Power Requirements; Hot Swap Support; Power Interface Unit (Piu); Table 2-6: Power Requirements, Base Station Equipment - Nera WiLink-I Series System Manual

Unused slots should remain covered until required.
2.2.3

Power Requirements

Use the following table to calculate worst-case power source requirements for the
Base Station equipment (see also some examples in
Unit
Power Source
PIU
PSU
NPU
AU-IDU
AU-ODU
AU-ODU-HP
AVU
NOTE
The PSU(s) do not supply power to the AU-ODUs. Regulat AU-ODUs are powered directly from the
power source via the PIU and the back plane. High Power AU-ODU HPs are powered from an ODU
Power Feeder.
2.2.4

HOT SWAP Support

The NPU, AU-IDU and new PIU modules includes a blue HOT SWAP LED and a
micro-switch in the injector/ejector handle to support hot-swap control. After
releasing the ejector's button, the HOT SWAP LED should turn on, indicating that
power to/from the back-panel is disconnected and the module can be removed
safely. For more details refer to
2.2.5

Power Interface Unit (PIU)

The 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
system from power problems such as over voltage, surge pulses, reverse polarity
connection and short circuits. It also filters high frequency interference (radiated
WiLink-I Modular Base Station System Manual

Table 2-6: Power Requirements, Base Station Equipment

Details
-40.5 to -60 VDC
16W maximum (active PIU)
200W max output power
Efficiency: 80% minimum
65W maximum
38W maximum
38W maximum
95W maximum
24W maximum
Installing the Base Station Equipment
Section 2.2.9.
Table 1-15):
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