CALAMP WIRELESS NETWORKS INC. BDP4-EXCT769 Manual De Usuario
001-2019-500 Rev 0
Paragon4 – UHF, 700 & 800MHz User Manual
8
Figure 6 – Simple AC-to-DC power supply configurations: Virtual rack-mount installation
Normally used at room ambient temperatures, the ICT22012-70N can operate within its specifications
over a range of -30 to +52 °C. Although it is a high efficiency switched mode power supply, a considera-
ble amount of heat is generated during normal operation. While in use, ensure that an adequate flow of
cooling air is able to circulate around the power supply, and that the air intake vents on the sides of the
unit are not inadvertently covered.
over a range of -30 to +52 °C. Although it is a high efficiency switched mode power supply, a considera-
ble amount of heat is generated during normal operation. While in use, ensure that an adequate flow of
cooling air is able to circulate around the power supply, and that the air intake vents on the sides of the
unit are not inadvertently covered.
Caution:
Do not operate this unit in a completely enclosed cabinet.
4.4.2 ICT22012-70N DC Power Supply
The rack-mounted ICT 22012-70N power system components used consist of a backplane and two (-70
model) modules. Each provides 450 watts of continuous DC power. The system is designed with active
sharing technology to distribute the load current among the modules. Each module is equipped with a
high power Schottky OR-ing diode for true redundancy. If a module failure occurs, the other module(s)
will continue to supply power.
model) modules. Each provides 450 watts of continuous DC power. The system is designed with active
sharing technology to distribute the load current among the modules. Each module is equipped with a
high power Schottky OR-ing diode for true redundancy. If a module failure occurs, the other module(s)
will continue to supply power.
Each unit is protected in several ways:
Fuse against over current on the AC input.
Current Limit and Foldback – Prevents the load from drawing current above the maximum al-
lowed value.
Sudden energy surges on each module – Thermistor against inrush current.