Power Connection Guidelines
You can configure the router with either an AC-input or DC-input power subsystem, so the site power source
requirements differ depending on the power subsystem in your router. Ensure all power connection wiring
conforms to the rules and regulations in the National Electrical Code (NEC) as well as local codes.
Each Cisco ASR 9901 or Cisco ASR 9001 Router is powered by only one type of input: AC or DC. A hybrid
(AC+DC) power configuration is not supported.
Caution
Proper grounding is necessary to avoid damage from lightning and power surges. See NEBS Supplemental
Unit Bonding and Grounding Guidelines, on page 34 for grounding requirements.
Caution
AC Powered Routers
Cisco ASR 9901
AC power modules operate in the input range of 200 VAC to 240 VAC, 50 to 60 Hz and require a minimum
service of:
• 15 A for operation in North America and Japan
• 10 A for international operation
• 13 A for operation in the UK
Each of the AC power inputs requires a separate dedicated branch circuit. For a list of the nominal and
acceptable value ranges for source AC power, see AC Input Voltage Range.
The following table lists the AC-input power cord options, specifications, and Cisco product numbers for the
Cisco ASR 9901 AC-input power supply modules. This table also references power cord illustrations. For
more information on Cisco product numbers (PIDs) and their detailed description of power cords, refer to
Dynamic Configuration Tool.
Table 1: AC-Input Power Cord Options for Cisco ASR 9901 Router
Power Cord RatingLengthPart NumberLocale
16A, 250 VAC14 ft (4.26
m)
CAB-AC-16A-SG-ARArgentina
16A, 250 VAC14 ft (4.26
m)
CAB-AC-16A-SG-AZAustralia
16A, 250 VAC14 ft (4.26
m)
CAB-AC-16A-SG-BRBrazil
16A, 250 VAC14 ft (4.26
m)
CAB-AC-16A-SG-CHChina
Preparing for Installation
17
Preparing for Installation
Power Connection Guidelines
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