Table 2-8: Power Requirements, Modular Base Station Equipment; Power Requirements - Alvarion BreezeMAX 3500 System Manual

2.2.3

Power Requirements

Use the following table to calculate power source requirements for the Modular
Base Station equipment:

Table 2-8: Power Requirements, Modular Base Station Equipment

Unit
Power Source
PIU
PSU
NPU
AU-IDU
AU-ODU
AVU
NOTE
The PSU(s) do not supply power to the AU-ODUs that are powered directly from the power source
via the PIU and the back plane.
2.2.4 Power Interface Unit (PIU)
T he single Euro PIU module is the interface between the Base Station site's DC
power source and the Base Station Chassis Power Supply Units and external
ODUs, which receive power via the IDUs.
The PIU filters and stabilizes the Base Station input power and protects the
s ystem from power problems such as over voltage, surge pulses, reverse polarity
connection and short circuits. It also filters high frequency interference (radiated
emissions) and low frequency interference (conducted emissions) to the external
power source. Each Base Station chassis contains two slots for an optional 1+1
PIU redundancy. One PIU is sufficient to support a fully populated chassis. Two
PIU modules provide redundant power feeding (two input sources) while avoiding
current flow between the two input sources.
BreezeMAX System Manual
Details
-40.5 to -60 VDC
16W maximum
200W max ou tput power
Efficiency: 80% typical
65W maximum
41W maximum
32W maximum
24W maximum
Installing the Modular Base Station Equipment
45