Slot Numbering
The rear slots are numbered 1 through 10 with slots 5 and 6 used for the chassis management cards. The front
slots are numbered 11 through 20. Lower slot numbers begin at the left side. There are no direct relationships
between front and rear cards.
Figure 3: ASR 5500 Slot Numbering
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MIO/UMIO
Power Filter Units (PFUs)
Two PFUs mount at the top front of the chassis. Each PFU supports four power planes.
A total of eight -48 VDC, 80-amp power feeds are required for a full chassis. The eight feeds operate in a 4+4
redundant configuration. In lab environments where power redundancy is not required, four 80-amp lines can
be used. For additional information on power requirements, see the Technical Specifications chapter.
ASR 5500 Installation Guide
4
ASR 5500 Hardware Platform Overview
Slot Numbering
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