CB3000 Client Bridge User Guide
1-2
provide a reliable transport mechanism. The CB3000 can initiate a permanent client connection to your server
or accept datagrams from multiple sources. Use the CB3000 to network devices that do not have a PC Card slot
or PCI card slot (printers, scanners, Internet appliances etc.).
The CB3000 uses frequency modulation to transmit digital data to the devices within its own subnet. The
transmission begins with a carrier signal that provides the center frequency. The digital data is superimposed
on the carrier signal (modulation). The radio signal propagates into the air as electromagnetic waves.
The receiving antenna, in the path of the airwaves, absorbs the waves as electric signals. The receiving device
demodulates the signal by removing the carrier signal. The CB3000 uses the environment as a transmission
medium. The CB3000 is able to utilize both 2.4 and 5.2 GHz frequency ranges.
1.1.1 Within the Network
A CB3000 establishes an average communication range with its associated device(s) called a Basic Service
Set (BSS) or cell. When in a particular cell, the devices can locate and communicate with the CB3000. Each
cell has a basic service set identifier (BSS_ID). In IEEE 802.11, the CB3000 MAC address represents the
BSS_ID.
Figure 1.1 CB3000 within the Network
The CB3000 appears as an individual mobile unit to an associated access point when operating in
Infrastructure mode. For more information on CB3000 Infrastructure mode operation, see Infrastructure Mode
on page 1-3.
1.1.2 Feature Summary
The CB3000 Client Bridge has the following feature set:
• Device driver free installation
• Multi-functional status LEDs
• Updatable device firmware
• IEEE 802.11a/b/g device interoperability
• Automatic rate selection
• Robust statistical displays
• Advanced event logging capabilities
• Configuration file import/export capability
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