User Manual

Table 29. Continuous Operation Specifications for ASHRAE A2 (continued)
Allowable continuous operations
Operational altitude de-rating Maximum temperature is reduced by 1°C/300 m (33.8°F/984 Ft) above
900 m (2953 Ft)
Table 30. Continuous Operation Specifications for ASHRAE A3
Allowable continuous operations
Temperature range for altitudes <= 900 m (<=
2953 ft)
5–40°C (41–104°F) with no direct sunlight on the equipment
Humidity percent range (non-condensing at all
times)
8% RH with -12°C minimum dew point to 85% RH with 24°C (75.2°F)
maximum dew point
Operational altitude de-rating Maximum temperature is reduced by 1°C/175 m (33.8°F/574 Ft) above
900 m (2953 Ft)
Table 31. Continuous Operation Specifications for ASHRAE A4
Allowable continuous operations
Temperature range for altitudes <= 900 m (<=
2953 ft)
5–45°C (41–113°F) with no direct sunlight on the equipment
Humidity percent range (non-condensing at all
times)
8% RH with -12°C minimum dew point to 90% RH with 24°C (75.2°F)
maximum dew point
Operational altitude de-rating Maximum temperature is reduced by 1°C/125 m (33.8°F/410 Ft) above
900 m (2953 Ft)
Table 32. Common Environmental Specifications for ASHRAE A2, A3, A4
Allowable continuous operations
Maximum temperature gradient (applies to both
operation and non-operation)
20°C in an hour* (36°F in an hour) and 5°C in 15 minutes (41°F in 15
minutes), 5°C in an hour* (41°F in an hour) for tape
NOTE: * - Per ASHRAE thermal guidelines for tape hardware, these are
not instantaneous rates of temperature change.
Non-operational temperature limits -40 to 65°C (-104 to 149°F)
Non-operational humidity limits 5% to 95% RH with 27°C (80.6°F) maximum dew point
Maximum non-operational altitude 12,000 meters (39,370 feet)
Maximum operational altitude 3,048 meters (10,000 feet)
Table 33. Maximum vibration specifications
Maximum vibration Specifications
Operating 0.26 G
rms
at 5 Hz to 350 Hz (all operation orientations)
Storage 1.88 G
rms
at 10 Hz to 500 Hz for 15 minutes (all six sides tested)
Table 34. Maximum shock pulse specifications
Maximum shock pulse Specifications
Operating Six consecutively executed shock pulses in the positive and negative x, y,
and z axis of 6 G for up to 11 ms.
Storage Six consecutively executed shock pulses in the positive and negative x, y,
and z axis (one pulse on each side of the system) of 71 G for up to 2 ms.
50 Appendix A. Additional specifications