User's Manual

Table Of Contents
42 Installation
Chapter 2 - Installation Guidelines
2.2.6 Power Supply Unit (PSU)
The single Euro PSU module is a 48 VDC power supply unit. Each Base Station
chassis can contain up to four PSU modules providing N+1 redundancy
configurations.
The following table displays the number of PSU modules (excluding redundant
units) required for various Base Station configurations:
Table 2-8: PSU Requirements, Configurations with one NPU (excluding PSU redundancy)
Number of AU-IDUs Minimum Required Number of PSUs
1 - 2 1
3 - 4 2
5 -6 3
NOTE
The PSU(s) do not supply power to the AU-ODUs. The regular AU-ODUs are powered directly from
the power source via the PIU and the back plane. The High Power AU-ODU-HPs are powered from
an ODU Power Feeder.