Connecting Routers to a DC-Input Power Supply | Cisco Systems 2600

Chapter 3 Installing the Router

Power Connections

Warning AC connected units must have a permanent ground connection in addition to the power cable ground wire. NEBS-compliant grounding satisfies this requirement. Statement 284

Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than:

15A, 120VAC (10A, 240VAC). Statement 1005

Connecting Routers to a DC-Input Power Supply

If your router has a DC-input power supply, follow the directions in this section for proper wiring.

Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than:

15A, 60VDC. Statement 1005

Warning Use copper conductors only. Statement 1025

DC Wiring Requirements

Table 3-1summarizes the wiring requirements for Cisco 2600 series routers with a DC-input power supply.

Note For installations compliant with the National Electric Code, AWG 14 (2.0 mm2) wire is required for DC input and safety ground wire.

Table 3-1 DC Wiring Requirements for Cisco 2600 Series Routers

Router	DC Input	DC Input Wire Size1	Safety Ground Wire Size	Overcurrent Protection
Cisco 2600 with	–48 to –60 VDC, 4 A2	AWG 18 (1.0 mm2)	AWG 14 (2.0 mm2)	15 A maximum
1-RU chassis height

Cisco 2691	24 - 36 V, 8 A,	AWG 18	AWG 14	15 A maximum
	positive or negative,	(1.0 mm2)	(2.0 mm2)
	single or dual sources3
	36 - 60 V, 4 A,	AWG 18	AWG 14	15 A maximum
	positive or negative,	(1.0 mm2)	(2.0 mm2))
	single or dual sources

1.See the note above this table for National Electric Code wire size requirements.

2.The input voltage tolerance limits for nominal 48-V power supplies are 38 and 72 VDC.

3.The input voltage tolerance limits for nominal 24/48-V power supplies are 18 and 72 VDC.

Cisco 2600 Series Routers Hardware Installation Guide

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Cisco Systems 2600 manual Connecting Routers to a DC-Input Power Supply, DC Wiring Requirements

Contents

Cisco 2600 Series Routers Hardware Installation Guide Corporate Headquarters Cisco 2600 Series Routers Hardware Installation Guide N T E N T S Iii Serial DTE or DCE Devices Initial Configuration Using the Setup Command Facility Procedure for the tftpdnld Command Configuration Register Objectives Vii Conventions AudienceOrganization Chapter Title Description Safety Warnings Bewaar Deze Instructies Warnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla Sicurezza Aviso Instruções Importantes DE Segurança Guarde Estas Instruções GEM Disse Anvisninger Xii Xiii Related Documentation Xiv Cisco Product Document Title Replacement, Repair, or Refund Policy for Hardware Cisco 90-Day Limited Hardware Warranty TermsDuration of Hardware Warranty Xvi Cisco.com Obtaining DocumentationDocumentation Feedback Ordering Documentation Cisco Technical Support Website Submitting a Service RequestObtaining Technical Assistance Xviii Xix Definitions of Service Request SeverityObtaining Additional Publications and Information Preface Obtaining Additional Publications and Information Hardware Features Overview of Cisco 2600 Series Routers Advanced Cisco Power Reading the Front-Panel LEDs PWR RPSActivity SYS/RPS Reading the Rear-Panel LEDs ACT Cisco 2613-Rear-Panel LEDs FDX LinkACT Modules, Interface Cards, and Memory CF1 Interface Numbering WAN and LAN Interface Numbering 11 Interface Numbering in Chassis with 1-RU Height Voice Interface Numbering System SpecificationsDescription Specification Regulatory Compliance Safety Recommendations Safety with Electricity Preventing Electrostatic Discharge Damage General Site Requirements Power Supply ConsiderationsPower Source Input Power Tolerance Limits Site Environment Equipment Racks Installation ChecklistSite Configuration Creating a Site Log Task Verified by Date Tools and Equipment for Installation and Maintenance Inspecting the Router Console and Auxiliary Port Considerations Console Port Connections Preparing to Connect to a Network Auxiliary Port Connections Ethernet Connections Token Ring Connections Serial DTE or DCE Devices Configuring Serial ConnectionsSerial Connections Device Type Gender Typical Devices Signaling Standards SupportedDistance Limitations EIA/TIA-232 Isdn BRI ConnectionsAsynchronous/Synchronous Serial Module Baud Rates Distance EIA-530 Distance Rate bps Feet Meters 56-K/Switched-56-kbps DSU/CSU Connections Low-Capacitance Cable OL-2171-06 Installing the Router For WICs and VICs Installing Modules, Interface Cards, and Power SuppliesFor network modules For AIMs For internal power supplies Setting Up the ChassisSetting the Chassis on a Desktop For external power supplies Mounting the Chassis in a Rack Right To the other side of the chassis. Brackets for 19-inch rack Brackets for 19-inch rack To the other side of the chassis Attaching the Brackets to a Router of 2-RU Height Use two screws on each side For 19-inch rack Right bracket Installing the Router in a Rack V0 EN Attaching Wall-Mount Brackets to the Router Mounting the Chassis on the WallAttaching Rubber Feet to the Router Mounting the Router on the Wall 16 Attaching the Wall-Mount Brackets Installing the Chassis Ground Connection 17 Mounting the Chassis on the Wall Ring terminal Power Connections Connecting Routers to AC Power Router DC Input DC Input Wire Size1 Connecting Routers to a DC-Input Power SupplyDC Wiring Requirements 15A, 120VAC 10A, 240VAC. Statement Wiring Procedure for DC Input Ports and Cabling Connecting WAN, LAN, and Voice CablesConnecting Routers to the Cisco Redundant Power System Port or Connection Port Type, Color Connected To Cable LAN, WAN, and Voice Connection Procedures Connecting to a Console Terminal or Modem Connecting to the Console Port Connecting to the Auxiliary Port 23 Connecting to a Console Terminal 24 Connecting a Modem to the Auxiliary Port Identifying a Rollover Cable Front Panel Indicators Powering Up the RouterChecklist for Power Up Routers with 1-RU Chassis Height Power-Up Procedure Routers with 2-RU Chassis Height Configuring the Router Initial Configuration Using SDM Initial Configuration Using the Setup Command Facility Enter a hostname for the router this example uses Initial Configuration Using the CLI Manual Configuration Configuration is displayed To proceed with manual configuration using the CLI, enter no OL-2171-06 Troubleshooting Isolating Problems Troubleshooting the Power and Cooling Systems Environmental Reporting Features Troubleshooting Modules, Cables, and Connections Cisco Technical Assistance Center Recovering a Lost PasswordSystem Messages Using the ROM Monitor Entering ROM Monitor Mode ROM Monitor Commands Enter ROM Monitor Mode by Using the reload Command ROM Monitor Command Syntax Conventions Command abc Boot Commands in the ROM Monitor ROM Monitor Command DescriptionsRouter Management Commands Informational Commands in the ROM Monitor Debugging Commands Other Useful ROM Monitor Commands Configuration Register Commands Modifying the Configuration Register in Menu Mode Recovering Cisco IOS Software Images Modifying the Configuration Register by Hexidecimal Entry Procedure for the xmodem Command Copying an Image from the Console Using the xmodem CommandDescription and Options of the xmodem Command Console Requirements Restrictions on the tftpdnld Command Procedure for the tftpdnld Command Specify the required variables, for example DEFAULTGATEWAY=172.16.19.1 Nvram Configuration Register SettingsBit Number Hexadecimal Meaning Changing Configuration Register Settings Configuring the Boot Field Boot Field Meaning Bit Address net host Enabling Booting from Flash Memory Baud Bit OL-2171-06 Numerics IN-1 Dram IN-2 Link LED Isdn BRILAN IN-3 Sdram IN-4 IN-5 IN-6