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General| Model | SB6121 |
|---|---|
| Category | Modem |
| DOCSIS Version | 3.0 |
| Max Download Speed | 172 Mbps |
| Max Upload Speed | 131 Mbps |
| Ethernet Ports | 1 |
| Channel Bonding | 4 downstream, 4 upstream |
| Compatible ISPs | Comcast XFINITY, Cox, Charter Spectrum (check with your ISP to confirm) |
| Compatibility | Windows, Macintosh, Linux |
Essential safety precautions for operating the device.
Compliance and interference information related to FCC regulations.
Compliance and interference information related to Industry Canada regulations.
Lists and describes items included with the cable modem.
Provides Motorola support website for product inquiries.
Lists compatible operating systems for the SB6121.
Describes the icons and indicators on the front panel of the modem.
Details the ports and connectors on the rear of the modem.
Explains the location and purpose of the modem's MAC address label.
Step-by-step guide for physically connecting the cable modem.
How to use the power on/off switch for energy saving.
Instructions and requirements for mounting the modem on a wall.
Information on printing and using the template for wall mounting.
How to verify if the modem is connected to the internet.
Steps to configure TCP/IP settings for Windows 7.
Steps to configure TCP/IP settings for Windows Vista.
Steps to configure TCP/IP settings for Windows XP.
How to check the IP address configuration for Windows 7.
How to check the IP address configuration for Windows Vista.
How to check the IP address configuration for Windows XP.
Procedure to renew the IP address on various Windows versions.
Instructions to access and use the modem's web interface.
Guide on resetting the modem to its factory default configuration.
Common modem problems and their possible solutions.
Explains the meaning of front panel icons and error states.
Terms and conditions for using the modem's software.
Details regarding the product's limited warranty and service.
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