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:

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) .

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