Site Requirements, AC Power, DC Power | Cisco Systems UBR-3X10

Chapter 2 Preparing for Installation

Site Requirements

Site Requirements

To ensure normal operation and avoid unnecessary maintenance, plan your site configuration and prepare your site before installation. Take into account the following criteria:

Note To locate the most reliable channels for your downstream and upstream channel plans, we recommend that you perform a sweep of all available channels for at least a 24 hours to verify the presence or absence of impulse and ingress noise.

•Select forward and reverse channel frequencies from the range specified in your channel plan.

•Verify that your cable network meets system requirements and Data-over-Cable Service Interface Specifications (DOCSIS) and/or EuroDOCSIS downstream and upstream specifications.

•Make sure that the site maintains an ambient temperature of 32 to 104°F (0 to 40°C), and keep the area around the chassis as free from dust as is practical.

AC Power

The AC input of the power supply module uses a power factor corrector that allows the Cisco uBR 3x10 RF Switch to operate on input voltage and frequency within the ranges of 100 to 240 VAC and

50 to 60 Hz.

Note We recommend an uninterruptable power source to protect against power failures at your site. An AC-input power supply has an electrical current rating of less than 1 A.

See Appendix A, “Specifications and Component Part Numbers,” for system power specifications, including input voltage and operating frequency ranges.

DC Power

The DC input of the power supply module operates at -48 VDC input voltage and supplies +12.0 VDC power to the Cisco uBR 3x10 RF Switch’s internal components through the midplane.

Note Each DC-input power supply has an electrical current rating of 0.7A, 20 VA. Use a minimum of 14 AWG (2.5 mm2) wire for the input to each DC-input power supply. The power input must be protected by a 15 A circuit breaker or fuse that is in compliance with your local electric regulations.

See Appendix A, “Specifications and Component Part Numbers,” for system power specifications, including input voltage and operating frequency ranges.

Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide

	OL-1984-06	2-5

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Cisco Systems UBR-3X10 manual Site Requirements, AC Power, DC Power

Contents

Text Part Number OL-1984-06 Americas Headquarters Copyright 2004-2007 Cisco Systems, Inc. All rights reserved Audience Document Objectives Document Organization ScopeDocument Conventions This guide uses the following conventions Conservez CES Informations Bewaar Deze InstructiesSäilytä Nämä Ohjeet Conservare Queste Istruzioni Bewahren SIE Diese Hinweise GUT AUFTA Vare PÅ Disse Instruksjonene Guarde Estas Instruções Spara Dessa Anvisningar GEM Disse Anvisninger Page For high availablity HA information, see For installation information, seeRelated Documentation Cisco.com Obtaining DocumentationOrdering Documentation For other information, see Documentation Feedback Submitting a Service RequestObtaining Technical Assistance Cisco Technical Support Website Obtaining Additional Publications and Information Definitions of Service Request Severity Preface Obtaining Additional Publications and Information Chassis Features About the Cisco uBR 3x10 RF Switch Front View of the Cisco uBR-3x10 RF Switch Interface Numbering Interface Overview Hardware Component Descriptions Power Supply Module Ethernet Controller Module Power Supply Module Function LEDDuring line card operation Flashes as transmit/receive activity occurs LED Name Color Description Upstream Switch Modules Color Description Downstream Switch Module Midplane Assembly Power Divider Assembly Cable Kits Preparing for Installation Lifting Safely Safety Lifting the Chassis Safety with Electricity Preventing Electrostatic Discharge Damage Site Requirements AC PowerDC Power Site Environment Site Configuration Maintaining Normal OperationSpecification Minimum Maximum Headend Certification Headend WiringProvisioning the Headend Equipment Racks MCX Connector Removal Tool Tools for Installation Cable management bracket optional Verifying the Shipping Container Contents Cisco Information Packet Description Received Installation Checklist Installing the Cisco RF Switch Task Verified by Date Checklist Rack Installation Bracket InstallationTools and Fasteners Chassis Grounding Sample Configuration Using Two Cisco uBR 3x10 RF Switches Sample Configuration Using One Cisco uBR 3x10 RF Switch Equipment Attaching the Brackets for the Cisco uBR10012 Cmts Equipment 72689 Cmts Sample Configurations for the Cisco uBR7246VXR Cmts Front Rack-mount Bracket Installing the Chassis in the Rack Installing the Cisco RF Switch This section includes the following procedures Connecting PowerGrounding the Cisco uBR 3x10 RF Switch Chassis Grounding Location Tools and Equipment Connecting AC Power Connecting AC Power to the Power Supply Connecting DC Power to the Power Supply Connecting DC Power Protection Scheme for the Cisco uBR10012 Cmts Cards and a Vecima HD4040 Upconverter Cisco uBR RF Switch Flush front Coaxial Cables RF Cable Assemblies MCX Header Blocks Attenuators Connectors and MCX Connectors Coaxial Cables Universal Cable Holders Installing the Header Blocks on the Cisco uBR 3x10 RF Switch 103289 RFS1 Color RFS Color Cmts Unused downstream Not connected RFS 1 Color RFS ColorGray Brown Red Yellow White Violet Blue Orange Cabling the Working and Protect Line Cards to the RF Switch Connecting the RF Cables MC16x, MC28C Line Cards 10 Cisco uBR 3x10 RF Switch-MCX Connection Locations Gray Working Protect Color Line Card Slot UPx Conn Brown Working Color Line Card Slot DS Port UPx ConnGray Working Brown Protect RFS-CMTS Cabling the Output Cables Cable Plant to HUBRFS Cmts 13 RF Switch Cable Plant Outputs Turquoise Cmts and Protect wiring Cable Color Slot 8/0-Ports RF Switch-Port Slot 8/1-Ports Cable Color Slot 7/0-Ports RF Switch-Port Slot 7/1-Ports Cable Color Slot 6/0-Ports RF Switch-Port Slot 6/1-Ports RFS-2-P1A White RFS-2-7ARFS-2-7B RFS-2-P1B Blue Connecting the RF Cables Cisco uBR10-MC5X20S/U/H Screws Bevel Universal Cable Holder Cable RF Switch Line Card Port Color User Defined US7 Cable Plant wiring Powering On the RF Switch OL-1984-06 Protection Scheme for the Cisco uBR7246VXR Cmts Cabling the RF Switch With Cisco uBR7246VXR Cmts RFS-2 RFS-1 Cisco uBR7246VXR Universal Broadband Router Configurations UPx3 UPx2 UPx1 Coaxial Cables Single and Bundle Connector Type Cisco uBR-MC16x Cisco uBR-MC28C MCX Connectors and F-Connectors Mapping the Working and Protect Line Cards to the RF Switch Installing the Header Blocks on the Cisco uBR 3x10 RF Switch Cabling the Working Line Card VXR1-VXR4 Connecting the Cables Cisco uBR-MC16xCard RFS-2-1B RFS-2-5B RFS-1-1B RFS-1-5B Blue RFS-2-1A RFS-2-5A RFS-1-1A RFS-1-5A WhiteRFS-2-1C RFS-2-5C RFS-1-1C RFS-1-5C Green RFS-2-1D RFS-2-5D RFS-1-1D RFS-1-5D Yellow RFS-2-3B RFS-2-7B RFS-1-3B RFS-1-7B Blue RFS-2-3A RFS-2-7A RFS-1-3A RFS-1-7A WhiteRFS-2-3C RFS-2-7C RFS-1-3C RFS-1-7C Green RFS-2-3D RFS-2-7D RFS-1-3D RFS-1-7D Yellow VXR1-LC Cabling the Protect Line Cards VXR5VXR2-LC VXR3-LC US Ports Cabling DS Ports to the Input Ports on the UpconverterVXR5-LC Purple Cabling the Output Ports Upconverter to RF Switch Color UPx RFS Ports Supports 11 RF Switch Cable Plant Outputs Turquoise Connecting the Cables Cisco uBR-MC28xLine Card LC1-RFS-2 LC2-RFS-2 LC3-RFS-1 Cable Color US Ports VXR3 US0-US3 RFS-1-P1 A-D RFS-2-P1 H-K RFS-1-P1 H-K Cabling the Protect Line Cards VXRUS0-US3 RFS-1-P2 A-D RFS-2-P2 H-K RFS-1-P2 H-K Cabling DS Ports to the Input Ports on the Upconverter VXR2 VXR1UPx1 Input VXR4 UPx2 InputVXR5 UPx3 Input 16 Output Cables Gray and Brown Color UPx3 Output RFS Ports Color UPx1 Output RFS PortsColor UPx2 Output RFS Ports Following section describes cabling the RF switch for output Powering On the RF Switch Description Information Troubleshooting the Installation and Setup12 for information on contacting Cisco technical assistance Troubleshooting Flowchart Troubleshooting the Power Subsystem RFswitch App Troubleshooting the Ethernet Controller Ethernet Controller Switch Settings LS1 LS2 BR1 BR0MR1 MR2 Status LEDs Troubleshooting Upstream and Downstream Switch Modules Module Working Ports Cisco uBR 3x10 RF Switch Slot InformationType Module Working Ports Type OL-1984-06 Description Specification Specifications and Component Part NumbersPhysical Specifications RF Specifications Part Numbers RF Switch ComponentsTools and Equipment Tools WhiteSands Engineering Order Number1 Cable Part Numbers Description Cisco WhiteSands Belden Where Used D E IN-6 Gravity, maintaining low center IN-7 Rack Vecima URL Upstream module Status Environmental Telephone jacks Tools For installation