Cisco Systems 159330, 124792, 124778 User Manual
Cisco AC/DC Power System User Guide
Release 1.0
Last Updated: May 15, 2005
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Text Part Number: 78-16641-02
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL
STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT
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OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information 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 op erate the product.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public
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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. (0601R)
Cisco AC/DC Power System User Guide, Release 1.0
Copyright © 2004 Cisco Systems, Inc. All rights reserved.
About this Guide xi
Document Objectives xi
Audience xi
Document Organization xi
Document Conventions xii
Where to Find Safety and Warning Information xiii
Obtaining Documentation xiii
Cisco.com xiii
Ordering Documentation xiii
Documentation Feedback xiv
Obtaining Technical Assistance xiv
Cisco Technical Support Website xiv
Submitting a Service Request xv
Definitions of Service Request Severity xv
Obtaining Additional Publications and Information xvi
CONTENTS
CHAPTER
CHAPTER
1 Introduction 1-1
1.1 System Description 1-1
1.1.1 System Shelf 1-2
1.1.2 Rectifier Modules 1-3
1.1.3 GMT Fuses 1-4
1.1.4 1 RU Distribution Shelf 1-4
1.1.5 System Configurations 1-5
1.1.6 General Specifications 1-6
1.2 Safety Recommendations 1-8
1.2.1 Installation Warning 1-9
1.2.2 Operating Temperature Warnings 1-9
1.2.3 Electrical Safety Warnings 1-10
2 System Installation 2-1
2.1 Pre-Installation 2-1
2.1.1 Ground Symbol 2-1
2.1.2 Tools Required 2-1
2.1.3 Installation and Commissioning Checklist 2-2
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Contents
2.1.4 Installation Materials 2-2
2.2 Install AC/DC Power System Components 2-3
2.2.1 Install the System Shelf 2-4
2.2.2 Install the 1 RU Distribution Shelf 2-6
2.2.2.1 Install the Communications Cabling (Optional) 2-7
2.2.2.2 Install the DC Power Cabling (Optional) 2-8
2.2.3 Install the Ground Cable 2-9
2.2.3.1 Install the Cabinet/Rack Ground 2-10
2.2.3.2 Install the System Shelf Ground 2-10
2.2.3.3 Install the 1 RU Distribution Shelf Ground 2-11
2.3 Install AC Power Cables 2-12
2.3.1 Install the Rectifiers 2-16
2.4 Install Circuit Breakers 2-18
2.4.1 Install the Alarm Cable 2-21
2.5 Install Load-and-Return Connections 2-24
2.5.1 Install GMT Fuse Connections 2-25
2.5.2 Install 1 RU Distribution Shelf Load Connections 2-26
CHAPTER
CHAPTER
2.6 System Upgrades 2-28
2.6.1 GMT Fuses 2-28
2.6.2 Small to Medium System Upgrade 2-28
2.6.3 Medium to Large System Upgrade 2-29
2.6.4 Small to Large System Upgrade 2-29
3 Component Replacement 3-1
3.1 Safety 3-1
3.2 Component Replacement 3-1
3.2.1 Replace the 1 RU Distribution Shelf 3-1
3.2.2 Replace the Controller Tray 3-3
3.2.3 Replace Circuit Breakers 3-6
3.2.4 Replace a Rectifier 3-8
3.2.5 Replace GMT Fuses 3-10
4 System Operation 4-1
4.1 System Commissioning 4-1
4.2 General Information 4-1
4.2.1 Alarm Interface Board and Connections 4-2
4.2.2 Basic Controller Functions 4-2
4.2.2.1 Start the Controller 4-2
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4.2.2.2 Add Modules 4-2
4.2.2.3 Remove Modules 4-3
Contents
CHAPTER
CHAPTER
APPENDIX
5 System Troubleshooting 5-1
6 System Parts List 6-1
A Translated Safety Warnings A-1
Statement 12—Power Supply Disconnection Warning A-1
Statement 43—Jewelry Removal Warning A-3
Statement 1006—Chassis Warning for Rack-Mounting and Servicing A-4
Statement 1017—Restricted Area A-9
Statement 1024—Ground Conductor A-11
Statement 1030—Equipment Installation A-13
Statement 1033—SELV-IEC 60950 DC Power Supply A-14
Statement 1047—Overheating Prevention A-15
Statement 1074—Comply with Local and National Electrical Codes A-17
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Contents
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Figure 1-1 Cisco AC/DC Power System (with Optional 1RU DC Distribution Shelf) 1-2
Figure 1-2 Component Locations (Front View) on the System Shelf with LCD Screen 1-2
Figure 1-3 Component Locations (Front View) on the System Shelf without an LCD Screen 1-3
Figure 1-4 CSCO-PWR-RECT Rectifier Module 1-4
Figure 1-5 GMT Fuse Panel 1-4
Figure 1-6 1 RU Distribution Shelf 1-5
Figure 1-7 Circuit Breaker 1-5
Figure 1-8 ESD Wrist Strap Connection Point 1-9
Figure 1-9 Two-Inch Clearance Around Front Ventilation Opening 1-10
Figure 2-1 Ground Symbol 2-1
Figure 2-2 Cisco AC/DC Power System Front View 2-4
Figure 2-3 ETSI Shelf Ear Mounts (system shelf and 1RU Distribution Shelf) 2-5
Figure 2-4 Installing the System Shelf 2-5
Figure 2-5 1 RU Distribution Cable Dressing 2-6
Figure 2-6 1 RU Distribution Shelf Installation 2-7
FIGURES
Figure 2-7 1 RU Distribution Shelf Alarm Cabling 2-8
Figure 2-8 Installing 1 RU DC Cabling 2-9
Figure 2-9 Removing the System Shelf Rear Cover 2-10
Figure 2-10 Installing the System Shelf Ground 2-11
Figure 2-11 Installing the 1 RU Distribution Shelf Ground 2-12
Figure 2-12 Installing the AC Cable Shelf 2-14
Figure 2-13 Routing AC Cables 2-15
Figure 2-14 Installing a Rectifier 2-17
Figure 2-15 Removing a Rectifier Blank Faceplate 2-18
Figure 2-16 Circuit Breaker On/Off Positions 2-19
Figure 2-17 Removing the 1 RU Distribution Shelf Faceplate 2-19
Figure 2-18 Installing a Circuit Breaker 2-20
Figure 2-19 Removing the Controller Faceplate 2-22
Figure 2-20 Installing an Alarm Cable 2-23
Figure 2-21 Alarm Board Connection Points 2-24
Figure 2-22 GMT Drawer 2-25
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Figures
Figure 2-23 Installing GMT Cabling 2-26
Figure 2-24 Installing Fuses 2-26
Figure 2-25 Installing Load Connections 2-27
Figure 3-1 Removing the 1 RU DC Cable 3-2
Figure 3-2 Removing the 1 RU Distribution Shelf 3-3
Figure 3-3 Removing the Controller Faceplate 3-4
Figure 3-4 Removing the Alarm Interface Board Cable on the Version 1 of the Controller Hardware 3-5
Figure 3-5 Removing the Alarm Interface Board Cable on the Version 2 of the Controller Hardware 3-5
Figure 3-6 Circuit Breaker On/Off Positions 3-6
Figure 3-7 Removing the 1 RU Distribution Shelf Faceplate 3-7
Figure 3-8 Removing a Circuit Breaker 3-8
Figure 3-9 Removing a Rectifier 3-9
Figure 3-10 Removing a GMT Fuse 3-10
Figure 4-1 System Control Unit 4-1
Figure 5-1 Module Locations 5-3
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Table 1-1 System Configurations 1-6
Table 1-2 Cabling Specifications 1-6
Table 1-3 Electrical Specifications 1-6
Table 1-4 Protection Specifications 1-7
Table 1-5 Status and Alarm Specifications 1-7
Table 1-6 Mechanical Specifications 1-7
Table 1-7 Environmental Specifications 1-7
Table 1-8 Compliance Specifications 1-8
Table 2-1 Supplied Materials for the System Shelf 2-2
Table 2-2 Supplied Materials for the 1 RU Distribution Shelf 2-3
Table 2-3 Non-Supplied Materials 2-3
Table 2-4 Individual AC Feed Specifications 2-16
Table 2-5 Circuit Breaker Positions 2-20
Table 2-6 Alarm and Jumper Designations 2-23
Table 2-7 Recommended Wire Sizes 2-24
TABLES
Table 6-1 Parts List 6-1
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Tables
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About this Guide
This section explains objectives, intended audience, and organization of this publication and describes
conventions that convey instructions and other information.
This section provides the following information:
• Document Objectives
• Audience
• Document Organization
• Document Conventions
• Where to Find Safety and Warning Information
• Obtaining Documentation
• Documentation Feedback
• Obtaining Technical Assistance
• Obtaining Additional Publications and Information
Document Objectives
This user guide explains installation, operation, and troubleshooting for the Cisco AC/DC Power
System.
Audience
To use this publication, you should be familiar with Cisco or equivalent AC/DC power systems hardware
and cabling, telecommunications hardware and cabling, electronic circuitry and wiring practices, and
preferably have experience as a telecommunications technician.
Document Organization
This Cisco AC/DC Power System User Guide, R1.0 is organized into the following chapters:
• Chapter 1, “Introduction,” provides system and component descriptions, system configurations,
system specifications, and safety considerations.
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Document Conventions
• Chapter 2, “System Installation,” provides the unpacking procedure, safety considerations,
installation process, system upgrade information, and initial system startup for the power system.
• Chapter 3, “Component Replacement,” provides maintenance procedures and component
replacement procedures.
• Chapter 4, “System Operation,” provides procedures for using the XCS control system. This
includes normal system control and monitoring.
• Chapter 5, “System Troubleshooting,” provides troubleshooting procedures.
• Chapter 6, “System Parts List,” provides a part numbers list for the Cisco AC/DC Power System.
• Appendix A, “Translated Safety Warnings,” provides translations of all the warnings used in this
document.
Document Conventions
This publication uses the following conventions:
About this Guide
Convention Application
boldface Commands and keywords in body text.
italic Command input that is supplied by the user.
[ ] Keywords or arguments that appear within square brackets are optional.
{ x | x | x } A choice of keywords (represented by x) appears in braces separated by
vertical bars. The user must select one.
Ctrl The control key. For example, where Ctrl + D is written, hold down the
Control key while pressing the D key.
screen font
boldface screen font
Examples of information displayed on the screen.
Examples of information that the user must enter.
< > Command parameters that must be replaced by module-specific codes.
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the
document.
xii
Caution Means reader be careful. In this situation, the user might do something that could result in equipment
damage or loss of data.
Cisco AC/DC Power System User Guide, R1.0
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About this Guide
Where to Find Safety and Warning Information
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.
SAVE THESE INSTRUCTIONS
Statement 1071
Where to Find Safety and Warning Information
For safety and warning information, refer to the Cisco Optical Transport Products Safety and
Compliance Information document that accompanied the product. This publication describes the
international agency compliance and safety information for the Cisco ONS 15xxx systems. It also
includes translations of the safety warnings that appear in the ONS 15xxx system documentation.
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
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Documentation Feedback
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 1 800 553-NETS (6387).
Documentation Feedback
You can send comments about technical documentation to bug-doc@cisco.com.
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.
About this Guide
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
Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting
a web or phone request for service. You can access the CPI tool from the Cisco Technical Support
Website by clicking the To o l s & R e s o u rces link under Documentation & Tools. Choose Cisco Product
Identification Tool from the Alphabetical Index drop-down list, or click the Cisco Product
Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by product ID
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About this Guide
or model name; by tree view; or for certain products, by copying and pasting show command output.
Search results show an illustration of your product with the serial number label location highlighted.
Locate the serial number label on your product and record the information before placing a service call.
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3
and S4 service requests are those in which your network is minimally impaired or for which you require
product information.) After you describe your situation, the TAC Service Request Tool provides
recommended solutions. If your issue is not resolved using the recommended resources, your service
request is assigned to a Cisco 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.
To open a service request by telephone, use one of the following numbers:
Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553-2447
For a complete list of Cisco TAC contacts, go to this URL:
Obtaining Technical Assistance
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.
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Obtaining Additional Publications and Information
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
• Pack et 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
About this Guide
• 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
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CHA PTER
1
Introduction
The Cisco AC/DC Power System is a rack-mounted, AC-to-DC power system that provides a scalable,
compact solution for powering optical platforms at site locations with only AC power available. The
system accepts AC inputs and converts them to nominal -48 VDC for DC-powered equipment. This
compact system provides N+1 redundancy in rectifiers, automated alarm generation, and integrated DC
power distribution through a GMT fuse panel and available four-position 1RU circuit breaker
distribution shelf. This system provides nomimal -48 VDC service to DC-powered network elements
(NEs) through redundant feeds, complementing the resiliency of Cisco's line of Carrier Class optical
products.
The Cisco AC/DC Power System is designed to be mounted in a variety of rack types including IEC,
ANSI (19 inches), ANSI (23 inches), and ETSI configurations and requires only 177.8mm (7.0in.) of
vertical space for medium and large systems and 133.4mm (5.25in.) for small systems. The system is
based on the CSCO-PWR-RECT rectifier module and allows three different configurations based on
load requirements that range from 13.3A to 96A. Additionally, power distribution is accomplished using
a GMT fuse block and/or an optional 1 RU distribution shelf (depending on system size).
The Cisco AC/DC Power System offers these features:
• AC input (A) 100-120VAC
• AC input (B) 200-250VAC
• Nominal -48 VDC rectifier providing up to 1600W
• Front access design
• Temperature hardened -40ºC to +55ºC
• Available in 19in. (IEC and ANSI), ETSI (21in. inside [610mm]), or 23in. mounting arrangements
• Available external distribution shelf with up to 4 load circuit breakers
• 10 position GMT fuse panel
• Active high power factor correction
• 90% or greater efficiency
• Front panel LCD interface
1.1 System Description
This section provides descriptions of the system shelf, rectifier modules, GMT fuses, and the 1 RU
distribution shelf.
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1.1.1 System Shelf
1.1.1 System Shelf
The AC/DC power system shelf consists of four rectifier slots and system monitoring/control interfaces.
The system controller provides rectifier monitoring, operational data collection, alarm generation, and
intra-system communications regulation.
Figure 1-1 Cisco AC/DC Power System (with Optional 1RU DC Distribution Shelf)
Chapter 1 Introduction
124792
There are two system shelves, one of which has an LCD display on the front of the shelf.
Figure 1-2 shows a front view of the version of the system shelf with the LCD screen. The optional
1 RU DC distribution shelf is also shown.
Figure 1-2 Component Locations (Front View) on the System Shelf with LCD Screen
Circuit Breaker Positions
GMT
Fuse
Panel
50A MAX
(F1-10)
15A MAX FUSE
1RU
Distribution
Shelf
System
Shelf
10101
System
LCD
System
Status
Controls
1-2
159330
Rectifier
Positions
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Chapter 1 Introduction
1.1.2 Rectifier Modules
Figure 1-3 shows a front view of the version of the system shelf that does not have an LCD screen. The
optional 1 RU DC distribution shelf is also shown.
Figure 1-3 Component Locations (Front View) on the System Shelf without an LCD Screen
Circuit Breaker
Positions
1.1.2 Rectifier Modules
AC-to-DC power conversion is accomplished using two, three, or four hot-swappable
CSCO-PWR-RECT rectifiers, each with an output voltage of nominal -48 VDC. Figure 1-4 shows a
CSCO-PWR-RECT rectifier module.
System
Status
Rectifier
Positions
GMT Fuse
Panel
50A MAX
(F1-10)
15A MAX FUSE
1RU Distribution
Shelf
System Shelf
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Note The output voltage range is set at the factory and is not user configurable.
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1.1.3 GMT Fuses
Chapter 1 Introduction
Figure 1-4 CSCO-PWR-RECT Rectifier Module
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1.1.3 GMT Fuses
The system shelf is equipped with a 10-position GMT fuse panel. The GMT fuse panel has a 50A
maximum total capacity with a maximum fuse rating of up to 15A (for up to three positions). The fuses
are alarmed and are reported through the system controller.
Figure 1-5 GMT Fuse Panel
1.1.4 1 RU Distribution Shelf
The optional 1RU Distribution Shelf is installed in systems that contain more than 2 rectifiers and acts
as an additional protection point for system loads. The shelf has a rating of 96A and can be equipped
with up to four circuit breakers (up to a maximum rating of 30A each). The breakers are alarmed through
the system controller.
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Chapter 1 Introduction
1.1.5 System Configurations
Figure 1-6 1 RU Distribution Shelf
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The 1RU External Distribution Shelf can accommodate up to four Series-Trip circuit breaker positions.
These breakers have “bullet type” connectors for quick connect and disconnect (Figure 1-7). Circuit
breakers can be rated from 5A-30A.
Figure 1-7 Circuit Breaker
1.1.5 System Configurations
Table 1 -1 lists the configurations available for the Cisco AC/DC Power System.
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1.1.6 General Specifications
Table 1-1 System Configurations
Chapter 1 Introduction
Configuration Rectifiers Distribution
Small Systems 2 CSCO-PWR-RECT Modules 10-position GMT Fuse
Block
Medium Systems 3 CSCO-PWR-RECT Modules 10-position GMT Fuse
Block
4- position 1RU DC
Distribution Shelf
Large Systems 4 CSCO-PWR-RECT Modules 10-position GMT Fuse
Block
4- position 1RU DC
Distribution Shelf
1.1.6 General Specifications
Table 1 -2 provides cabling specifications for the Cisco AC/DC Power System.
Table 1-2 Cabling Specifications
From To Wire Gauge Ampacity
System Shelf 1U DC Distribution
Shelf
Circuit Breakers Load 10 - 8AWG
GMT Fuse Block Load 16 - 14AWG
AC Service Panel System Shelf 3 conductor 14AWG
4 x 6AWG (16mm²)
(intra-shelf cabling)
(6mm² - 10mm²)
(1.5mm² - 2.5mm²)
(2.5mm²) per AC input
Output at
220V AC
Output at
110V AC
32A 13.3A
64A 26.6A
96A 40A
96A (max)
30A (max)
15A (max)
9.1A x (4) inputs
<37A Total
1-6
Table 1 -3 provides electrical specifications for the Cisco AD/DC Power System.
Table 1-3 Electrical Specifications
Electrical Value
Input Voltage (A) 100-120VAC
(B) 200-250VAC
Input Frequency 44-66 Hz.
Transient Response +/- 4%, recovery time 2ms
Load Sharing +/- 5% of nominal current
Table 1 -4 provides protection specifications for the Cisco AC/DC Power System.
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Chapter 1 Introduction
1.1.6 General Specifications
Table 1-4 Protection Specifications
Protection Description
Overcurrent (output) Short circuit and automatic current limiting
Overvoltage Selective shutdown of modules at excessive
output voltages
Table 1 -5 provides status and alarm specifications for the Cisco AC/DC Power System.
Table 1-5 Status and Alarm Specifications
Status & Alarms Description
Alarm Contacts Four form-C alarm contacts (Low Voltage, Mains
Error, Module Failure, Fuse/Circuit Breaker
Failure), maximum 60 VDC, rated at 1A
Status (Rectifier) Green LED indicates power is within acceptable
range
Yellow LED indicates current limit/thermal
protection
Red LED indicates overvoltage shutdown or
rectifier alarm
Table 1 -6 provides mechanical specifications of the Cisco AC/DC Power System.
Table 1-6 Mechanical Specifications
Mechanical Description
Shelf Dimensions
17.4 x 5.25 x 10.8in. (442 x 132.9 x274mm)
WxHxD
1RU Shelf WxHxD 17.1 x 1.69 x 9.175in. (434 x 43 x 233mm)
Mounting ETSI, 19in. (IEC and ANSI) or 23in.
Table 1 -7 provides environmental specifications for the Cisco AC/DC Power System.
Table 1-7 Environmental Specifications
Environment Description
Shock/Vibration (NEBS) Level 3, Class B Certification
Earthquake Zone 4 Compliant
Audible Noise <60 dBA
Ambient Temperature -40°C to 55°C
Storage Temperature -40°C to +85°C
Relative Humidity 10-90%, non-condensing
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Table 1 -8 provides compliance specifications for the Cisco AC/DC Power System.
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1.2 Safety Recommendations
1
Table 1-8 Compliance Specifications
Compliance Description
Radiated EMC EN 61000-6-2, EN 61000-6-3, FCC Part 15 Class B
EMC EN 61000-6-2, EN 61000-6-4
Safety CSA C22-2 No. 60950-1, UL 60950-1 and
IEC60950-1/EN60950-1
ESD Immunity EN61000-4-2
RF Immunity EN61000-4-3
Surge Immunity IEC/EN61000-4-5
Fast Transient/Burst
IEC/EN61000-4-4
Immunity
Immunity EN61000-4-2
ETSI 300-386-TC
Chapter 1 Introduction
1.2 Safety Recommendations
Any device that uses electricity requires proper guidelines to ensure safety.
Warning
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
• The Cisco AC/DC Power System should only be installed or serviced by qualified personnel.
• An ESD wrist strap is included to protect sensitive electronics and should be connected to a metal
surface to act as a ground. This ensures that all components have the same charge. An ESD wrist
strap should be used when working with internal components that are installed in the shelf. The wrist
strap connects at the rear of the system shelf as shown in Figure 1-8. If rear access is not available,
the ESD wrist strap can be connected to the shelf mounting ears or the controller faceplate thumbscrews.
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Chapter 1 Introduction
1.2.1 Installation Warning
Figure 1-8 ESD Wrist Strap Connection Point
124769
ESD Connection
Point
•
Keep the system area clear and dust-free during and after the installation.
• Always check for possible hazards before beginning work.
• This equipment is designed to permit the connection of a grounded conductor for the DC supply
circuit at the equipment.
1.2.1 Installation Warning
The following safety guidelines should be observed when transporting or moving the system to the
install location:
• Before moving the Cisco AC/DC Power System, read the system specifications sheet to determine
if the site meets all the size, environmental, and power requirements.
• The Cisco AC/DC Power System should be properly mounted to the equipment rack.
The Cisco AC/DC Power System is designed for installation in restricted access locations. A restricted
access location is defined as an equipment location where both of the following conditions apply:
• Access can only be gained by service persons or users who understand the restrictions applied to the
location and any precautions that must be taken.
• Access to the system is obtained through the use of a tool or lock and key, or other means of security,
and is controlled by the authority responsible for the location.
1.2.2 Operating Temperature Warnings
Warning
May 2006
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of: 55° Celsius.
Statement 1047
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1.2.3 Electrical Safety Warnings
Chapter 1 Introduction
Warning
To prevent airflow restriction, allow clearance around the ventilation openings to be at least 2.0
inches (50.8 mm).
Figure 1-9 Two-Inch Clearance Around Front Ventilation Opening
131187
Airflow
2 in.
50.8 mm
This power system is intended for use in a restricted location where the ambient temperature falls
between -40° and +55° Celsius. It is not recommended to continually operate the power system in an
area that exceeds the maximum recommended operating temperature. To prevent the Cisco AC/DC
Power System from overheating, the rectifier automatically shuts down when a thermal alarm is tripped.
1.2.3 Electrical Safety Warnings
The following are electrical safety recommendations for working near the Cisco AC/DC Power System:
Warning
Warning
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection
authority or an electrician if you are uncertain that suitable grounding is available.
Installation of the equipment must comply with local and national electrical codes.
Statement 43
Statement 1024
Statement 1074
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Chapter 1 Introduction
1.2.3 Electrical Safety Warnings
Warning
Warning
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units.
Statement 12
This product requires short-circuit (overcurrent) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.
Installation of the equipment must comply with local and national electrical codes.
• Before connecting the AC input source to the power system, always verify frequency and voltage.
• When making AC connections, all AC power and DC load distribution breakers should be in the
Statement 1045
Statement 1074
OFF position.
• Ensure that the proper size circuit protection is being used.
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1.2.3 Electrical Safety Warnings
Chapter 1 Introduction
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System Installation
This provides step-by-step instructions for installing a Cisco AC/DC Power System. If you are installing
a new system, begin with the “2.1 Pre-Installation” section on page 2-1. If you are upgrading an existing
system, go to the “2.6 System Upgrades” section on page 2-28 for instructions.
2.1 Pre-Installation
The following information should be reviewed before attempting to install the Cisco AC/DC Power
System.This section includes shelf markings, tools, equipment, and an installation checklist. Refer to the
“1.2 Safety Recommendations” section on page 1-8 before beginning installation.
Note Each system installation is unique, so please review specific site requirements and system configurations
before installing the system.
CHA PTER
2
2.1.1 Ground Symbol
Figure 2-1 shows the ground symbol located on the Cisco AC/DC Power System.
Figure 2-1 Ground Symbol
2.1.2 Tools Required
The following tools and parts are required for safe installation of the Cisco AC/DC Power System:
• Digital multimeter
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