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Scientific Atlanta DPC2505TM, EPC2505TM Front Panel LED Status Indicator Functions, Initial Power Up, Calibration, and Registration

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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. See the chart in Normal Operations (on page 30).

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 1	Blinks	On	Blinks	On	On	On	On	On
			1 sec
	DS 2-3	Blinks	On 1	Off	Off	Off	Off	Off		On when
			sec							wideband
										operation is
										enabled on
										that channel
										Off when
										wideband
										operation is
										not available
										on that
										channel

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

4015259 Rev B

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Contents

In This Document IMPORTANT SAFETY INSTRUCTIONS Notice to Installers Notice à l’attention des installateurs de réseaux câblés Mitteilung für CATV-Techniker Aviso a los instaladores de sistemas CATV Heed All Warnings Read, Retain, and Follow These Instructions Comply with Warnings Power Warnings Usage Warnings Accessories Warnings Service Warnings Page FCC Compliance United States FCC Compliance Declaration of Conformity Canada EMI Regulation Introduction Benefits and Features What's in the Carton Front Panel Description Back Panel Description Where Is the Best Location for My Cable Modem What Are the System Requirements for Internet Service Minimum System Requirements for a PC Minimum System Requirements for Macintosh System Requirements for an Ethernet Connection System Requirements for a USB Connection How Do I Set Up My High-SpeedInternet Access Account I Do Not Have a High-SpeedInternet Access Account I Already Have an Existing High-SpeedInternet Access Account How Do I Connect My Devices to Use the Internet Connecting and Installing Internet Devices Connecting the Modem for High-SpeedData Service How Do I Configure TCP/IP Protocol Configuring TCP/IP on Your Internet Devices Page Page How Do I Install USB Drivers Installing USB Drivers Page How Do I Mount the Cable Modem on the Wall Before You Begin Mounting Instructions Location and Dimensions of the Wall-MountingSlots Wall Mounting Instructions Having Difficulty Frequently Asked Questions Common Troubleshooting Issues Tips for Improved Performance Check and Correct How Do I Renew the IP Address on My PC Renewing the IP address on Windows 95, 98, 98SE, and ME Systems Renewing the IP Address on Windows NT, 2000, or XP Systems Front Panel LED Status Indicator Functions Initial Power Up, Calibration, and Registration Normal Operations Special Conditions Notices Trademarks Disclaimer Documentation Copyright Notice Software Use Notice