Cisco Systems ASR 903 manual Redundancy, Dying Gasp, Status LEDs, DC Power Specifications

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Chapter 1 Cisco ASR 903 Router Overview

Cisco ASR 903 Router Features

AC Power Specifications, page 1-5

Redundancy

The Cisco ASR 903 Router chassis includes a slot for an optional redundant power supply. The redundant power supply 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. The Cisco ASR 903 Router supports current sharing between the power supplies.

If you install a redundant power supply on the Cisco ASR 903 Router, we recommend that you connect each power supply to a separate input power source in order to ensure that the router maintains power in the event of a power interruption caused by an electrical failure, a wiring fault, or a tripped circuit breaker.

Dying Gasp

The Cisco ASR 903 Router DC power supply supports the Dying Gasp feature, which allows the router to provide an input power loss notification to the RSP so that the RSP can send appropriate SNMP traps or OAM messages and update log files on the router. With the DC power supply, the router supports a minimum input power loss detection time of 2 milliseconds (DC) and continued operation of at least 6 milliseconds (DC) after the notification.

Note Continued DC power supply operation may vary for voltages other than +24/-48V.

Status LEDs

LEDs are also provided on each power supply to indicate the status of the input power and the health of the power supply. For more information about the LEDs on the Cisco ASR 903 Router, see Chapter 5, “Troubleshooting.”

DC Power Specifications

The Cisco ASR 903 Router uses a +24/-48 Volts Direct Current (VDC) (-19 to -72 VDC supply tolerance) power supply. The power supply provides 550 W output power for system 12 V power. The power supply is field replaceable, hot-swappable, and operates separately from the fan tray.

The power supply uses a three-position terminal block-style connector with labeled connections for ground, -24/48 V, and +24/48 V. The power supply contains a front panel with mounting screws, a handle for insertion and removal, and two status LEDs. No ON/OFF switch is provided.

Table 1-2summarizes the input power specifications for the Cisco ASR 903 Router DC power supply.

 

 

 

 

Table 1-2

DC Power Supply Specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Part number

 

A900-PWR550-D

 

 

 

 

 

 

 

 

 

 

 

Input power specification

+24/-48 VDC

 

 

 

 

 

 

 

 

 

 

 

 

Input voltage

 

-48/-60 VDC

 

 

 

 

 

 

 

 

 

 

 

Minimum input voltage

-19.2 VDC

 

 

 

 

 

 

 

 

 

 

 

Maximum input voltage

-72 VDC

 

 

 

 

 

 

 

 

 

 

 

Cisco ASR 903 Router Hardware Installation Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-4

 

 

 

 

OL-25178-04

 

 

 

 

 

 

 

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Contents Cisco ASR 903 Router Hardware Installation Guide Page N T E N T S Site Planning RSP Installation Pinouts Fan Tray LEDs Viii Document Audience Document Revision HistoryRevision Date Change Summary Document Organization Document ConventionsTitle Description Convention IndicationObtaining Documentation and Submitting a Service Request Xii Cisco ASR 903 Router Features Cisco ASR 903 Router OverviewSystem Specifications Cisco ASR 903 Router Chassis DesignPower Supply Features DC Power Specifications RedundancyDying Gasp Status LEDsAC Power Specifications Fan TrayRSP Modules 2shows the fan traySupported RSPs Supported RSP FeaturesRSP Redundancy RSP Interfaces Network Timing InterfacesLabel Interface Interface Modules Gigabit Ethernet SFP Interface ModuleGigabit Ethernet RJ45 Interface Module 8 x 1 GE Gigabit Ethernet RJ45 Copper Interface ModuleGigabit Ethernet XFP Interface Module 1 x 10 GE Gigabit Ethernet XFP Interface ModuleDWDM-XFP-C ONS-XC-10G-EP T1/E1 Interface Module 16 x T1/E1 Interface ModuleOC-3 Interface Module 8shows the interface moduleInterface Numbering Temperature SensorSerial Number Label Location Regulatory Compliance Cisco ASR 903 Router Overview Regulatory CompliancePreparing for Installation Safety GuidelinesStandard Warning Statements Safety Precautions for Module Installation and Removal Safety with Electricity Page OL-25178-04 Preparing for Installation Safety Guidelines Power Supply Considerations Preventing ESD DamageSite Planning Checklist General PrecautionsSite Planning Site Selection Guidelines Physical CharacteristicsEnvironmental Requirements Air Flow Guidelines Air exhaust Room airAir Flow Guidelines for Enclosed Rack Installation Site Power GuidelinesFloor Loading Considerations Electrical Circuit Requirements Site Cabling GuidelinesHardware components Asynchronous Terminal Connections Interference ConsiderationsRack-Mounting Guidelines Precautions for Rack-MountingRack Selection Guidelines Locating for Safety Equipment Rack GuidelinesLocating for Proper Airflow Installation Checklist Verified Task DateReceiving the Cisco ASR 903 Router Creating a Site LogChassis-Lifting Guidelines Tools and EquipmentUnpacking and Verifying the Shipped Contents Component Description Installing the Router in a Rack PrerequisitesInstalling the Chassis Brackets Attaching Mounting Brackets for a 19-inch EIA RackInstalling the Router Chassis in the Rack Installing the Chassis in a 19-inch EIA RackInstalling the Chassis in a 300 mm Etsi Cabinet Attaching the Cable Management BracketsInstalling the Chassis Ground Connection Grounding lug 300 mm Etsi cabinetStripping a Ground Wire 10 Crimping a Ground Lug onto the Ground Wire Installing the Fan Tray Removing and Replacing the Fan Tray12 Detaching the Fan Tray RSP Installation 13 Fan Tray RemovalInstalling an RSP Module 14 Cisco ASR 903 Router RSP InstallationRemoving an RSP Module Hot-Swapping an RSP Module Interface Module Installation Installing an Interface ModuleRemoving an Interface Module Hot-Swapping an Interface ModuleOL-25178-04 Installing the Power Supply Preventing Power LossGuidelines for DC-Powered Systems Power Connection GuidelinesGuidelines for AC-Powered Systems Installing the DC Power Supply Installing the DC Power Supply ModuleInstalling the Terminal Block 16 Installing the DC Power Supply17 DC Power Supply with Lead Wires 18 Torquing the DC Power Supply Terminal Block Plug Screws Activating the DC Power Supply Removing and Replacing the DC Power Supply Supply has been removed or replacedInstalling the AC power Supply Installing the AC Power Supply ModuleRemoving and Replacing the AC Power Supply Activating the AC Power SupplyConnecting the Cisco ASR 903 Router to the Network Connecting Console CablesConnecting to the Serial Port using Microsoft Windows 2404 Connecting to the Console Port using Linux Connecting to the Console Port using Mac OSTo disconnect the OS X USB console from the Terminal window Installing the Cisco Microsoft Windows USB Device Driver Installing the Cisco Microsoft Windows XP USB DriverUsing the Add Remove Programs Utility Uninstalling the Cisco Microsoft Windows USB DriverUsing the Setup.exe Program Connecting to the Auxiliary Port Uninstalling the Cisco Microsoft Windows Vista USB Driver23 Connecting a Modem to the Cisco ASR 903 Router Installing and Removing SFP and XFP Modules Connecting a Management Ethernet CableConnecting a USB Flash Device Connecting Cables to the Bits Interface Connecting Timing CablesRemoving a USB Flash Device OL-25178-04 Connecting Cables to a GPS Interface Connecting Cables to the Input 10Mhz or 1PPS InterfaceConnecting Ethernet Cables Connecting T1/E1 cables Connecting Cables to SFP ModulesInstalling the Cable Connector Connecting Cables to the Patch Panel RJ45 Cable PinoutsConnecting the Fan Tray Alarm Port Recommended Patch PanelConnector and Cable Specifications OL-25178-04 Cisco ASR 903 Router Initial Configuration Checking Conditions Prior to System StartupPowering Up the Cisco ASR 903 Router Example 4-1 Loading the Default System Boot ImageCisco ASR 903 Router Hardware Installation Guide OL-25178-04 CPP Configuring the Cisco ASR 903 Router at Startup Verifying the Hardware ConfigurationVerifying the Front Panel LEDs Checking Hardware and Software CompatibilityUsing the Console Interface Configuring Global ParametersChecking the Running Configuration Settings Saving the Running Configuration to NvramSafely Powering Off the Cisco ASR 903 Router Pinouts Pin Signal Name Direction DescriptionBits Port Pinout Time of Day Port Pinout GPS Port PinoutMhz input and output 1PPS input and output Pin Signal Name Description Alarm Port PinoutConsole/Aux RJ45 RS232 Serial Port Pinout Board Telco Line Pins Signal Name Jack Pin Telco RX T1/E1 Port PinoutManagement Ethernet Port Pinout USB Console Port Pinout Fiber-Optic SpecificationsUSB Flash/MEM Port Pinout RSP LEDs LED SummaryColor/State Description two LEDs for eachT1/E1 port Interface Module LEDs Color/State DescriptionOC-3 Interface Module LEDs T1/E1 Interface Module LEDsPower Supply LEDs Fan Tray LEDsAlarm Conditions Alarm Type Alarm MeaningOL-25178-04 Site Log Date InitialsD E IN-2
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