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Installing and Connecting the DDM3521 Ubee Interactive
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Ubee DDM3521 Cable Modem User Guide • February 2013
2.2 Installing the DDM3521
Install the DDM3521 by connecting it to a power supply, a computer, and the Internet
service. Subscribers must contact the Internet service provider (ISP) to enable Internet
access.
Steps
To install the DDM3521:
1. Verify service has been activated on the provisioning system before installing at the
customer premises. Contact your Network Operations Center (NOC) or headend for
instructions if service activation is not completed.
2. Remove the contents from the device packaging.
3. Place the DDM3521 in an optimal location to connect to other devices, such as PCs or
gaming consoles.
 Place the device in a location that has an operating temperature of 0 ˚ C to 40 ˚ C
(32 ˚ F to 104 ˚ F). Refer to Understanding Safety and Regulatory Information on page
1 for safety regulations.
4. Power on your PC. The PC must have an Ethernet network adapter or Ethernet port
and an Internet browser installed, such as Firefox or Internet Explorer. The following
browsers are supported:
 For Windows 2000, XP, Vista, Windows 7: Firefox 1.07 and higher, Internet
Explorer v7 and above, Netscape.
 For MAC OS X, 10.2, and higher: Firefox 1.07 and higher, Safari 1.x and higher.
5. Using the power supply included in the product package, connect the power cord to
the POWER outlet on the back of the modem and connect the other end into the
power outlet.
Use only the power adaptor shipped with this device. Failure to do so may cause
damage the device.
6. Using the Ethernet cable included in the product package, connect one end of the
Ethernet cable to your computer’s Ethernet port, and connect other end to the
ETHERNET port on the cable modem.
7. Connect the coaxial cable from the cable wall outlet or a cable splitter connected to
the cable wall outlet to the CABLE port on the device.
2.3 Connecting Devices to Your Network
Use the following sections to connect network devices and validate device functionality.
Topics
See the following topics:
 Connecting Ethernet Devices on page 13