Cisco Systems 7609 manual Power Connection Guidelines, Power Requirements

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Chapter 2 Preparing for Installation

Power Connection Guidelines

Power Requirements

Follow these requirements when preparing your site for the switch installation:

The redundant power option provides a second, identical power supply to ensure that power to the chassis continues uninterrupted if one power supply fails or input power on one line fails.

In systems configured with the redundant power option, connect each of the two power supplies to a separate input power source. If you fail to do this, your system might be susceptible to total power failure due to a fault in the external wiring or a tripped circuit breaker.

To prevent a loss of input power, be sure the total maximum load on each circuit supplying the power supplies is within the current ratings of the wiring and breakers.

In some systems, you might use an uninterruptible power supply (UPS) to protect against power failures at your site. Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems like the Cisco 7609 Internet Router, which can have substantial current draw fluctuations due to bursty data traffic patterns.

Use the information in Table 2-2to estimate the power requirements and heat dissipation of a Cisco 7609 Internet Router based on a given configuration of the switch. Table 2-4provides a sample calculation. Determining power requirements might be useful for planning the power distribution system needed to support the switch.

Power Connection Guidelines

This section provides the guidelines for connecting the Cisco 7609 Internet

Router AC and DC power supplies to the site power source.

AC-Powered Systems, page 2-9

DC-Powered Systems, page 2-11

 

Cisco 7609 Internet Router Installation Guide

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OL-5079-04

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Contents Cisco 7609 Internet Router Installation Guide Corporate HeadquartersCisco 7609 Internet Router Installation Guide Preface Preparing for Installation Troubleshooting Connector and Cable Specifications B-1MT-RJB-3 Repacking the Cisco 7609 Internet Router C-1Audience OrganizationConventions Chapter Title DescriptionPage OL-5079-04 Cisco 7609 Internet Router Installation Guide OL-5079-04 Xii Obtaining Documentation Related DocumentationWorld Wide Web Ordering Documentation Documentation CD-ROMDocumentation Feedback Obtaining Technical Assistance Cisco.comTechnical Assistance Center Cisco TAC Web SiteCisco TAC Escalation Center Xviii Product Overview Product Overview Product Overview Cisco 7609 Internet Router Cisco 7609 Internet Router System Features Bandwidth and Port DensityRedundancy Architecture Cisco 7609 Internet RouterCisco 7600 Internet Router Components Fan AssemblyComponent Hot Swapping Power Supplies Cisco 7609 Internet Router Internal AirflowAC-Input Power Supply DC-Input Power Supply Load SharingEnvironmental Monitoring of the Power Supply LEDPower Supply Fan Assembly OL-5079-04 Preparing for Installation SafetySite Requirements Environmental RequirementsModule Type Watts 240 VACAmps OSM-1OC48-POS-SS+ OSM-2OC12-ATM-MM, -SI OSM-4GE-WAN-GBIC WS-X6K-S2U-MSFC2 Power Connection Guidelines Power RequirementsAC-Powered Systems AC Power Cord Connectors for the 4000W Power Supply Site Preparation Checklist DC-Powered SystemsPlanning Activity Verified By Time Date Installing the Cisco 7609 Internet Router Unpacking the Cisco 7609 Internet Router Rack-Mounting Guidelines Installing the Rack-Mount KitPart Description Received Installing the Shelf and Crossbar Brackets Required ToolsInstalling the Shelf Brackets Installing the L Brackets and Cable Guides Attaching L Brackets and Cable Guides Installing the Cisco 7609 Chassis in the Rack Installing the Cisco 7609 Chassis in the Rack Installing the Stabilizer Kit Quantity Part Description ReceivedInstalling the Stabilizer Brackets System Ground Connection Required Tools and EquipmentWire-stripping tool Installing the Power Supplies in the Cisco 7609 Chassis Connecting the System GroundConnecting the Supervisor Engine Console Port Attaching the Interface CablesSupervisor Engine Console Port Connector OL-5079-04 Connecting the Supervisor Engine Uplink Ports Connecting the Supervisor Engine Uplink PortsConnecting to the Interface Ports SC-Type Fiber-Optic Connector10 LC Fiber-Optic Connector Verifying Cisco 7609 Chassis Installation OL-5079-04 Troubleshooting Problem Solving to the System Component Level Getting StartedIdentifying Startup Problems Cisco 7600 Series Internet Router Module Installation Guide Troubleshooting the Power Supply Troubleshooting the Fan Assembly Troubleshooting ModulesContacting Customer Service OL-5079-04 Removal and Replacement Procedures Removing and Replacing the Power Supply Removing an AC-Input Power SupplyAC-Input Power Supply Front Panel Handling an AC-Input Power Supply Installing an AC-Input Power Supply Removing a DC-Input Power Supply DC-Input Power Supply Front Panels DC-Input Wire Connections on the Terminal Block Handling a DC-Input Power Supply Installing a DC-Input Power Supply DC-Input Power Supply Connectors Removing and Replacing the Fan Assembly Removing the Fan Assembly Fan AssemblyInstalling the Fan Assembly Checking the Installation OL-5079-04 Technical Specifications Specification EnvironmentalCisco 7609 Internet Router Power Supplies 2500W AC- and DC-input Power Supplies4000W AC-input Power Supply Regulatory Standards ComplianceConnector and Cable Specifications Connector SpecificationsGigabit Interface Converters, page B-6 RJ-45 MT-RJCisco 7609 Internet Router Installation Guide Figure B-3 LC Fiber-Optic Connector SC-TypeGigabit Interface Converters WS-G5484WS-G5486 WS-G5487Cable Specifications Console Port Mode SwitchConsole Port Mode 1 Signaling and Pinouts Identifying a Rollover CableDB-9 Adapter for Connecting to a PC DB-25 Adapter for Connecting to a TerminalRollover Cable Modem Adapter Signal RJ-45 Pin DB-25 Pin Modem AdapterRJ-45-to-DB-25 Terminal Console RJ-45-to-RJ-45 RJ-45-to-DB-25Console Port Mode 2 Signaling and Pinouts Console Port Console Device Pin signal Input/OutputPatch Cord Configuration Example Mode-Conditioning Patch CordPatch Cord Installation Differential Mode DelayFigure B-9 LED Transmission Compared to Laser Transmission Appendix B Connector and Cable Specifications Repacking the Cisco 7609 Internet Router Figure C-1 Packing Material Figure C-2 Final Package OL-5079-04 Numerics IN-2 IN-3 IN-4 IN-5 IN-6