Power Supply Overview | Cisco Systems SCE 2000 4/8xFE specification

Chapter 4 Installation and Maintenance

Power Supply Overview

Figure 4-11: Grounding the Unit (DC)

This completes the procedure for installing the SCE 2000 chassis. Proceed to the next section, Connecting to the Power Supply, to continue the installation.

Power Supply Overview

The SCE 2000 is available in two power options:

•Dual line feed AC power — SCE 2000 is shipped with two appropriate AC power supply cords.

•Dual line feed DC power — requires appropriate cables (hex or loop connectors) (see Reconnecting DC-Input Power Supply Unit (on page 4-18)).

The dual power supply units supply hot-swappable, redundant power. Redundant power is useful as a failover; if a situation occurs where one power supply is down (for instance, a power supply fails or a new power supply needs to be installed), the SCE 2000 can continue to run properly using the other power supply.

Each power supply has fans that cool the power supply unit. These fans also help to cool the internal components of the SCE 2000, as they direct the air flow to the outside through vents in the rear of the power supply unit.

The faceplates of both power supplies have a handle, an on/off switch, and one captive installation screw. An AC-input power receptacle is available on the AC-input power supply and a DC-input terminal block is available on the DC-input power supply.

Note that the power supply units are asymmetrical, with a screw in only one corner of the unit. Therefore, both power supply units can be fastened only if both units are inserted in the proper orientation. This also prevents the accidental installation of one DC unit and one AC unit. (Refer to the following figures).

Cisco SCE 2000 4/8xFE Installation and Configuration Guide

	OL-7826-05	4-11

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Cisco Systems SCE 2000 4/8xFE manual Power Supply Overview, Grounding the Unit DC

Contents

Corporate Headquarters Cisco SCE 2000 4/8xFE Installation and Configuration Guide Cisco SCE 2000 Installation and Configuration Guide N T E N T S Topology Cabling the Line Ports and Completing the Installation Index Document Revision History Preface Chapter Title Description AudienceOrganization Related Publications Convention Description Boldface font Conventions Ordering Documentation Obtaining DocumentationWorld Wide Web Documentation CD-ROM Cisco.com TechnicalAssistance Center Obtaining Technical AssistanceDocumentation Feedback Contacting TAC by Telephone Contacting TAC by Using the Cisco TAC WebsitePage General Overview Cisco Service Control Concept Service Control for Broadband Service Providers Cisco Service Control Capabilities SCE Platform SCE Platform in the Network Management and Collection Subscriber Management Service Configuration ManagementNetwork Management Data Collection Front Panel Introduction to the SCE Platform Port Quantity Description Connect This Port To… Refer to Connecting the Line LED Groups LED Groups Description Back Panel Checking the Shipping Container Contents Task Verified Date SCE 2000 Installation Checklist Topology Considerations SCE 2000 Platform Redundancy FunctionalityNumber of links Bypass Mechanism Link Continuity Single Link Inline Topology Physical TopologiesSingle SCE 2000 Topologies Single SCE Platform Single Link Receive-Only Topology Single Link Receive-only Topology Single SCE Platform Dual Link Inline Topology Dual link Inline Installation Dual Link Receive-Only Topology Two Cascaded SCE 2000s For Dual Links Two Cascaded SCE 2000s Inline Topology Topology-Related Parameters Connection Mode Parameter SCE 2000 Configuration Physically Connected Links Parameter Preparing to Install the SCE 2000 Platform Installation and Maintenance Tools and Parts Required Dimension Measurement Site Requirements Specification Acceptable RangeSite Requirement Guidelines Airflow Approval Specification Installing the SCE 2000 Platform Installing the SCE 2000 on a Workbench or Tabletop Installation Precautions Rack-Mounting a SCE 2000 Platform Attaching the Mounting Brackets 4-post Attaching the Brackets to the SCE Assembling the Slider Brackets Attaching the Crossrail Supports to the Rack Sliding the SCE Platform into the Rack Mounting the System to the Rack 10 Grounding the Unit AC Attaching a Chassis Ground Connection 11 Grounding the Unit DC Power Supply Overview LEDs 12 AC Power Module Refer to the following tables for LED status information LED State Power Supply Unit Condition Power Supply Specifications Removing and Replacing a Power Supply Unit Powering Down an AC-Input Power Supply Removing the Power Supply Unit Reconnecting the Power Replacing the Power Supply Unit Reconnecting DC-Input Power Supply Unit Reconnecting AC-Input Power Supply Unit 15 Connecting the DC Power Removing the Fan Module Fan Module OverviewRemoving and Replacing the Fan Module 17 Inserting the Fan Module Replacing the Fan Module Replacing the Battery Connecting the Local Console Type y and press Enter System configuration dialog begins Setting Up the Local Console Parameter Definition Initial System ConfigurationSetup Command Parameters Parameter Definition SCE 2000 ? Configuring Initial Settings Setting the Passwords Configuring the Hostname Configuring Time Settings Type the minutes offset from UTC and press Enter Configuring the DNS Settings Configuring the RDR Formatter Destination ConfiguringAccess Control Lists ACLs Initial IP address Wildcard bits Range Entry FormatsOrder of Entries Does this entry permit access? yes When all ACLs have been created, press Enter Configuring Snmp Enter the Snmp trap managers menu Type the name of the system administrator and press Enter Configuring the Topology-Dependent Parameters Is this a cascade deployment? no Enter On-failure behavior 1- bypass Cutoff Enter your choice Example Completing and Saving the Configuration System informs you that the configuration is complete Connecting the Management Interface Verifying Management Interface Connectivity Cabling the Management Port Example Page Connecting the line ports to the network Cabling the Line Ports and Completing Installation Cabling Diagram for Single Link Inline Topology Cabling Diagrams Single Link Receive-only Topology Dual Link Two SCE 2000s Topology Dual Link Single SCE 2000 Topologies SCE 2000 #2 Cabling the FE Line Port Connecting the FE Line Interface Ports Examining the Link LEDs Testing Connectivity Examining Link LEDs and Counters This displays the port link and auto-negotiation status Use the show interface linecard 0 connection-mode command Installing a Cascaded System Topology-Related Parameters for Redundant Topologies CLI Commands for Cascaded SystemsConfiguring the Connection Mode Link Mode Monitoring the System Loading and Activating a Service Control Application Page Checking Conditions Prior to System Startup Starting the SCE 2000 Platform Starting the System and Observing Initial Conditions Viewing the User Log Counters Final TestsVerifying Operational Status Viewing Configuration Managing SCE 2000 Configurations Type copy running-config startup-config Saving the Configuration Settings SCE 2000#copy running-config startup-config Recovering a Previous Configuration Copy tffs0system/prevconf/config.tx1 tffs0system/config.txt Performing Complex Configurations SCE 2000#show version Displaying the SCE Platform Version Information Displaying the SCE Platform Inventory CLI show inventory command Displaying the System Uptime Rebooting and Shutting Down the SCE PlatformRebooting the SCE Platform Shutting Down the SCE Platform Following example shows the commands for system shutdownPage Troubleshooting Overview Troubleshooting Action Yes Step Troubleshooting ToolsCLI Commands for Troubleshooting Troubleshooting the management subsystem Logging System User Log Copying the User Log Viewing the User Log Counters SCE 2000 Operational Status Check the LEDsGenerating a File for Technical Support Identifying Startup Problems Problem Solving Using a Subsystems Approach Symptom Possible Cause Possible Solution Troubleshooting the Power Subsystem LED Label Color State Function Troubleshooting the Firmware Package InstallationDiagnostic Action Management-image Instead of system-image Troubleshooting the Management Subsystem Refer to Access Control Lists Symptom Diagnostic Action Possible Cause Possible Solution Host-ip-address Troubleshooting the Link Interface Subsystem Show interface Troubleshooting Problem Solving Using a Subsystems Approach Page Index Index Index