User guide
Building Your Canopy Network March 2005
Through Software Release 6.1
Issue 1 Page 247 of 425
Canopy System User Guide
You may set the following Configuration page parameters.
Timing Mode
Select Timing Slave. This BH will receive sync from another source. Whenever you
toggle this parameter to Timing Slave from Timing Master, you should also do the
following:
1. Make no other changes in this or any other interface page.
2. Save this change of timing mode.
3. Reboot the BH.
RESULT: The set of interface web pages that is unique to a BHS is made available.
Modulation Scheme
This parameter is available for only the 20-Mbps BH. You can specify in this parameter
whether to use this 20-Mbps BH as a 10-Mbps BH.
Link Negotiation Speeds
Specify the type of link speed for the Ethernet connection. The default for this parameter
is that all speeds are selected. The recommended setting is a single speed selection for
all APs, BHs, and SMs in the operator network.
Custom RF Frequency Scan Selection List
Specify the frequency that the BHS should scan to find the BHM. The frequency band of
the BHs affects what channels you select.
IMPORTANT!
In the 2.4-GHz frequency band, the BHS can register to a BHM that
transmits on a frequency 2.5 MHz higher than the frequency that the SM
receiver locks when the scan terminates as successful. This establishes
a poor-quality link. To prevent this, select frequencies that are at least
5 MHz apart.
In a 2.4-GHz BHS, this parameter displays all available channels, but has only three
recommended channels selected by default. See 2.4-GHz AP Cluster Recommended
Channels on Page 101.
In a 5.2- or 5.4-GHz BHS, this parameter displays only ISM frequencies. In a 5.7-GHz
BHS, this parameter displays both ISM and U-NII frequencies. If you select all
frequencies that are listed (default selections), then the module scans for a signal on any
channel. If you select only one, then the module limits the scan to that channel. Since the
frequencies that this parameter offers for each of these two bands are 5 MHz apart, a
scan of all channels does not risk establishment of a poor-quality link as in the 2.4-GHz
band. Nevertheless, this can risk establishment of a link to the wrong BHM.