Figure 3-15
Two stacked BTS3900 (AC) cabinets
3.3 Power System of the BTS3900
The BTS3900 supports 110 V AC, 220 V AC, and -48 V DC power supplies. When AC power
is supplied, the power is converted to -48 V DC power for the base station.
and
list the input voltage ranges supported by the BTS3900.
Table 3-8
Applicable AC input voltage ranges
Power Input Type
Rated Voltage
Working Voltage
220 V AC single-phase
220 V AC to 240 V AC
176 V AC to 290 V AC
3 BTS3900 Hardware Configuration
BTS3900
Hardware Description
3-18
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Issue 04 (2011-02-15)