Cisco Dpq3925x User Manual

4021193 Rev C  21 
 
 How Do I Subscribe to High-Speed Internet and Telephone Service? 
 
I Already Have an Existing High-Speed Internet Access Account 
If you have an existing high-speed Internet access account, you must give your 
service provider the serial number and the MAC address of the residential gateway. 
Refer to the serial number and MAC address information listed previously in this 
section. 
I Want to Use the Application Server for Telephone Service 
You will also need to set up a telephone...

22  4021193 Rev C 
 
Where Is the Best Location for My DOCSIS Residential Gateway? 
 
Where Is the Best Location for My DOCSIS Residential 
Gateway? 
The ideal location for your residential gateway is where it has access to outlets and 
other devices. Think about the layout of your home or office, and consult with your 
service provider to select the best location for your residential gateway. Read this 
user guide thoroughly before you decide where to place your residential gateway. 
Consider these...

4021193 Rev C  23 
 
 How Do I Mount the Modem on a Wall? (Optional) 
 
How Do I Mount the Modem on a Wall? (Optional) 
You can mount the residential gateway on a wall using two wall anchors, two 
screws, and the mounting slots located on the unit. The modem can be mounted 
vertically or horizontally.  
Before You Begin 
Before you begin, choose an appropriate mounting place. The wall can be made of 
cement, wood, or drywall. The mounting location should be free of obstructions on 
all sides, and the...

24  4021193 Rev C 
 
How Do I Mount the Modem on a Wall? (Optional) 
 
 
  
Location and Dimensions of the Wall-Mounting Slots 
The following illustration shows the location and dimensions of the wall-mounting 
slots on the bottom of the modem. Use the information on this page as a guide for 
mounting your modem to the wall. 
 
   

4021193 Rev C  25 
 
 How Do I Mount the Modem on a Wall? (Optional) 
 
Mounting the Residential Gateway 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 residential gateway. 
2 Are you mounting the residential gateway 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...

26  4021193 Rev C 
 
What Are the Requirements for Telephone Service? 
 
What Are the Requirements for Telephone Service? 
Number of Telephone Devices 
The RJ-11 telephone-style connectors on the residential gateway can each provide 
telephone service to multiple telephones, fax machines, and analog modems.  
The maximum number of telephone devices connected to each RJ-11 port is limited 
by the total Ringing Load of the telephone devices that are connected. Many 
telephone devices are marked with a...

4021193 Rev C  27 
 
 How Do I Connect My Gateway for Internet and Telephone Service? 
 
How Do I Connect My Gateway for Internet and Telephone 
Service? 
You can use your residential gateway to provide both telephone service and to 
provide Internet access, and you can share that Internet connection with other 
Internet devices in your home or office. Sharing one connection among many 
devices is called networking. 
Connecting and Installing Internet Devices 
Professional installation may be available....

28  4021193 Rev C 
 
How Do I Connect My Gateway for Internet and Telephone Service? 
 
  WARNING: 
 To avoid personal injury, follow the installation instructions in the exact 
order shown. 
 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 ports on the 
residential gateway and can be present on any connected wiring including 
Ethernet wiring, telephone...

4021193 Rev C  29 
 
 How Do I Connect My Gateway for Internet and Telephone Service? 
 
5 Connect one end of a telephone jumper cable (not included) to a telephone outlet 
in your home or to a telephone or fax machine.  Then connect the other end of the 
jumper cable to the appropriate RJ-11 TELEPHONE port on the back of the 
residential gateway. The telephone ports are light gray and are labeled 1/2 and 2 
or 1 and 2 depending on the region of the world the residential gateway is used. 
Notes: 
– Make...

30  4021193 Rev C 
 
How Do I Maintain the Battery? 
 
How Do I Maintain the Battery? 
Your modem includes a rechargeable Lithium-Ion battery to provide stand-by 
operation in the event of an AC power failure. You can replace the battery without 
the use of any tools.  
 WARNING: 
Fully charged high-capacity rechargeable batteries should be handled with 
care. Replace only with the battery recommended by the manufacturer. Do not 
disassemble it or attempt to recharge the battery outside the system. Do...