User Manual

26 Part 003609A revision 01 December 16, 2002
Amosphere NPM Installation Procedures (WCS)
Altitude
Certain components in the NPM are sensitive to altitude. Table 2.6 shows the
altitude requirements for the NPM.
Airflow
Each NPM rack requires 0.6 m (2 feet) of open space in front of and behind it to
allow suitable airflow for cooling. Each cooling fan draws approximately 600
cubic feet per minute (CFM) of air.
Heat Output
Table 2.7 shows the amount of heat produced by the NPM.
Shock and Vibration
The NPM uses network equipment-building system (NEBS2000) racks designed
for use in level 4 seismic zones.
Operational State Altitude Requirement
Operating –60 m to +1800 m (–197 feet to +5904 feet)
Table 2.6 Altitude Requirements
Configuration Heat Output (W) Heat Output (BTU/hour)
6 sectors 7065 24 107
3 sectors 3810 13 000
1 sectors 1725 5 886
Table 2.7 Heat Output