Cisco Systems 9000 DC-Powered Router

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CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide
Chapter1 Preparing for Installation
Site Requirement Guidelines
Figure1-50 AC Power Cord PWR-CAB-AC-SUI=
Figure1-51 AC Power Cord PWR-CAB-AC-JPN=
DC-Powered Router
Connections to DC power modules are rated at 60 A maximum. The system accepts a nominal input voltage
of –48 VDC with an operational tolerance range of –40 VDC to –72 VDC. O ne dedicat ed, comme nsurately
rated DC power source is required for each power module connection.
Power redundancy requirements vary based on the system configuration (number and type of line cards,
etc.). DC-powered systems are N+1 protected. A minimum of two power supplies are required for
redundant operation. Refer to the Cisco ASR 9000 Power Calculator to determine actual redundancy
requirements for any given configuration. See: http://tools.cisco.com/cpc/launch.jsp.
Power connections to the power tray for each DC power module requires four cables: two source cables
and two return cables. In addition, each DC power tray requires one earth ground, so the minimum
number of cables for connecting a single DC power module in a power tray is five (two source, two
return, one ground).
Note A separate ground connection is not required for the version 2 and version 3 power systems. For more
information see NEBS Supplemental Unit Bonding and Grounding Guidelines, page1-52.
Plug: SEV 5934
Cordset rating: 16 A, 250 V
Length: 13.94 ft. (4.25 m)
331427
Connector: IEC-320-C21
Cordset rating: 20 A, 250 V
Length: 13.94 ft. (4.25 m)
331424
Connector: IEC-320-C21
Plug: JIS C8303