Front Panel LED Status Indicator Functions | Cisco Systems 4027673

Front Panel LED Status Indicator Functions

Front Panel LED Status Indicator Functions

Initial Power Up, Calibration, and Registration

The following chart illustrates the sequence of steps and the corresponding appearance of the cable modem front panel LED status indicators during power-up, calibration, and registration on the network. Use this chart to troubleshoot the power up, calibration, and registration process of your cable modem.

Note: After the cable modem completes step 8 (Registration Complete), the modem proceeds immediately to step 9, Normal Operations. See the table in Normal Operations (on page 33).

Front Panel LED Status Indicators During Initial Power-Up, Calibration, and Registration

Step		1	2	3	4	5	6	7	8

Front Panel		Power	Self	Downstream	Downstream	Ranging	Requesting	Registering	Registration
Indicator		Up	Test	Scan	Signal Lock		IP Address		Complete
1	POWER	On	On	On	On	On	On	On	On

2	DS	Blinks	On	Blinks	On	On	On	On	On
			1 sec
3	US	Blinks	On	Off	Off	Blinks	On	On	On
			1 sec
4	ONLINE	Blinks	On	Off	Off	Off	Off	Blinks	On
			1 sec
5	LINK	Off	On	Off - When no devices are connected to the Ethernet or USB ports					On
			1 sec	On - When devices are connected to the Ethernet or USB ports
				Blinks - When data activity is present

32	4030802 Rev A

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Cisco Systems 4027673 Front Panel LED Status Indicator Functions, Initial Power Up, Calibration, and Registration

Contents

Important Safety Instructions This Document Important Safety Instructions Mitteilung für CATV-Techniker Aviso a los instaladores de sistemas Catv Power Source Warning Protect from Exposure to Moisture and Foreign Objects Verify the Power Source from the On/Off Power LightGround the Product Protect the Product from Lightning Service Warnings Check Product Safety Protect the Product When Moving It FCC Compliance United States FCC ComplianceDeclaration of Conformity Canada EMI Regulation CE Compliance CEModem/EMTA Benefits and Features Introducing the DPC3010 and EPC3010Home Networking Performance Design and Function Management Whats in the Carton? Front Panel Description Back Panel Description What Are the System Requirements for Internet Service? Minimum System Requirements for a PCMinimum System Requirements for Macintosh System Requirements for an Ethernet Connection Already Have an Existing High-Speed Internet Access Account How Do I Set Up My High-Speed Internet Access Account?Do Not Have a High-Speed Internet Access Account Where Is the Best Location for My Cable Modem? Mounting Instructions How Do I Mount the Cable Modem on the Wall?Before You Begin Location and Dimensions of the Wall-Mounting Slots Wall Mounting Instructions To connect devices Connecting and Installing Internet DevicesHow Do I Connect My Devices to Use the Internet? Connecting the Cable Modem for High-Speed Data Service Connecting the Cable Modem for High-Speed Data Service Installing USB Drivers Installing USB DriverInstalling USB Drivers Installing USB Drivers on Windows XP Systems Configuring TCP/IP on Windows 95, 98, 98SE, or ME Systems Frequently Asked QuestionsHow Do I Configure TCP/IP Protocol? Configuring TCP/IP on Macintosh Systems Configuring TCP/IP on Windows 2000 SystemsConfiguring TCP/IP on Windows XP Systems How Do I Renew the IP Address on My PC? How do I arrange for installation? Renewing the IP Address on Windows NT, 2000, or XP SystemsWhat if I dont subscribe to cable TV? How does the cable modem connect to my computer? Common Troubleshooting Issues Dont understand the front panel status indicatorsCan I run more than one device on the modem? Cable modem does not register an Ethernet connection Tips for Improved Performance Check and Correct Front Panel LED Status Indicator Functions Initial Power Up, Calibration, and Registration Power Online Link Normal Operations Front Panel LED Status Indicators During Special Conditions Special Conditions Trademarks DisclaimerDocumentation Copyright Notice Software and Firmware Use Notice For Information If You Have Questions