Environmental
Storage Conditions
Requirement during storage conditions |
Min |
Max |
Units |
Temperature range |
-40/-40 |
+70/+158 |
°C/°F |
Humidity range |
10 |
90 |
% RH non-condensing |
Recovery From Extreme Storage Conditions
The card may not be powered immediately after leaving storage conditions that are outside the normal operating conditions.
A recovery time is required to ensure that:
- All components have reached the normal temperature conditions
- Eventually, all traces of condensed water have disappeared
Temperature
Operating Specification
Picolo U4 H.264 PCI-104 is designed and manufactured to operate in the temperature range specified by EN 50155 for Class T3 electronic equipment used on rolling stock in railways applications.
Temperature conditions with 1m/s airflow
Requirement during operating conditions |
Min |
Max |
Units |
Air temperature around the board |
-25/-13 |
+85/+158 |
°C/°F |
Recommended limit for board temperature |
|
+95/+203 |
°C/°F |
Absolute limit for board temperature |
|
+100/+212 |
°C/°F |
It is mandatory that the cooling system of the PC/104 stack including one or more Picolo U4 H.264 PCI-104 is efficient enough to keep the board temperature below the recommended limit even for the highest level of ambient air temperature.
Picolo U4 H.264 PCI-104 embeds a temperature sensor that measures the board temperature in the vicinity of the processor. The measurement has an absolute accuracy of ± 2°C (± 3.6°F) over the -25°C to 100°C temperature range. The board temperature is reported in °C to the application software through the API.
Picolo U4 H.264 PCI-104 embeds a "thermal protection" that safely turns off the processor, and prevents against irrecoverable board damages when the board temperature reaches the absolute limit.
Humidity
Operating Specification
Picolo U4 H.264 PCI-104 is designed and manufactured to operate in the relative humidity conditions specified by EN 50155 over the Class T3 external temperature range of -25°C(-13°F) to +40°C(-113°F) .
- Relative humidity averaged over a year ≤ 75%
- Relative humidity during 30 consecutive days ≤ 90 %
- Condensation may not cause damage or malfunction.
A coating varnish is applied on both sides of the PCB assembly.
Shocks and Vibrations
Operating Specification
Picolo U4 H.264 PCI-104 is designed and manufactured to operate normally while it sustains shocks and vibrations specified in EN 61373.
Picolo U4 H.264 PCI-104 is considered as a Category 1 Class B2 equipment as defined in EN61373; i.e. an equipment mounted inside a case that is attached on the vehicle frame.
Electromagnetic compatibility (EMC)
Operating Specification
The Picolo U4 H.264 PCI-104 is designed and manufactured to fulfill the requirement of
- The EN 50155:2007 standard
- The European Council Directive 2004/108/EEC including
- The EN 55022:1998 class A
- The EN 55024:1998 and amendments A1 (2001) , and A2 (2003)
- The Federal Communications Commission of the United State for Class A devices