Chapter 2: System hardware
Installing a GPS receiver
Page 2-53
Procedure 1 Mounting the GPS receiver
1
Ensure that the mounting position
has an unobstructed view of the sky to 20º above the horizon.
is not the highest object at the site. (The GPS antenna does not need to be
particularly high on a site, which would give it more exposure to lightning. It just
needs to have an unobstructed view of the sky.)
is not further than 100 feet (30.4 meters) of cable from the CMM.
2
Select a pole that has an outside diameter of 1.25 to 1.5 inches (3 to 4 cm) to which
the GPS antenna bracket can be mounted.
3
Place the U-bolts (provided) around the pole as shown in
Figure 28
.
4
Slide the GPS antenna bracket onto the U-bolts.
5
Slide the ring washers (provided) onto the U-bolts.
6
Slide the lock washers (provided) onto the U-bolts.
7
Use the nuts (provided) to securely fasten the bracket to the U-bolts.
Please refer to the
PMP Synchronization Solutions User Guide
located on the Cambium website
(
http://www.cambiumnetworks.com/resources/pmp-synchronization-solutions
).
Cabling the GPS Antenna
Connect the GPS coax cable to the female N-connector on the GPS antenna. Please refer to the
PMP Synchronization Solutions User Guide
located on the Cambium website
(
http://www.cambiumnetworks.com/resources/pmp-synchronization-solutions
).
Installing and connecting the GPS LPU
Install and ground the GPS drop cable LPU at the building (or cabinet) entry point, as described in
Install the bottom LPU
on page
6-20
.
Summary of Contents for PMP 450 Series
Page 125: ...Chapter 3 System planning Typical deployment Page 3 3 Figure 37 Wall installation...
Page 126: ...Chapter 3 System planning Typical deployment Page 3 4 Figure 38 Roof installation...
Page 127: ...Chapter 3 System planning Typical deployment Page 3 5 Figure 39 GPS receiver wall installation...
