Power
The chassis accepts up to eight 80-amp, -48 VDC power feeds across redundant power filter units (PFUs).
The connections are made at the top-rear of the chassis. The front-mounted PFUs incorporate separate circuit
breakers for each power feed.
Cooling
The ASR 5500 uses two types of fan tray units and a total of four fan trays per chassis – two front fan trays
and two rear fan trays. Air is drawn from the front and sides of the chassis and exhausted out the top rear and
sides. Two fan trays are mounted at the bottom of the chassis with another two at the top. The bottom fan
trays incorporate replaceable particulate air filters.
ASR 5500 Installation Guide
3
ASR 5500 Hardware Platform Overview
Power
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