AXP1620 Installation and Use (6806800E23E
)
Site Preparation
Requirements
64
To guarantee proper blade operation, you have to make sure that the temperatures at the
locations specified in the following are not exceeded. If not stated otherwise, the temperatures
should be measured by placing a sensor exactly at the given locations.
Vibration
(tested in
target
platform)
0.1g from 5 Hz to 100 Hz and back to 5 Hz at
a rate of 0.1 octave/minute
5-20 Hz at 0.01 g
2
/Hz
20-200 Hz at -3.0 dB/octave
Random 5-20 Hz at 1m
2
/s
3
Random 20-200 Hz at -3 dB/octave
Free fall
-
300mm (11.8 in) (packaged)
25mm (1 in) (unpackaged) per GR-63-
CORE
fully populated system
Noise
ETSI ETS 300 753 (October 1997)
Telecommunication equipment rooms
(attended): 7.2 bel
Measurement of "declared A-weight sound
power level"
All values are applicable to normal operating
conditions (~23°C).
NEBS GR-63-CORE, Issue 3
Telecommunication equipment rooms
(attended): 78 dB
Measurement of "declared A-weight sound
power level"
All values are applicable to normal operating
conditions (~27°C).
-
Table 3-1 Environmental Conditions (continued)
Feature
Operating
Non-Operating (packed state)
z
The ambient temperature around the shelf and the air inlet temperature must not
exceed 55°C (131°F).
z
The AXP1620 system regulates the fan speed based on the temperature sensors
present in the system. The fan speed is adjusted to the lowest speed which still
keeps the evaluated temperature readings below or at their respective "upper non-
critical threshold". Hence, the fan speed depends on the ambient temperature,
blade design, temperature threshold settings, and system configuration.
Table 3-2 Critical Temperature Limits
Component
Temperature Limit
Air inlet (system’s front)
55°C (131 °F)
Air outlet (system’s rear)
70°C (158 °F)
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