Cisco Systems MWR 1900 manual Color Description

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Appendix A Troubleshooting

Reading the LEDs

Table A-3 VWIC LEDs

LED	Color	Description

Loopback	Amber	A loopback or line state is detected or is manually set by the user.

	Off	Normal operation.

Alarm	Amber	A local or remote alarm state.

	Off	Normal operation.

Carrier Detect	Green	A carrier has been detected and the internal DSU/CSU in the WAN
		interface card is communicating with another DSU/CSU. This LED is on
		during normal operation.

	Off	No carrier has been detected.

Note In a redundant configuration, when the relays of the VWIC open, the Carrier Detect LED on the T1 ports will remain lit and the Alarm LED will also come on. Therefore, the inactive router will show both the Carrier Detect light and the Alarm light, while the active router will show only the Carrier Detect light.

Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide

	78-13982-02	A-5

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Contents Customer Order Number DOC-7813982= Text Part Number Corporate HeadquartersCopyright 2002 Cisco Systems, Inc All rights reserved Obtaining Documentation Hardware FeaturesPreparing to Install the Router Safety Recommendations Safety with ElectricityConsole Port What to Do After Installing the HardwareProblem Solving Console Port ConnectionsChapter Title Description ObjectivesAudience OrganizationConvention Description ConventionsQuesto dispositivo Määräysten noudattaminen ja tietoa turvallisuudestaWarnung AvvertenzaWorld Wide Web Obtaining Documentation¡Advertencia Varning Cisco.com Obtaining Technical AssistanceOrdering Documentation Documentation FeedbackTechnical Assistance Center Contacting TAC by Using the Cisco TAC WebsiteContacting TAC by Telephone Primary Use of the MWR Overview of the Cisco MWR 1900 RouterMWR 1900 in an IP-RAN Solution Hardware FeaturesFront Panel of the Cisco MWR 1900 Router Voice/WAN Interface Cards Fast Ethernet InterfacesSpecification Overview of Cisco MWR 1900 Power SuppliesCompact Flash Regulatory Compliance Environmental Monitoring Temperature SensorSystem Specifications Description SpecificationSafety Recommendations Preparing to Install the RouterSafety with Electricity General Site Requirements Creating a Site Log Inspecting the RouterTask Verified by Date Installation ChecklistConsole Port Connections Console and Auxiliary Port ConsiderationsAuxiliary Port Connections Rack Mounting the Chassis Installing the RouterAttaching the Brackets Connecting the Console Terminal and ModemInstalling the Router in the Rack Installing a T1/E1 Multiflex VwicConsole Port Identifying a Rollover CableConnecting the FE Interface Cables Connecting the Network CablesAuxiliary Port Pin Description Connecting the Vwic Interface CablesPin Cable SpecificationsRequired Tools and Equipment Connecting the MWR 1900 Router to a DC-Input Power SupplyGrounding the Router Powering On the Router Wiring the DC-Input Power SourceReplacing or Upgrading the CF Removing a CF Memory Card from an External Slot Installing a CF Memory Card in an External SlotCopy Files Formatting Procedures for CF Memory CardsFile and Directory Procedures Formatting CF Memory as a DOS File SystemDisplay Geometry and Format Information Display the Contents of a CF CardRename a File in Flash Delete Files from FlashCreate a New Directory Display File ContentRemove a Directory What to Do After Installing the HardwareEnter a Directory and Determine the Current Directory Problem Solving TroubleshootingEnvironmental Reporting Features Troubleshooting the Power and Cooling SystemsReading the LEDs Troubleshooting Modules, Cables, and ConnectionsCarrier detect G Color StatusColor Description Page Numerics IN-2 IN-3 IN-4