÅ DISSE INSTRUKSJONENE
Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de
lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos
perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de
prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para
localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.
GUARDE ESTAS INSTRUÇÕES

Safety Warnings
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¡Advertencia!
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. Al final de cada advertencia encontrará el
número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña
a este dispositivo.
GUARDE ESTAS INSTRUCCIONES
Varning!
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. Använd det nummer som finns i slutet av
varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna
anordning.
SPARA DESSA ANVISNINGAR

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Aviso
INSTRUÇÕES IMPORTANTES DE SEGURANÇA
Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões
corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os
circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o
número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de
segurança traduzidos que acompanham o dispositivo.
GUARDE ESTAS INSTRUÇÕES
Advarsel
VIGTIGE SIKKERHEDSANVISNINGER
Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for
legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de
involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til
undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de
oversatte advarsler, der fulgte med denne enhed.
GEM DISSE ANVISNINGER

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Safety Warnings
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Related Documentation
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Related Documentation
The Cisco IOS software that runs on your Cisco 3800 series router includes extensive features and
functionality. For information beyond the scope of these hardware documents, see the resources listed
in Table 2.
Timesaver Make sure that you have access to the documents listed in Table 2. These documents are available on
Cisco.com.
Cisco One-Year Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use
during the warranty period. Your formal Warranty Statement, including the warranties and license
agreements applicable to Cisco software, is available on Cisco.com at the following URL:
www.cisco.com/go/warranty.
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/en/US/support/
Ta b l e 2 Related and Referenced Documents
Cisco Product Document
Cisco 3800 series routers Cisco 3800 Series Integrated Services Routers Quick Start Guide
Cisco 3800 Series Software Configuration
Cisco 3800 Series Cards and Modules
Cisco 2800 Series and Cisco 3800 Series Integrated Services Routers
Regulatory Compliance and Safety Information
Overview of Cisco Network Modules for Cisco Access Routers
Cisco Network Modules Install and Upgrade Guides
Interface Cards for Cisco Access Routers
Installing Cisco Interface Cards in Cisco Access Routers
Cisco Modular Access Router Cable Specifications
Cisco RPS-675 Redundant Power System Hardware Installation Guide
Network management
system
Network management software documentation
Cisco IOS software Cisco IOS software documentation
Refer to documentation for the Cisco IOS software release installed on
your router.

Cisco 90-Day Limited Hardware Warranty Terms
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Cisco 90-Day Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use
during the warranty period. Your formal Warranty Statement, including the warranties and license
agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and
download the Cisco Information Packet and your warranty and license agreements from Cisco.com.
1. Launch your browser, and go to this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm
The Warranties and License Agreements page appears.
2. To read the Cisco Information Packet, follow these steps:
a. Click the Information Packet Number field, and make sure that the part number
78-5235-03A0 is highlighted.
b. Select the language in which you would like to read the document.
c. Click Go.
The Cisco Limited Warranty and Software License page from the Information Packet appears.
d. Read the document online, or click the PDF icon to download and print the document in Adobe
Portable Document Format (PDF).
Note You must have Adobe Acrobat Reader to view and print PDF files. You can download
the reader from Adobe’s website: http://www.adobe.com
3. To read translated and localized warranty information about your product, follow these steps:
a. Enter this part number in the Warranty Document Number field:
78-5236-01C0
b. Select the language in which you would like to read the document.
c. Click Go.
The Cisco warranty page appears.
d. Review the document online, or click the PDF icon to download and print the document in
Adobe Portable Document Format (PDF).
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/public/Support_root.shtml.
Duration of Hardware Warranty
Ninety (90) days.
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten
(10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery
times can vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.

Obtaining Documentation
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To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you purchased the product directly from
Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference:
Obtaining Documentation
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:
http://www.cisco.com/univercd/home/home.htm
You can access the Cisco website at this URL:
http://www.cisco.com
You can access international Cisco websites at this URL:
http://www.cisco.com/public/countries_languages.shtml
Ordering Documentation
You can find instructions for ordering documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm
You can order Cisco documentation in these ways:
•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from
the Ordering tool:
http://www.cisco.com/en/US/partner/ordering/index.shtml
•Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in
North America, by calling 800 553-NETS (6387).
Company product purchased from
Company telephone number
Product model number
Product serial number
Maintenance contract number

Documentation Feedback
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Documentation Feedback
You can send comments about technical documentation to bu[email protected].
You can submit comments by using the response card (if present) 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
For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco
Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical
Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical
Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service
contract, contact your reseller.
Cisco Technical Support Website
The Cisco Technical Support 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,
365 days a year at this URL:
http://www.cisco.com/techsupport
Access to all tools on the Cisco Technical Support 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
Submitting a Service Request
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 automatically
provides recommended solutions. If your issue is not resolved using the recommended resources, your
service request will be assigned to a Cisco TAC 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 TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business
operations running smoothly.

Obtaining Additional Publications and Information
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To open a service request by telephone, use one of the following numbers:
Asia-Pacific: [phone] (Australia: 1 800 805 227)
EMEA: [phone]
USA: 1 800 553 2447
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.
Severity 1 (S1)—Your 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 operation 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.
Severity 3 (S3)—Operational performance of your network is impaired, but 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
and printed sources.
•Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise. Visit
Cisco Marketplace, the company store, at this URL:
http://www.cisco.com/go/marketplace/
•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://cisco.com/univercd/cc/td/doc/pcat/
•Cisco Press publishes a wide range of general networking, training and certification titles. Both new
and experienced users will benefit from these publications. For current Cisco Press titles and other
information, go to Cisco Press at this URL:
http://www.ciscopress.com
•Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and
networking investments. Each quarter, Packet delivers coverage of the latest industry trends,
technology breakthroughs, and Cisco products and solutions, as well as network deployment and
troubleshooting tips, configuration examples, customer case studies, certification and training
information, and links to scores of in-depth online resources. You can access Packet magazine at
this URL:
http://www.cisco.com/packet

Obtaining Additional Publications and Information
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•iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies
learn how they can use technology to increase revenue, streamline their business, and expand
services. The publication identifies the challenges facing these companies and the technologies to
help solve them, using real-world case studies and business strategies to help readers make sound
technology investment decisions. You can access iQ Magazine at this URL:
http://www.cisco.com/go/iqmagazine
•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
•World-class networking training is available from Cisco. You can view current offerings at
this URL:
http://www.cisco.com/en/US/learning/index.html
Copyright © 2004 Cisco Systems, Inc. All rights reserved.
CCVP, the Cisco Logo, and the Cisco Square Bridge logo are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a
service mark of Cisco Systems, Inc.; and Access Registrar, Aironet, BPX, Catalyst, CCDA, CCDP, CCIE, CCIP, CCNA, CCNP, CCSP, Cisco, the Cisco
Certified Internetwork Expert logo, Cisco IOS, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Cisco Unity,
Enterprise/Solver, EtherChannel, EtherFast, EtherSwitch, Fast Step, Follow Me Browsing, FormShare, GigaDrive, GigaStack, HomeLink, Interne
t
Quotient, IOS, iPhone, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard, iQuick Study, LightStream, Linksys, MeetingPlace, MGX,
Networking Academy, Network Registrar, Packet , PIX, ProConnect, RateMUX, ScriptShare, SlideCast, SMARTnet, StackWise, The Fastest Way to
Increase Your Internet Quotient, and TransPath are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain othe
r
countries.
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. (0612R)

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Overview of Cisco 3800 Series Routers
Cisco 3800 series integrated services routers are part of a new generation of routers that incorporate
high-performance integrated data, voice, video, and virtual private network (VPN) capability, including
hardware-based VPN encryption acceleration, in a modular design that provides the flexibility to
configure your router according to your needs. These routers provide built-in Gigabit Ethernet LAN
interface ports, and you can add a wide variety of LAN and WAN ports with interchangeable network
modules and interface cards. Cisco 3800 series routers are designed for branch office installations that
need integrated low-density switching, security, voice, IP telephony, video, content networking, and
concurrent applications.
This document describes the features and specifications of Cisco 3800 series routers, and includes the
following sections:
•Router Descriptions, page 1
•Product Identification, page 5
•Built-In Ports, page 6
•Module and Interface Card Capacity, page 7
•Port Numbering, page 9
•Memory, page 11
•Power, page 11
•LED Indicators, page 12
•Ventilation, page 12
•Real-Time Clock and Battery, page 12
•Technical Specifications, page 12
•Regulatory Compliance, page 15
Router Descriptions
There are two routers in the Cisco 3800 series—the Cisco 3825 router and the Cisco 3845 router. The
Cisco 3825 router (shown in Figure 1 to Figure 4) is two rack units (3.5 inches) high. The Cisco 3845
router (shown in Figure 5 to Figure 8) is three rack units (5.25 inches) high.

Router Descriptions
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Figure 1 Front View of Cisco 3825 Router
Figure 2 Front Panel of Cisco 3825 Router
Figure 3 Rear View of Cisco 3825 Router
1Cisco Redundant Power System (RPS) connector 4LED indicators
2CompactFlash memory card slot 5Power switch
3USB ports 6Power connector (AC shown)
117040
0
1
COMPACT FLASH
SYSAUXACTRPSIP PWRAIM0AIM1PVDM0PVDM1PVDM2PVDM3
R
116841
100-240 V~ 3A
50/60 Hz
1
0SYS ACT SYS
PWR RPS AUX
PWR AIM0 AIM1 PVDM0 PVDM1 PVDM2 PVDM3
43 51 6
CF
COMPACT FLASH
DO NOT REMOVE DURING NETWORK OPERATION
2
122285
EN
NMD-
ESW-
36
23x 5x
FastEthernetPorts
22x 4x 21x 3x 20x 2x 19x 1x 18x 0x
29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x
35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x
Ext
Pwr
-48V
0x
18x
GE0
10/100/
1000
Base-Tx
35x
10/100/1000
Base-Tx
GE1
17x
EN
NM-
ESW-
16
15x 7x 14x 6x 13x 5x
FastEthernetPorts
12x 4x 11x 3x 10x 2x 9x 1x 8x 0x
Ext
Pwr
-48V
0x
8x
7x
15x
GE
10/100/
1000
Base-Tx

Router Descriptions
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Figure 4 Rear Panel of Cisco 3825 Router
Figure 5 Front View of Cisco 3845 Router
1Network module slot 2 6HWIC slot 2
2Screw holes for grounding lug 7HWIC slot 0
3Network module slot 1 8Console and auxiliary ports
4HWIC slot 3 9Gigabit Ethernet ports
5HWIC slot 1 10 Slot for optional SFP module
AUX
CONSOLE
AUX
GE 0/1
SPD LNK
SPD LNK
GE 0/0
H
W
I
C
2
H
W
I
C
0
1
2
H
W
I
C
3
H
W
I
C
1SFP
2
987654
EN
NM-
ESW-
16
15x 7x 14x 6x 13x 5x
FastEthernet Ports
12x 4x 11x 3x 10x 2x 9x 1x 8x 0x
Ext
Pwr
-48V
0x
8x
7x
15x
GE
10/100/
1000
Base-Tx
3
116842
Cisco 3825
EN
NMD-
ESW-
36
23x 5x
FastEthernet Ports
22x 4x 21x 3x 20x 2x 19x 1x 18x 0x29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x
Ext
Pwr
-48V
0x
18x
GE0
10/100/
1000
Base-Tx
35x
10/100/1000
Base-Tx
GE1
17x
1
10
117045

Router Descriptions
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Figure 6 Front Panel of Cisco 3845 Router
Figure 7 Rear View of Cisco 3845 Router
1LED indicators 3Power connector (AC shown)
2Power switch 4Location of optional second power supply
116843
1
2 3 4
117774

Product Identification
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Figure 8 Rear Panel of Cisco 3845 Router
Product Identification
The serial number for Cisco 3800 series routers is located near the right edge of the rear panel. Figure 9
shows the location on Cisco 3825 routers. Figure 10 shows the location on Cisco 3845 routers.
Figure 9 Cisco 3825 Router Serial Number Location
1USB ports 8Gigabit Ethernet ports
2Console and auxiliary ports 9Slot for optional SFP module
3HWIC slot 3 10 Network module slot 4
4HWIC slot 2 11 Network module slot 2
5HWIC slot 1 12 Network module slot 3
6LED indicators 13 Network module slot 1
7HWIC slot 0 14 Screw holes for grounding lug
116844
CONSOLE
HWIC 3
CF
AIM 1
PVDM 3 AIM 0
SFP
GE 0/0
GE 0/1
PVDM 0PVDM 1
PVDM 2
SPD
SPD
LNK
LNK
HWIC 2
HWIC 1 HWIC 0
Do Not Remove During Network Operation
AUX
CISCO3845
1
0
4
2
1
3
8 9
14
13121110
1 2 3 4 15 5 7
6
EN
NMD-
ESW-
36
23x 5x
FastEthernetPorts
22x 4x 21x 3x 20x 2x 19x 1x 18x 0x
29x 11x 28x 10x 27x 9x 26x 8x 25x 17 24x 6x
35x 17x 34x 16x 33x 15x 32x 14x 31x 13x 30x 12x
Ext
Pwr
-48V
0x
18x
GE0
10/100/
1000
Base-Tx
35x
10/100/1000
Base-Tx
GE1
17x
EN
NM-
ESW-
16
15x 7x 14x 6x 13x 5x
FastEthernetPorts
12x 4x 11x 3x 10x 2x 9x 1x 8x 0x
Ext
Pwr
-48V
0x
8x
7x
15x
GE
10/100/
1000
Base-Tx
SN: XXXNNNNXXXX
SN: XXXNNNNXXXX
121294 781-00282-01 C0

Built-In Ports
6
Overview of Cisco 3800 Series Routers
OL-5966-01
Figure 10 Cisco 3845 Router Serial Number Location
Note The serial number for Cisco 3825 and Cisco 3845 routers is 11 characters long.
Cisco Product Identification Tool
The Cisco Product Identification tool provides detailed illustrations and descriptions showing where to
locate serial number labels on Cisco products. It includes the following features:
•A search option that allows browsing for models using a tree-structured product hierarchy
•A search field on the final results page making it easier to look up multiple products
•End-of-sale products are clearly identified in results lists
The tool streamlines the process of locating serial number labels and identifying products. Serial number
information expedites the entitlement process and is important for access to support services.
The Cisco Product Identification tool can be accessed at the following URL:
http://tools.cisco.com/Support/CPI/index.do
Built-In Ports
Cisco 3800 series routers provide the following built-in ports:
•Two 1000BASE-T Gigabit Ethernet ports with RJ-45 connectors for shielded twisted pair. One of
these ports provides a slot for an optional small-form-factor pluggable (SFP) module.
•One RJ-45 console port for connecting to a terminal.
•One RJ-45 auxiliary port for connecting to a modem.
•Two built-in USB 1.1 ports to support USB devices qualified and approved by Cisco. No approved
USB devices are currently available, but enhancements are planned to provide additional flexibility
and functionality.
•Cisco Redundant Power System connector (Cisco 3825 router only).
EN
NM-
ESW-
16
15x 7x 14x 6x 13x 5x
FastEthernet Ports
12x 4x 11x 3x 10x 2x 9x 1x 8x 0x
Ext
Pwr
-48V
0x
8x
7x
15x
GE
10/100/
1000
Base-Tx
SN: XXXNNNNXXXX
SN: XXXNNNNXXXX
121293
, 781-00283-01 B0