Cisco Dpq3925x User Manual

4021193 Rev C  101 
 
 Tips for Improved Performance 
 
Tips for Improved Performance 
Check and Correct 
If your residential gateway does not perform as expected, the following tips may 
help. If you need further assistance, contact your service provider. 
 Verify that the plug to your residential gateway AC power is properly inserted 
into an electrical outlet. 
 Verify that your residential gateway AC power cord is not plugged into an 
electrical outlet that is controlled by a wall switch. If a wall...

102  4021193 Rev C 
 
Front Panel LED Status Indicator Functions 
 
Front Panel LED Status Indicator Functions 
Initial Power Up, Calibration, and Registration (AC Power applied) 
The following chart illustrates the sequence of steps and the corresponding 
appearance of the residential gateway front panel LED status indicators during 
power up, calibration, and registration on the network when AC power is applied to 
the residential gateway. Use this chart to troubleshoot the power up, calibration, and...

4021193 Rev C  103 
 
 Front Panel LED Status Indicator Functions 
 
 
Front Panel LED Status Indicators During Initial Power Up, Calibration, and Registration 
Part 2, Telephone Registration 
Step 7 8 9 10 11 
Front Panel Indicator Data Network Registration Complete 
Requesting Telephone IP Address 
Request Telephone Provisioning File 
Restarting Voice Service Telephone Registration Complete 
1 POWER On On On On On 
2 DS On On On On On 
3 US On On On On On 
4 ONLINE On On On On On 
5 ETHERNET 1 – 4 On...

104  4021193 Rev C 
 
Front Panel LED Status Indicator Functions 
 
  
Normal Operations (AC Power applied) 
The following chart illustrates the appearance of the residential gateway front panel 
LED status indicators during normal operations when AC power is applied to the 
gateway.  
Front Panel LED Status Indicators During Normal Conditions 
Front Panel 
Indicator 
Normal Operations 
1 POWER On 
2 DS On 
3 US On 
4 ONLINE On 
5 ETHERNET 
1 - 4 
 On - When a single device is connected to the Ethernet...

4021193 Rev C  105 
 
 Front Panel LED Status Indicator Functions 
 
Special Conditions 
The following chart describes the appearance of the cable modem front panel LED 
status indicators during special conditions to show when you have been denied 
network access.  
Front Panel LED Status Indicators During Special Conditions 
Front Panel Indicator Network Access Denied 
1 POWER Slow Blinking 
1 time per second 
2 DS Slow Blinking 
1 time per second 
3 US Slow Blinking 
1 time per second 
4 ONLINE Slow...

106  4021193 Rev C 
 
Notices 
 
Notices 
Trademarks 
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its 
affiliates in the U.S. and other countries. A listing of Ciscos trademarks can be found 
at www.cisco.com/go/trademarks. 
DOCSIS is a registered trademark of Cable Television Laboratories, Inc. 
PacketCable is a trademark of Cable Television Laboratories, Inc. The Wi-Fi 
Protected Setup mark is a mark of the Wi-Fi Alliance. Wi-Fi Protected Setup is a 
trademark of...

4021193 Rev C  107 
 
 Notices 
 
The firmware in this equipment is protected by copyright law. You may only use the 
firmware in the equipment in which it is provided. Any reproduction or distribution 
of this firmware, or any portion of it, without our express written consent is 
prohibited. 
  

108  4021193 Rev C 
 
For Information 
 
For Information 
If You Have Questions 
If you have technical questions, call Cisco Services for assistance. Follow the menu 
options to speak with a service engineer.     

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
Cisco Systems, Inc.  
5030 Sugarloaf Parkway, Box 465447 
Lawrenceville, GA 30042  
 678 277-1120 
800 722-2009 
 www.cisco.com 
This document includes various trademarks of Cisco Systems, Inc. Please see the Notices 
section of this document for a list of the Cisco Systems, Inc., trademarks used in this 
document. 
Product and service availability are subject to change without notice. 
© 2010-2011, 2012 Cisco and/or its affiliates. All rights...