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Chapter 2: System hardware
GPS synchronization
Page
2-52
GPS synchronization
GPS synchronization description
Cambium offers GPS synchronization to limit the network’s own self-interference. The Cluster
Management CMM provides Global Positioning System (GPS) synchronization to the Access Point (AP)
and all associated Subscriber Modules (SM). Network operators have a choice of UGPS and CMM
solutions to select the option that works best for the environment.
Universal GPS (UGPS)
The UGPS provides network synchronization for smaller networks where a CMM may not be cost
effective. The UGPS provides synchronization for one or two modules so that even remote areas at the
edge of the network can operate with synchronization for improved performance. The UGPS works with
all Cambium PMP radios. The UGPS has a small footprint and is easy to deploy.
Figure 34 UGPS
Note
PMP 450/450i/450m Series - APs can power up a UGPS via the Aux/Timing port.
Note
PMP 450i/450b/450m Series - If two units are to get sync from the UGPS, then an
external power supply is required.
If the GPS position information is required to be visible on the web GUI, then the UGPS
power must be enabled on the AP; and it is safe to use both AP power and external power
for a single UGPS unit.
CMM5