PMP Synchronization Solutions User Guide
Configuring a CMM4
PMP-0297 007v001 (January, 2017)
3-35
The CMM4 Configuration tab provides the following parameters.
Table 16 CMM tab attributes
Attribute
Meaning
Session Timeout
Enter the expiry in seconds for remote management sessions via
HTTP, telnet, or ftp access to the CMM4 up to a maximum of 2592000
seconds.
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.
Ethernet Switch Power
If you change this value and then click Save Changes, the change
becomes effective immediately and the previous value is lost.
Sync Source
Specify how the CMM4 should receive timing, either
◦
Master (GPS Module)
◦
Slave (RJ11 Port)
For additional information on using the Slave sync source, page
Verify GPS Message
Checksum
When enabled, 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.
