Cisco ASR 5500, Руководство по установке

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Notes:
1 A minimum of four -48VDC power feeds are required on PFU-A to provide non-redundant power to a
chassis and all its cards. Four additional power feeds are required on PFU-B for power redundancy (4+4
= 8).
2
Although the chassis may not draw 12.8 kW, a minimum of four 80-amp -48VDC feeds must be properly
sized and wired to PFU-A to assure that all chassis slots are powered and available for future expansion.
All power inputs on PFU-A must be connected to live power feeds to assure that all chassis card slots are
energized.
3 The type and number of cards installed in the ASR 5500 chassis determine the actual -48VDC power draw.
See
Example Power Calculations, on page 22 .
The power source must be a UL/CSA listed device with a regulated output no greater than -60VDC.
Important
The DC power Battery Return (BR) or positive terminal, must be grounded at the source end (power feed
or mains power end). Important
The DC power BR input terminal of the ASR 5500 is not connected to the equipment frame (chassis) and
is configured as DC-I in compliance with GR-1089-CORE (sec.9.8.3). Important
Example Power Calculations
DPC/UPDC Full Chassis
This calculation assumes that a fully redundant ASR 5500 chassis will be equipped with DPC/UDPCs.
(8) DPC/UDPCs [8x630w] = 5040 watts
(2) MIO/UMIOs [2x650w] = 1300 watts
(4) FSCs [4x150w] = 600 watts
(2) SSCs [2x10w] = 20 watts
Fan Units [front and rear] = 2000 watts
Total = approximately 9 kW
DPC2/UDPC2 Full Chassis
This calculation assumes that a fully redundant ASR 5500 chassis will be equipped with DPC2/UDPC2s.
(8) DPC2/UDPC2s [8x760w] = 6080 watts
(2) MIO/UMIOs [2x650w] = 1300 watts
ASR 5500 Installation Guide
22
Technical Specifications
Example Power Calculations