Figure 2-7: Piu Module Front Panel - Nera WiLink-I Series System Manual

Chapter 2 - Installation Guidelines
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.
NOTE
The HOT SWAP blue LED does not exist in first generation PIUs.
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Figure 2-7: PIU Module Front Panel

Installation