Cisco Router DPC3208 User Manual

 
 
 Installation Preparations 
 
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Note: Image not to scale. 
  
Mounting the Cable Modem on a Wall 
1 Using a drill with a 3/16-inch bit, drill two holes at the same height and 4 inches 
apart. 
Note: The preceding graphic illustrates the location of the mounting holes on the 
back of the cable modem. 
2 Are you mounting the cable modem into a drywall or concrete surface where a 
wooden stud is available? 
 If yes, go to step 3. 
 If no, drive the anchor bolts into the wall, and...

 
Chapter 2    Installing the DOCSIS Cable Modem  
 
 
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Install the Cable Modem 
This section describes how to connect your cable modem to support the services that 
the cable modem offers.    
Connect Devices to the Cable Modem 
The following illustration shows all of the possible connections that can be made to 
your cable modem for various services. Although your model may not support all of 
the services pictured, you can determine which services your model supports by 
referring to...

 
 
 Install the Cable Modem 
 
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  WARNING: 
 To prevent possible damage to equipment, disconnect any other telephone 
service before connecting your cable modem to the same wires.  
 Hazardous electrical voltages can exist on the telephone, Ethernet, or coax 
cable wiring. Be sure to disconnect AC power from all devices while 
installing your service. 
 All wiring and connections must be properly insulated to prevent 
electrical shock.  
 Telephone connections to an installed home...

 
Chapter 2    Installing the DOCSIS Cable Modem  
 
 
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6 Locate the AC power adapter provided with your cable modem. Connect the 
barrel connector end of the power adapter into the power input on the back of 
the cable modem. Then, plug the AC power adapter into an AC outlet to power-
up the cable modem.  
Note: If your Cable Modem is equipped with a power switch (located on the 
back panel), make sure that the switch is in the ON position to power-up the 
Cable Modem.  
The cable modem...

 
 
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Introduction 
This section describes the behavior of the front panel indicators when 
the cable modem is first powered up, during normal operations, and 
in special conditions.  
 
 
3 Chapter 3 
Operation of Front Panel 
Indicators 
In This Chapter 
 Initial Power Up, Calibration, and Registration (AC Power 
applied) .................................................................................................. 22 
 Normal Operations (AC Power Applied)...

 
Chapter 3    Operation of Front Panel Indicators  
 
 
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Initial Power Up, Calibration, and Registration (AC 
Power applied) 
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 when AC power is applied to the cable 
modem. Use this chart to troubleshoot the power up, calibration, and registration 
process of your cable modem. 
Note:...

 
 
 Initial Power Up, Calibration, and Registration (AC Power applied) 
 
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5 LINK On or Blinking On or Blinking On or Blinking On or Blinking On or Blinking 
6 TEL 1 Off Blinking Off Blinking On 
7 TEL 2 Off Off Blinking Blinking On 
8 BATTERY  On – When battery is charged 
 Blinks – When battery charge is low 
 Off – When there is no battery in the unit 
 
  

 
Chapter 3    Operation of Front Panel Indicators  
 
 
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Normal Operations (AC Power Applied) 
The following chart illustrates the appearance of the cable modem 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 LINK  On - When the wireless access point is enabled and 
operational 
 Blinks...

 
 
 Special Conditions 
 
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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 
(once per second) 
2 DS Slow Blinking 
(once per second) 
3 US Slow Blinking 
(once per second) 
4 ONLINE Slow Blinking 
(once per...