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DC Power System Electrical Specifications
Table 28 on page 167 lists the DC power system electrical specifications.
Table 28: DC Power System Electrical Specifications
SpecificationItem
Operating range: –40.5 to –72 VDCDC input voltage
31 A @ –48 VDC per input (maximum)DC system current rating
29.58 A @ –48 VDC (1,420 W DC)DC system input power
DC Power Supply Electrical Specifications
Table 29 on page 167 lists the DC power supply electrical specifications.
Table 29: DC Power Supply Electrical Specifications
SpecificationItem
1600 WMaximum output power
Minimum: –40.5 VDC
Nominal: –48 VDC, –60 VDC
Operating range: –40.5 to –72 VDC
DC input voltage
33.3 A @ –48 VDCDC input current rating
40 AInternal supplementary
protector
Power Consumption for DC-Powered Routers
NOTE: If you plan to operate a maximally configured DC-powered router, we
recommend that you provision at least 31 A @ –48 VDC per input for each power
supply.
If you do not plan to provision at least 31 A @ –48 VDC per input for each power
supply, you can use the information in Table 30 on page 168 and Table 31 on page
168 to calculate the power consumption @ –48 VDC and thermal output for your
hardware configuration.
Table 30 on page 168 lists the power requirements for base AC-powered routers
operating under typical voltage conditions and includes nonredundant and redundant
DC Power Specifications and Requirements ■ 167
Appendix D: Power Guidelines, Requirements, and Specifications