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Motorola SB5101 Cable Modem

Last Updated: Tue, 02 Apr 2013 > Related Articles

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Summary

Learn about the available ports and the status lights on a Motorola SB5101 cable modem.

Solution


Installation

If you need help setting up your cable modem, refer to the following articles.


The Motorola SB5101 is a DOCSIS 2.0 cable modem.

Front View

After the cable modem has successfully registered on the network, the Power, Receive, Send, and Online indicators illuminate continuously to indicate that the cable modem is online and fully operational. For more details, refer to the Modem Lights section.

Back View

There are two models of the Motorola SB5101

The Motorola SB5101N has the following ports available on the back of the modem:

  • ETHERNET - Connects to the Ethernet port on your computer.
  • CABLE - Connects to the cable wall outlet.
  • POWER - Connects the cable modem to the power adapter.

The Motorola SB5101U has the following ports available on the back of the modem:

  • ETHERNET - Connects to the Ethernet port on your computer.
  • USB - Connects to the USB port on your computer.
  • CABLE - Connects to the cable wall outlet.
  • POWER - Connects the cable modem to the power adapter.

Modem Lights

The modem lights indicate the current status of your cable modem. To troubleshoot any connection problems, use the table below.

Modem LightStatusProblemSolution
POWERSolid GreenNone.N/A
OffNo power.Verify power supply connections, the power switch on the modem itself, the electrical outlet, and make sure the outlet is not connected to a switch.
RECEIVESolid GreenNoneN/A
FlashingNone. Searching for a downstream cable connection.N/A
OffNo cable connection.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
SENDSolid GreenNoneN/A
FlashingNone. Searching for an upstream cable connectionN/A
OffNo cable connectionVerify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
ONLINESolid GreenNone.N/A
FlashingNone. Scanning for an Internet connection; transmitting or receiving data over the Internet.N/A
OffNo connectionVerify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.
ACTIVITYSolid AmberNone. A single device is connected to either the Ethernet or USB port and no data is being sent to or from the modem.N/A
FlashingNone. LAN activity; transmitting or receiving dataN/A
OffNo devices connected.Verify all cable connections and try resetting the modem. If cable is OK and modem reset does not work, contact Customer Support.

MAC Address Label

MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F). A MAC address is unique. The first six characters of the MAC address are unique to the manufacturer of the device.

Manufacturer Resources


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