Power Calculation
For the NCS 2015 shelf that is powered by the NCS4K-DC-PSU-V1 power module, the controller card
calculates the total power consumption of the shelf, which is displayed in the Provisioning > Power Monitor
tab in CTC. For the power calculation to function properly ensure that there is no MEA alarm on any card.
The total power consumption value for the shelf is computed by aggregating the power consumption values
of individual cards and ancillary units installed or pre-provisioned in the shelf. During power calculation,
certain wattage is always reserved for ancillary units like the ECU, fan tray, and standby controller card,
irrespective of whether they are present in the shelf or not. The reserved power for the NCS 2015 DC shelf
with a TNCS controller card is 720 W.
Fan Tray
The following table lists power requirements for the fan-tray assembly.
Table 29: Fan-Tray Assembly Power Requirements
BTU/HrAmpsWattsFan Tray Assembly
1910.7210.4560NCS2015-FTA
System Environmental Specifications
The following table describes the environmental specifications for the NCS 2015 shelf:
Table 30: Cisco NCS 2015 Environmental Specifications
Operating, nominal: 41 to 104°F (5° to 40°C)Operating,
short-term: 23 to 131°F (-5° to 55°C)Non operating: -40 to 158°F
(-40° to 70°C)
Temperature
Normal: 5 to 85%, noncondensingShort-term: 5 to 90% but not
to exceed 0.024 kg water/kg of dry air
Humidity
Up to 27,609 liters per minuteChassis airflow
Up to 6800 liters per minutePower system airflow
106°F (41°C)-at room temperatures of 77 to 84°F (25 to
29°C)118°F (48°C)-at room temperatures of 95 to 102°F (35 to
39°C)153°F (67°C)-maximum exhaust temperature on a fully
loaded system during worst-case operating conditions (55°C and
6000 ft altitude)
Air temperature rise is 54°F (12°C) on a fully loaded
system with fans running at maximum speed.
Note
Air exhaust temperature
Cisco NCS 2000 Series Hardware Installation Guide
476
Hardware Specifications
Fan Tray
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