Motorola SBV5121 用户手册

Installation

Troubleshooting

Glossary

   

You will need 75-ohm 

with 

 to connect your VoIP cable modem to the nearest 

cable outlet. If a TV is connected to the cable outlet, you may need a 5-900 MHz RF 

 and a total of three 

coaxial cables to connect both the TV and the VoIP cable modem. The coaxial cable and RF splitter are available 
at consumer electronic stores. To connect your VoIP cable modem to an Ethernet hub, see the network 
description in 

 on page 33. Check the documentation provided with your hub.

Postpone VoIP cable modem installation until there is no risk of thunderstorm or lightning activity in the area. 

To avoid damaging the VoIP cable modem with static electricity:

•

Always first connect the coaxial cable to the grounded cable TV wall outlet.

•

Before you connect or disconnect the USB or Ethernet cable from your VoIP cable modem or PC, always 

touch the coaxial cable connector on the VoIP cable modem to release any static charges.

To prevent overheating the VoIP cable modem, do not block the ventilation holes.

Do not open the VoIP cable modem. Refer all service to your cable provider.

Wipe the VoIP cable modem with a clean, dry cloth. Never use cleaning fluid or similar chemicals. Do not spray 
cleaners directly on the unit or use forced air to remove dust.

This product is for indoor use only. Do not route the USB, Ethernet, or telephone cables outside of the 
building. Exposure of the cables to lightning could create a safety hazard and damage the product. 

Contact your cable provider before connecting your VoIP cable modem to your existing telephone wiring. 
Do not connect the telephone wire to a traditional telephone (

) service.

CABLE

+12VDC

USB

TEL

 2

TEL

 1

ETHERNET

Before you connect or

disconnect the USB or

Ethernet cable, touch the

the VoIP cable modem.