Spio Cross-Connect Bus; Power Filter Units - Cisco ASR 5000 Installation Manual

ASR 5000 Hardware Platform Overview

SPIO Cross-Connect Bus

To provide redundancy between Switch Processor I/O (SPIO) cards, the system possesses a physical
interconnect between the ports on the SPIOs. This cross-connect allows management traffic or alarm outputs
to be migrated from an active SPIO experiencing a failure to the redundant SPIO.
While an SPIO should be installed directly behind its corresponding SMC, this bus allows either SMC to
utilize either SPIO.

Power Filter Units

Located at the bottom rear of the chassis are slots for two 165-amp Power Filter Unit (PFU) assemblies. Each
PFU provides DC power from the site's power distribution frame (PDF) to the chassis and its associated cards.
Each load-sharing PFU operates independently of the other to ensure maximum power feed redundancy. The
maximum input operating voltage range of the PFU is -40 VDC to -60 VDC; the nominal range is -48 VDC
to -60 VDC.
Important
The following drawing shows the PFU and its connectors.
Figure 6: PFU Components
Table 5: Power Filter Unit Component Descriptions
Item
1
The ASR 5000 does not offer an AC power supply option. If only AC power is available at the installation
site, an adequately sized AC-to-DC converter will be required to supply -48 VDC power to the chassis.
Description
Plastic terminal cover
Power Filter Units
ASR 5000 Installation Guide
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