EN50155
certification applies to the class of electronic equipment
installed on rail vehicles that uses either an accumulator
battery or a low voltage power supply source, with the exception
of electronic power circuits, which are covered by EN50207.
EN50155 sets a consistent benchmark for equipment's operation,
design, construction, and testing conditions, as well as
basic hardware and software requirements.
Moxa's railway series computers are EN50155-certified and undergo environmental testing to ensure reliable performance under a variety of power supply conditions, such as voltage variations, power interruptions, and supply changeover. The computers can also withstand environmental disturbances, including vibration, shock, and temperature variations.
What benefits does
EN50155 deliver?
EN50155 Criteria Fulfill Customer Demands
Certified functions and features
Consistent performance
in harsh environments
• Temperature, shock, vibration
Reliability and stability
• Long
MTBF (mean time between failures)
Endurance
in various environments and applications
• Temperature, shock, vibration
What is the EN50155
product standard?
What
tests must be passed to receive EN50155 certification?
The EN50155 certification
standard can be divided into four major test components (click figure
to enlarge):
EN50155 certification
includes the following routine tests for electronic equipment (click
figure to enlarge):
What conditions
are maintained during environmental testing?
Cooling
test: -40°C for 2 hours
Dry heat
test: 70°C for 6 hours
Vibration (op): 5 to 150 Hz 10 mins
/ axis (0.1 g)
Shock:
Half Sine wave 50 m / s2 30 ms
(Longitudinal/Transverse/Vertical)
Temperature Requirement
Rolling stock computers deployed on moving
vehicles can be exposed to a variety of temperature conditions,
including extreme hot or cold. The EN50155 standard includes
specific criteria for operating temperature, as illustrated
below:
Rolling
stock computers should be tested to conform to the classification
level required by the specific application. Currently,
a -40 to 70°C operating temperature range is the widest
standard required for the EN50155 Tx Class. Moxa's V2406
and V2426 computers conform to this standard.
