User's Manual

MicroMAX Hardware Installation User Guide
Page 44 Commercial in Confidence UWB-D00068 Rev J
8 AC/DC Power Converter
This section provides a description of the external AC/DC Power converter - Optional.
The third-party external AC/DC Power Converter is an optional unit that connects to the BSDU in
the event there is no -48VDC availability at the Base Station site
(110/220 input). The AC/DC
Power Converter chassis fitted with one PS Unit for BSDU (PC-BSDU-1) supports up to 8 BSRs.
An additional PS unit is available (optional) for redundancy.
The figure below illustrates the AC/DC Power Converter's physical dimensions.
Figure 23 - AC/DC Power Converter
8.1.1 Physical Dimensions
The AC/DC power converter physical dimensions are described in the following table.
Table 22 - AC/DC power converter dimensions
Parameter Value Comment
Height 43.2 mm (1.7 inches)
Width 482.6 mm (19 inches)
Depth 228.6 mm (9 inches)
The physical dimensions exclude the bracket flanges for mounting.
8.2 Redundant PS Unit
The RPSU-BSDU-1 is a redundant PS Unit for the BSDU AC/DC power converter. The power
factor corrected (PFC) front ends provide a 48 VDC output for distributed power applications. The
small 1U by 2U size allows for configurations of either height in hot-swap redundant systems
while its internal fan and cooling design permits wide use with reliable operation.
The figure below illustrates the redundant PS Unit.
Figure 24 - RPSU-BSDU-1