User guide

Canopy System User Guide Configuring an AP for the Destination
pmp-0229 (Mar 2013)
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• Select Generate Sync Signal where the AP does not receive sync, and no other AP or BHM
is active within the link range.
Verify GPS Message Checksum
When enabled (Sync Input “Sync to Received Signal (Timing Port)” must be selected for this
parameter to display), the device validates GPS messaging to ensure that the radio is properly
receiving data from the GPS source. If a GPS source is not calculating and sending checksum
data properly, the AP will still receive synchronization pulses but not GPS data (location, data,
etc.) and the Invalid Message counter will increase on the radio’s Home > GPS Status page. If an
AP is receiving synchronization properly from a GPS unit but is not receiving GPS data, operators
may set Verify GPS Message Checksum to “Disabled” to ignore checksum failures and to allow
the AP to process the GPS data.
Region Code
From the drop-down list, select the region in which the radio is operating.
When the appropriate region is selected in this parameter, the radio automatically implements the
applicable required Dynamic Frequency Selection (DFS) standard. For further information on
DFS, see Radar Signature Detection and Shutdown on Page 127.
Unlike selections in other parameters, your Region Code selection requires a Save Changes and a
Reboot cycle before it will force the context-sensitive GUI to display related options (for
example, Alternate Frequency Carrier 1 and 2 in the Configuration => Radio tab). Thus, a
proper configuration exercise in environments that are subject to DFS requirements has two
imperative Save Changes and Reboot cycles: one after the Region Code is set, and a second after
related options are set.
Webpage Auto Update
Enter the frequency (in seconds) for the web browser to automatically refresh the web-based
interface. The default setting is 0. The 0 setting causes the web-based interface to never be
automatically refreshed.
Bridge Entry Timeout
Specify the appropriate bridge timeout for correct network operation with the existing network
infrastructure. The Bridge Entry Timeout should be a longer period than the ARP (Address
Resolution Protocol) cache timeout of the router that feeds the network.
CAUTION!
An inappropriately low Bridge Entry Timeout setting may lead to temporary loss
of communication with some end users.