Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
2 - 34 Product Description Issue 13 December 2000
Table 2-M: ES681 48/24V Converter Specifications
Nominal Output Voltage 24Vdc
Output Current 0 - 25 amperes
Nominal Input Voltage 48/52/54.5Vac
Input Voltage Ranges 38 - 60Vdc
Input Current
13.1 amperes (Note 1)
19.0 amperes (Note 2)
Efficiency 84% typical @ 54.5Vdc
Output Voltage Regulation ±3.5%
Output Ripple
150 millivolts peak to peak maximum,
over the range 10 Hz to 20 MHz
Output Noise <32 dBrnc
Load Share Accuracy 2.5 amperes maximum
Heat Dissipation
114 watts (390 BTU/hr) maximum
(Note 1)
High-Voltage Shutdown 26.5Vdc
Operating Ambient
Temperature
-40°F to 149°F (-40°C to 65°C)
CPS plant can withstand temporary
fluctuations in temperature up to
167°F (75°C)
Note 1: Input current specified at input voltage of 54.5 volts, an
output of 24 volts and 24 amperes, and efficiency of 84%.
Note 2: Input current specified at input voltage of 38 volts, an output
of 24 volts and 25 amperes, and efficiency of 83%.