HARTING’s DIN 41612 Train Control Modules - Alltronix

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Trains are always subject to a wide range of
conditions like extreme temperature, extreme
pressure, abrasion, moisture, and much more. They
have to travel through all kinds of
environmental conditions and weather all round
the year. Travelling from one city to another or
one state to another, there are variations in
temperatures, atmospheric pressures, and other
environmental conditions and they have to face
all of that. This is why all the parts used in
trains, the body, the engine, and everything
else need to be such that they can handle all
these variations. The connection technology for
train control modules are also subject to these
conditions. To aid all of this effectively,
HARTING has developed a unique full metal housing
made of die-cast zinc.
These housings are used with approved and
standard F and MH crimp connectors in accordance
with the DIN 41 612 standard, which are fastened
to the housing without the use of any screws.
The particular design of the housing safely
protects it against electromagnetic influences.
This guarantees an electric connection to the
cable shielding, thus providing uninterrupted
homogenous shielding of the housing, and
assurance of absolute signal integrity in train
control units. Furthermore, the housing is
required to be easy to mount, which is why all
the fixing screws for the housing assembly are
on the side of the housing which means that the
housing doesnt have to be turned over during
assembling. Also, the captive screws that are
responsible for fitting the connector together
before the final assembly of the housing are
already fastened to the housing. Furthermore, the
unassigned cable entries are covered with
flexible metal plates that are easy to assemble
and remain
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• secured in place because of the mechanical
  tension. Both the housing and shielding are
  connected to a metal plate where only a grub
  screw is needed for assembling. Moreover, the
  cable can be fixed in the housing with a standard
  cable fastener. All of this provides for a
  simple and cost-effective assembly. Thus, you can
  gain benefits of rugged housing, easy assembly,
  and electromagnetic compatibility protection with
  this housing from HARTING. You can get these DIN
  41 612 connectors and many others for all kinds
  of applications at Alltronix, the leading HARTING
  distributor in Delhi, Mumbai, Pune, Bangalore,
  Chennai, and Hyderabad.
• Along with the above DIN standard, it is also
  very important that all railway components are
  tested as per IEC61373 in India. The IEC61373
  specifies the requirements for testing products
  intended for use on railway vehicles that are
  subjected o vibrations and shock. These tests
  prove the capability of the equipment to
  withstand such environmental conditions for a
  duration that stimulates the service conditions
  seen throughout their expected lifespan. This
  testing can be achieved in a number of ways like
  
• Amplification, where amplitudes are increased and
  the time base is decreased
• Decimation, where time slices of the historical
  data are removed when amplitudes are below a
  specified threshold value
• Time compression, where amplitude history is
  retained and time base is decreased Equipment
  tested at levels that are lower than this
  standard cannot be certified. The test values
  quoted in this standard have been divided into
  three basic categories,
• depending upon the equipments location within
  the vehicle. These include body mounted
  components, bogie mounted components, and axle
  mounted components.
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