Connections between coaches

[rdeez]

Is Ethernet used for vital controls on aircraft? That would be a more critical application than trains, given that on an aircraft you usually can't just dump the brakes and stop if you are in trouble.

The aviation industry is in recent years using a more robust implementation of ethernet, known as AFDX (Avionics Full-Duplex Switched Ethernet):

http://en.wikipedia.org/wiki/Avionics_Full-Duplex_Switched_Ethernet

Which itself is part of a standard known as ARINC 664.

http://en.wikipedia.org/wiki/ARINC

Though implementations vary by manufacturer.

 

[AM9]

The aviation industry is in recent years using a more robust implementation of ethernet, known as AFDX (Avionics Full-Duplex Switched Ethernet):

http://en.wikipedia.org/wiki/Avionics_Full-Duplex_Switched_Ethernet

Which itself is part of a standard known as ARINC 664.

http://en.wikipedia.org/wiki/ARINC

Though implementations vary by manufacturer.

In military aircraft, (and some ground kit) the MIL-STD-1553 bus family has been in use for over 30 years. This is based on a coaxial cable with dual redundant channel capability. It is not very fast but there is a related fibre bus that can handle reasonable rates. These data buses handle safety critical functions (flight controls and alarms etc.) and mission critical roles (mission data, threat warning/countermeasures and ultimately weapon release control).
As mentioned above, saving the vehicle and crew has a high priority, but even that is userped by systems designed to ensure support success.

 

[thelongestroad]

FGW have or are in the process of renewing HST jumper leads to carry the new wifi system.

 

[plastictaffy]

So if some of the train's sytems are now controlled by ethernet or Wi-Fi, they could be hacked into......??

 

[Murph]

So if some of the train's sytems are now controlled by ethernet or Wi-Fi, they could be hacked into......??

Not if it's engineered properly. It's entirely possible to securely allow passengers to use the public side of a network while simultaneously making it impossible for them to even see the private side of it.

 

[BestWestern]

[deleted]