Cisco Systems MWR 1900 User Manual
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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Text Part Number: 78-13982-02
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OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following inform ation is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required
to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency energy. If it is not
installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment has been tested and found to
comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These specifications are designed to provide reasonable
protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital
devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television
communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco equipment or one of its
peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits
controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
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All other trademarks mentioned in this document or Web site 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. (0203R)
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
Copyright © 2002 Cisco Systems, Inc.
All rights reserved.
About This Guide v
Objectives v
Audience v
Organization v
Conventions vi
Obtaining Documentation viii
World Wide Web viii
Ordering Documentation ix
Documentation Feedback ix
Obtaining Technical Assistance ix
Cisco.com ix
Technical Assistance Center x
CONTENTS
CHAPTER
CHAPTER
1 Overview of the Cisco MWR 1900 Router 1-1
Primary Use of the MWR 1900 1-1
Hardware Features 1-2
Fast Ethernet Interfaces 1-4
Voice/WAN Interface Cards 1-4
Compact Flash 1-5
Overview of Cisco MWR 1900 Power Supplies 1-5
Environmental Monitoring Temperature Sensor 1-6
System Specifications 1-6
Regulatory Compliance 1-6
2 Preparing to Install the Router 2-1
Safety Recommendations 2-1
Safety with Electricity 2-2
General Site Requirements 2-3
Required Tools and Equipment for Installation and Maintenance 2-3
Inspecting the Router 2-4
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Creating a Site Log 2-4
Installation Checklist 2-5
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Contents
Console and Auxiliary Port Considerations 2-6
Console Port Connections 2-6
Auxiliary Port Connections 2-6
CHAPTER
3 Installing the Router 3-1
Rack Mounting the Chassis 3-1
Attaching the Brackets 3-2
Installing the Router in the Rack 3-2
Installing a T1/E1 Multiflex VWIC 3-2
Connecting the Console Terminal and Modem 3-2
Identifying a Rollover Cable 3-3
Console Port 3-3
Auxiliary Port 3-4
Connecting the Network Cables 3-4
Connecting the FE Interface Cables 3-4
Connecting the VWIC Interface Cables 3-5
Connecting the MWR 1900 Router to a DC-Input Power Supply 3-7
Required Tools and Equipment 3-7
Grounding the Router 3-8
Wiring the DC-Input Power Source 3-9
Powering On the Router 3-9
APPENDIX
INDEX
iv
Replacing or Upgrading the CF 3-10
Removing a CF Memory Card from an External Slot 3-11
Installing a CF Memory Card in an External Slot 3-11
Formatting Procedures for CF Memory Cards 3-12
File and Directory Procedures 3-12
What to Do After Installing the Hardware 3-16
A Troubleshooting A-1
Problem Solving A-1
Troubleshooting the Power and Cooling Systems A-2
Environmental Reporting Features A-2
Troubleshooting Modules, Cables, and Connections A-3
Reading the LEDs A-3
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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Objectives
Audience
About This Guide
This preface discusses the objectives, audience, organization, and conventions of this hardware
installation guide.
This guide explains how to install, maintain, and troubleshoot your router hardware.
Although this guide provides minimum software configuration information, it is not comprehensive. For
detailed software configuration information, see the Cisco IOS configuration guide and command
reference publications. (See “Obtaining Documentation” for more information.)
This guide describes several router models that are similar in functionality, but differ in the number of
interfaces supported. Some information provided may not apply to your particular router model.
Warranty, service, and support information is in the Cisco Information Packet that shipped with the
router.
This guide is designed for the person installing, configuring, and maintaining the router, who should be
familiar with electronic circuitry and wiring practices and has experience as an electronic or
electromechanical technician. It identifies certain procedures that should be performed only by trained
and qualified personnel.
Organization
The major sections of this hardware installation guide are:
Chapter Title Description
Chapter 1 Overview of the Cisco MWR
Chapter 2 Preparing to Install the Router Describes safety recommendations, site requirements,
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1900 Router
Discusses the hardware features and specifications of
the routers.
network connection considerations, required tools and
equipment, and includes the installation checklist.
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
v
About This Guide
Conventions
Chapter Title Description
Chapter 3 Installing the Router Includes router installation information, and shows
how to connect to the router console, auxiliary, and
network ports.
Appendix A Troubleshooting Describes how to isolate problems, read LEDs,
interpret error and status messages, recover an enable
password, and recover software images.
Conventions
This guide uses the following conventions to convey instructions and information:
Table 1 Document Conventions
Convention Description
boldface font Commands and keywords.
italic font Variables for which you supply values.
[ ] Keywords or arguments that appear within square brackets are optional.
{x | y | z} A choice of required keywords appears in braces separated by vertical bars. You must select one.
screen font
boldface screen
font
< > Nonprinting characters, for example passwords, appear in angle brackets.
[ ] Default responses to system prompts appear in square brackets.
Examples of information displayed on the screen.
Examples of information you must enter.
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.
Tip s 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.
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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About This Guide
Conventions
Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may
harm you. A warning symbol precedes each warning statement.
Warning
Waarschuwing
Varoitu s
Attention
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
Compliance and Safety Information
document that accompanied this device.
Regulatory
Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk
letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich
bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de
hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor
vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het
document
Regulatory Compliance and Safety Information
(Informatie over naleving van
veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.
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).
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
Avvertenza
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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.
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
Information
(Conformità alle norme e informazioni sulla sicurezza) che accompagna
Regulatory Compliance and Safety
questo dispositivo.
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
vii
Obtaining Documentation
About This Guide
Advarsel
Aviso
¡Advertencia!
Varning
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 oversettelser av deadvarslene
som finnes i denne publikasjonen, kan du se i dokumentet
Safety Information
levert med denne enheten.
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
Safety Information
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 una traducción de las advertencias que aparecen en esta
publicación, consultar el documento titulado
Information
reglamentarias) 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 varamedveten 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
säkerhetsinformation), vilket medföljer denna anordning.
(Overholdelse av forskrifter og sikkerhetsinformasjon) som ble
(Informação de Segurança e Disposições Reguladoras) que
Regulatory Compliance and Safety
(Información sobre seguridad y conformidad con las disposiciones
(Efterrättelse av föreskrifter och
Regulatory Compliance and
Regulatory Compliance and
Obtaining Documentation
The following sections provide sources for obtaining documentation from Cisco Systems.
World Wide Web
You can access the most current Cisco documentation on the World Wide Web at the following sites:
• http://www.cisco.com
• http://www-china.cisco.com
• http://www-europe.cisco.com
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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About This Guide
Ordering Documentation
Cisco documentation is available in the following ways:
• Registered Cisco Direct Customers can order Cisco Product documentation from the Networking
Products MarketPlace:
http://www.cisco.com/cgi-bin/order/order_root.pl
• Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription
Store:
http://www.cisco.com/go/subscription
• Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by
calling 800 553-NETS(6387).
Documentation Feedback
If you are reading Cisco product documentation on the World Wide Web, you can submit technical
comments electronically. Click Feedback in the toolbar and select Documentation. After you complete
the form, click Submit to send it to Cisco.
Obtaining Technical Assistance
You can e-mail your comments to bug-doc@cisco.com.
To submit your comments by mail, use the response card behind the front cover of your document, or
write to the following address:
Attn Document Resource Connection
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.
Obtaining Technical Assistance
Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com
registered users, additional troubleshooting tools are available from the TAC website.
Cisco.com
Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open
access to Cisco information and resources at anytime, from anywhere in the world. This highly
integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.
Cisco.com provides a broad range of features and services to help customers and partners streamline
business processes and improve productivity. Through Cisco.com, you can find information about Cisco
and our networking solutions, services, and programs. In addition, you can resolve technical issues with
online technical support, download and test software packages, and order Cisco learning materials and
merchandise. Valuable online skill assessment, training, and certification programs are also available.
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Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
ix
Obtaining Technical Assistance
Customers and partners can self-register on Cisco.com to obtain additional personalized information and
services. Registered users can order products, check on the status of an order, access technical support,
and view benefits specific to their relationships with Cisco.
To access Cisco.com, go to the following website:
http://www.cisco.com
Technical Assistance Center
The Cisco TAC website is available to all customers who need technical assistance with a Cisco product
or technology that is under warranty or covered by a maintenance contract.
Contacting TAC by Using the Cisco TAC Website
If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC
website:
http://www.cisco.com/tac
P3 and P4 level problems are defined as follows:
About This Guide
• P3—Your network performance is degraded. Network functionality is noticeably impaired, but most
business operations continue.
• P4—You need information or assistance on Cisco product capabilities, product installation, or basic
product configuration.
In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.
To register for Cisco.com, go to the following website:
http://www.cisco.com/register/
If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users
can open a case online by using the TAC Case Open tool at the following website:
http://www.cisco.com/tac/caseopen
Contacting TAC by Telephone
If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and
immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following
website:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml
P1 and P2 level problems are defined as follows:
• P1—Your production network is down, causing a critical impact to business operations if service is
not restored quickly. No workaround is available.
• P2—Your production network is severely degraded, affecting significant aspects of your business
operations. No workaround is available.
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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CHAPTER
1
Overview of the Cisco MWR 1900 Router
The MWR 1900 Mobile Wireless Edge Router is a networking platform optimized for use in mobile
wireless networks. It extends IP connectivity to the cell site and Base Transceiver Station (BTS), and
through a Fast Ethernet interface to the BTS, provides bandwidth-efficient IP transport of voice and data
bearer traffic, as well as maintenance, control, and signalling traffic, over the leased line backhaul
network between the BTS and leased line termination and aggregation node via compression
(cRTP/cUDP) and packet multiplexing (PPPmux and MLPPP). It supports a limited set of interfaces and
protocols, but offers high performance at a low cost while meeting the critical requirements for
deployment in cell sites, including small size, extended operating temperature range, high availability,
and DC input power flexibility.
This chapter includes the following sections:
• Primary Use of the MWR 1900, page 1-1
• Hardware Features, page 1-2
• Fast Ethernet Interfaces, page 1-4
• Voice/WAN Interface Cards, page 1-4
• Compact Flash, page 1-5
• Compact Flash, page 1-5
• Environmental Monitoring Temperature Sensor, page 1-6
• System Specifications, page 1-6
• Regulatory Compliance, page 1-6
Primary Use of the MWR 1900
The MWR 1900 router is designed to be used at a cell site as part of an IP-RAN solution. Figure 1-1
shows the placement of and connections for the MWR 1900 router for this application.
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Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
1-1
Hardware Features
Chapter 1 Overview of the Cisco MWR 1900 Router
Figure 1-1 MWR 1900 in an IP-RAN Solution
In the IP-RAN solution, the BTS site consists of a pair of MWR 1900 routers. The pair of MWR 1900
routers provides for an active and standby router for redundancy. A failure of the active MWR 1900
router causes the standby router to take over as the active router for the BTS site.
Each pair of MWR 1900 routers at the BTS site is identical in hardware configuration. They connect to
each other through the BTS via the Fast Ethernet interfaces. The individual backhaul links to an MWR
1900 router are cabled from a single T1/E1 termination block in the BTS, connecting to both the active
and standby routers utilizing a “Y” cable. The redundancy design to control the active/standby
transitions of the router pair leverages HSRP to control the relays on the VWIC-2MFT-T1-DIR (or
VWIC-2MFT-E1-DIR) in each router to ensure that the relays on the active router are closed and the
relays on the standby router are open to avoid double termination of the T1 (or E1).
Hardware Features
100BaseT
pBTS
Active
Standby
MWR 1900 IP BTS router pair
T1/E1 backhaul link to
IP RAN aggregation node
65827
Figure 1-2 shows the front of the router. Figure 1-3 shows the back of the router.
1-2
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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Chapter 1 Overview of the Cisco MWR 1900 Router
Figure 1-2 Front Panel of the Cisco MWR 1900 Router
VWIC LEDs:
Alarm (A)
Fast
ethernet
Loopback (A)
Carrier detect (G)
LEDs:
Activity (G)
Speed (G)
Link (G)
VWIC
position 2
S
E
E
M
A
N
U
A
L
B
E
Network module
slot
2 FE
ports
Compact
flash slot
VWIC
position 1
2 ports
F
O
R
E
IN
S
T
A
L
L
A
T
I
O
position 0
D
S
U
5
6
K
N
Console
VWIC
2 ports
S
E
E
M
A
N
U
A
L
C
O
N
S
O
L
E
A
port
B
E
F
O
R
E
IN
S
T
A
L
L
A
U
X
IL
IA
R
Y
T
IO
N
Auxiliary
port
Hardware Features
VWIC LEDs:
Alarm (A)
Loopback (A)
Carrier detect (G)
Air vent (both sides)
Power (G)
Status (G) Chassis LEDs
Activity (G)
65783
Figure 1-3 Back Panel of the Cisco MWR 1900 Router
Rack mount bracket
(both sides)
Grounding
nut/screw
Power
connector
The Cisco MWR 1900 router includes the following features:
• Two DIMM-168 SDRAM (4 banks) sockets
• SysAD bus speed and SDRAM local bus speed is 80Mhz
• External Compact Flash (CF)
65784
Fan
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• Two fixed LAN 10/100 Base-T Ethernet Ports
• Three modular WIC/VIC expansion slots (1 for future use)
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
1-3
Fast Ethernet Interfaces
• Redundancy support via a two T1/E1 WIC capable of port switching ON/OFF via relays
• Console RS-232 port
• Auxiliary Serial Port with hardware flow control
• Extended operational temperature range from -10ºC to + 55ºC with over-temperature sensor
• Front (connector side) to rear airflow using four 40mm, 10 CFM exhaust fans
• Custom +27V DC input power
• Three green chassis LEDs for Power (PS is operational), System Ready (software is up and running),
and Activity (interrupts/packet transfers running)
• One Network Module slot (for future use)
Fast Ethernet Interfaces
The MWR 1900 router has two fixed LAN ports offering 10/100 Base-T Ethernet attachment. The ports
are fully compliant with the IEEE 802.3 and 802.3U standards and integrate the media access control
(MAC) functions and a dual-speed MII interface. Both ports can operate in half- or full-duplex mode and
can run independently of one another. For each FE interface, there are two green LEDs, one for Link
Integrity and one for Link Activity.
Chapter 1 Overview of the Cisco MWR 1900 Router
Voice/WAN Interface Cards
The Cisco VWIC-2MFT-T1-DIR and VWIC-2MFT-E1-DIR Voice/WAN Interface Cards support data
applications on the Cisco MWR 1900 Mobile Wireless Edge Router for T1/E1 networks. These cards are
dual-port, T1/Fractional T1 or E1/Fractional E1, Drop and Insert Multiplexers with integrated T1
CSU/DSUs or E1 DSUs. The T1 version supports framed and unframed traffic, and the E1 version
supports framed traffic and unframed traffic that conforms to the ITU-T G.703 standard for full 2.048
Mbps bandwidth.
The Drop and Insert multiplexer diverts (drops) streams of an aggregate Time Division Multiplexed
(TDM) traffic stream, and introduces (inserts) different streams for transmission in the time slots that
were previously occupied by the dropped streams. Each VWIC supports a limited channelized capability
where the T1 or E1 can be flexibly split into two fractional channel groups, one on each port or two on
one port. The switching operation can be maintained through router restarts and reloads of Cisco IOS
software.
Each card also features protection switch solid state relays on the line interfaces, which together with
redundancy logic and relay control added to the base Cisco IOS feature set on the MWR 1900, provides
T1/E1 Protection Switching between redundant routers.
The MWR 1900 router provides two WAN interface slots, which allows support for 4 T1/E1s. A third
WAN interface slot is reserved for future use.
Additional information is contained in separate publications that accompanied your router package.
• For information on Voice/WAN interface cards (VWICs), see the publication VWIC-2MFT-T1DIR,
VWIC-2MFT-E1DIR Installation Instructions.
1-4
• For software configuration information, see the publication Cisco MWR 1900 Software
Configuration Guide.
These manuals are on Cisco.com. See “Obtaining Documentation” for more information.
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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Chapter 1 Overview of the Cisco MWR 1900 Router
Compact Flash
One external Compact Flash (CF) device is used on the MWR 1900 router. The CF memory size can vary
with a minimum size of 32Mbyte and a maximum size of 128Mbytes. This device is configured in
memory mapped mode (PCMCIA) to allow for hot insertion. This device is required for the MWR 1900
router to function because the IOS image and troubleshooting logs reside on this device. For information
about replacing or upgrading the CF, see the “Replacing or Upgrading the CF” section on page 3-10.
Overview of Cisco MWR 1900 Power Supplies
The MWR 1900 router is equipped with a +27 VDC power supply. The +27 VDC is typically used for
cell base stations.
Table 1-1 lists DC power supply specifications of the Cisco MWR 1900 router.
Table 1-1 Cisco MWR 1900 Power Supply Specifications
Compact Flash
Specification
Input voltage, DC power supply
Maximum input current
Wire gauge for DC-input power
connections
Power Dissipation 44 W (typical)
Power Output 35 W (typical)
2
Only solid copper conductors shall be used for the DC input power connection.
The Cisco MWR 1900 router uses a small, three-wire connector for the power supply. The connector on
the Cisco MWR 1900 router is Phoenix Contact part number 1754452 and should mated with Phoenix
Contact part number 1754465, which is attached to the power cable.
Table 1-2 lists the pinout configuration for the connector for both power supplies.
Table 1-2 Power Supply Connectors Pinout
PIN
1 + 27 VDC
2 Ground
3RTN
2
+27 VDC Power Supply
+27 VDC
+ 20 to 32 VDC
2.2A
18 AWG
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Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
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