Table 2-1 Environmental Requirements - SMART Embedded Computing RTM-ATCA-F140 Series Installation & Use Manual

Table 2-1
Requirement
Temperature and airflow per
PICMG 3.7 R1 Class B.4
Airflow Impedance
Temperature
Temperature change
Relative humidity
Altitude
RTM-ATCA-F140 Series Installation and Use (6806800M97M)
Environmental Requirements
Operating
The RTM shall require no more than
2.2CFM at the inlet ambient of 25°C (77°F).
Under abnormal short term operating
conditions such as an air mover failure, an
RTM shall require no more than 3.0CFM at
the inlet ambient of 40°C (104°F).
The RTM shall require no more than
3.2CFM at the inlet ambient of 40°C (104°F)
under normal operating conditions.
Under abnormal short term operating
conditions such as an HVAC failure the
RTM shall require no more than 5.0CFM at
the inlet ambient of 55°C (131°F).
An ATCA RTM shall present less than 0.1
inches water back-pressure at 5CFM airflow
at sea level.
25°C when cooled by an even airflow of
2.2CFM
0°C to 40°C when cooled by an even airflow
of 3.0CFM
-5°C to 55°C when cooled by an even
airflow of 5.0CFM
±0.5°C/min
5% to 95% noncondensing at 40°C
-300m to 1,800m at 40°C
1,800m to 4,000m at 30°C
Between 106kPa and 70kPa air pressure
Hardware Preparation and Installation
Non-Operating
-40°C to 85°C
±1°C/min
5% to 95%
noncondensing at 40°C
-300m to 13,000m
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