Firmware release 5.00.03 provides the ability to determine whether the channel on which your client adapter will operate is clear prior to the transmission of data. This feature is selectable in ACU through the Clear Channel Assessment parameter on the RF Network screen. The following methods are available from the parameter's drop-down list in ACU:
Firmware Default (XXX) - The CCA mechanism reports that the channel is busy based on the default value of the client adapter's firmware. The firmware's CCA default value is shown in parentheses. For example, the CCA default value for PCM/LMC/PCI card firmware is Car/Cor, and the default value for mini PCI card firmware is ED.
Carrier/Correlation (Car/Cor) - The CCA mechanism reports that the channel is busy upon detection of a direct-sequence spread spectrum (DSSS) signal. This signal may be above or below the ED threshold.
Energy Detect (ED) - The CCA mechanism reports that the channel is busy upon detection of any energy above the ED threshold.
ED or Car/Cor - The CCA mechanism reports that the channel is busy upon detection of a DSSS signal or any energy above the ED threshold
