10 
D3G0804W User Manual 
Connecting the WAN 
To connect your Gateway to a Wide Area Network (WAN) interface: 
1. Connect a coaxial cable from a cable port in your home or office to the port labeled 
CABLE
on the 
rear panel of the Gateway (see Figure 2 on page 5). Use only manufactured coaxial patch cables 
with F-type connectors at both ends for all connections. 
2. Hand-tighten the connectors to secure the connection. 
3. If the modem was not installed by your cable provider (ISP) or is replacing another cable modem, 
contact your cable operator to register the Gateway. If the modem is not registered with your cable 
operator, it will not be able to connect to the cable network system. 
Powering on the Gateway 
After making your LAN and WAN connections, use the following procedure to power on the Gateway. 
1. Connect the supplied power cord to the port labeled 
POWER
on the rear panel of the Gateway (see 
Figure 2 on page 5). 
2. Connect the other end of the power cord to a working DC power outlet. The outlet should not be 
controlled by a wall switch to avoid someone unknowingly turning off power to the outlet. 
3. Press the 
ON/OFF
button on the front panel of the Gateway (see Figure 1 on page 3). The Gateway 
powers on automatically. The 
POWER
LED on the front panel goes ON and the other front panel 
LEDs show the Gateway’s status. 
WARNING:
Only use the power supply furnished with the Gateway. Using a different power 
supply can damage your Gateway and void the warranty.