Ericsson RBS 2106 Hardware Reference Manual page 369

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The DC/DC Converter is a phase-shifted, soft-switched, full-bridge converter
that converts the incoming 400 V DC to 24 V DC output voltage.
The output provides constant power regulation, rather than the more common
current limited, and delivers 1200 W over the whole output range from 22 to
29 V DC.

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The output voltage is filtered to prevent unwanted signals from being radiated
from the PSU.

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The control and supervision circuits support:
The output voltage can be adjusted between 22 to 29 V DC. The control and
supervision is achieved through an optical signal interface connector on the
front of the PSU.
Load sharing between parallel units
Remote on/off
Alarms
5(8)

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