Overview Installation Troubleshooting Contact FAQ Specifications Glossary License

Configuration: Basic Gateway TCP/IP Wireless USB

port mirroring A feature that enables one port (source) on the SBG900 to be copied to another port (destination) to be studied. The destination mirrors the transmitted (from) or received (to) data on the source port to enable the person managing the network to monitor activity.

port triggering A mechanism that allows incoming communication with specified applications. Primarily used for gaming applications.

PPPPoint-to-Point Protocol is used to transport other protocols, typically for simple links over serial lines. It is most commonly used to access the Internet with a dial-up modem.

PPTP

Point-to-Point Tunneling Protocol encapsulates other protocols. It is a new technology to create VPNs

 

developed jointly by several vendors.

private IP

An IP address assigned to a computer on the SBG900 LAN by the DHCP server on the SBG900 for a

address

specified lease time. Private IP addresses are used by the SBG900 LAN only; they are invisible to

 

devices on the Internet. See also public IP address.

protocol

A formal set of rules and conventions for exchanging data. Different computer types (for example PC,

 

UNIX, or mainframe) can communicate if they support common protocols.

provisioning

The process of autodiscovery or manually configuring a cable modem on the CMTS.

PSTN

The public switched telephone network is the traditional circuit-switched, voice-oriented telephone

 

network. See also POTS.

public IP

The IP address assigned to the SBG900 by the cable service provider. A public IP address is visible to

address

devices on the Internet. See also private IP address.

Q

QAM

Quadrature Amplitude Modulation uses amplitude and phase modulation to encode multiple bits of

 

data in one signaling element. QAM achieves faster data transfer than amplitude or phase modulation

 

alone, but the signal is more prone to errors caused by noise. QAM requires a transmission circuit with

 

a higher CNR than alternate modulation formats such as QPSK. Two types of QAM are:

 

• 16 QAM encodes four bits per symbol as one of 16 possible amplitude and phase combinations.

 

• 64 QAM encodes six bits per symbol as one of 64 possible amplitude and phase combinations.

QPSK

Quadrature Phase Shift Key (QPSK) modulation sends two bits of information per symbol period with

 

one symbol 90 degrees out of phase with other symbols. The four constellation points represented by

 

the coordinates (0,0 - 0,1 - 1,0 - 1,1) represent the four possible combinations.

QoS

Quality of service describes the priority, delay, throughput, and bandwidth of a connection.

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SBG900 specifications

The Motorola SBG900 is a versatile and robust cable modem with built-in Wi-Fi capabilities, designed to meet the growing demands of modern internet usage. Catering to both residential and small office environments, the SBG900 combines a cable modem and a wireless router in one streamlined device, offering an efficient solution for networking needs.

One of the main features of the SBG900 is its DOCSIS 2.0 compliance, which allows for high-speed internet access with data transfer rates reaching up to 30 Mbps. This enables users to enjoy seamless streaming, online gaming, and quick downloads without interruptions. The device is also backward compatible with earlier DOCSIS standards, ensuring that it remains functional even with older cable networks.

Another notable aspect of the Motorola SBG900 is its built-in Wi-Fi capabilities. The device supports the IEEE 802.11b/g wireless standards, allowing for wireless speeds of up to 54 Mbps. This makes it easy to connect multiple devices throughout the home or office, including laptops, smartphones, tablets, and smart TVs. The wireless range is enhanced by its internal antennas, offering reliable connectivity in various locations within the premises.

Security is a critical consideration for any networking device, and the SBG900 addresses this need with multiple features. It comes equipped with Wi-Fi Protected Access (WPA/WPA2) and Wired Equivalent Privacy (WEP) encryption protocols, ensuring that both wired and wireless connections remain secure from unauthorized access. Furthermore, the device supports a built-in firewall, adding an extra layer of protection by controlling incoming and outgoing traffic.

The Motorola SBG900 also boasts a user-friendly web-based management interface, providing easy access to configuration settings and status monitoring. Users can effortlessly manage their network, set up parental controls, prioritize devices using Quality of Service (QoS), and perform firmware updates.

In summary, the Motorola SBG900 stands out as a reliable solution for users seeking a powerful cable modem with integrated Wi-Fi capabilities. With high-speed internet access, robust security features, and ease of management, it serves as an ideal choice for anyone looking to enhance their connectivity experience. Whether for gaming, streaming, or general internet browsing, the SBG900 delivers performance and reliability that users can count on.
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