User's Manual

6 68P80801H45-1 1/20/2002
DC Power Supply EBTS System Manual - Vol 2
DC Power Supply for QUAD Channel Base Radios
QUAD Channel DC Power Supply Controls and Indicators
Table 5 summarizes LED indications on the QUAD Channel DC Power Supply
during normal operation. The ON/OFF switch behind the front panel turns DC
power supply on and off.
QUAD Channel DC Power Supply Performance Specifications
Table 6 lists the specifications for the QUAD Channel DC Power Supply.
Table 5 DC Power Supply Indicators
LED Condition Indications
Green Solid (on) Power Supply is on, and operating under normal conditions with
no alarms
Off Power Supply is turned off or required power is not available
Red Solid (on) Power Supply fault or load fault on any output, or input voltage is
out of range
Off Power Supply is operating normally, with no alarms
Table 6
DC Power Supply Specifications
Description Value or Range
Operating Temperature 0° to +40° C (no derating)
+41° to +60° C (derating)
Input Voltage 41 to 60 VDC
Input Polarity Positive (+) ground system
Startup Voltage 43 VDC (minimum)
Input Current 18.0 A (maximum) @ 41 VDC
Steady State Output Voltages 28.6 VDC +5%
14.2 VDC +
5%
3.3 VDC +5%
Total Output Power Rating 575 W (no derating)
485 W (derating)
Output Ripple All outputs 150mV p-p (measured with
20 MHz BW oscilloscope at 25°C)
High Frequency individual harmonic voltage
limits (10kHz to 100MHz) are:
28.6 VDC 1.5 mV p-p
14.2 VDC 3.0 mV p-p
3.3 VDC 5.0 mV p-p
Short Circuit Current 0.5 A average (maximum)