Cambium Networks Force 4525 User Manual

Chapter 2: System Hardware
90
The effect on device startup time at various temperatures is defined in Table 33
Table 33 Force 300-25 startup times based on ambient temperature
Initial Temperature
Startup time (from power on to operational)
-22°F (-30°C) H
20 minutes
-4°F (-20°C)
6 minutes
14°F (-10°C)
2 minutes, 30 seconds
Force 300-25 wind loading
Ensure that the device and the structure on which it is mounted are capable of withstanding the
prevalent wind speeds at a proposed ePMP site. Wind speed statistics are available from national
meteorological offices.
The device and its mounting bracket are capable of withstanding wind speeds of up to 200 kph
(124 mph).
Wind blowing on the device will subject the mounting structure to significant lateral force. The
magnitude of the force depends on both wind strength and the surface area of the device. Wind loading
is estimated using the following formulae:
Force (in kilograms) = 0.1045aV
2
Where:
Is:
a
the surface area in square meters
V
wind speed in meters per second
Force (in pounds) = 0.0042Av
2
Where:
Is:
A
the surface area in square feet
v
wind speed in miles per hour
Applying these formulae to the ePMP device at different wind speeds, the resulting wind loadings are
shown in Table 34 and Table 35.
Table 34 Force 300-25 wind loading (Kg)
Type of ePMP device
Largest
surface area (square meters)
Wind speed (meters per second)
40
50
60
Force 300-25 Integrated
0.15
25.08 Kg
39.2 Kg
56.43 Kg
Table 35 Force 300-25 wind loading (lb)
Type of ePMP device
Largest surface area (square feet)
Wind speed (miles per hour)
80
100
120
Force 300-25 Integrated
1.61
43.28 lb
67.62 lb
97.37 lb

Cambium Networks Force 4525 Specifications

General

Brand	Cambium Networks
Model	Force 4525
Category	Network Hardware
Language	English