Cisco ASR 5000, Руководство по установке

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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.
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.
Important
The following drawing shows the PFU and its connectors.
Figure 6: PFU Components
Table 5: Power Filter Unit Component Descriptions
Description Item
Plastic terminal cover 1
ASR 5000 Installation Guide
11
ASR 5000 Hardware Platform Overview
Power Filter Units