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SWT SDO boards

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Phillipimo

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I have noticed SWT stations on the Fareham to southampton line (not sure about other places) have had SDO signs put up on car stop marker posts, are Desiros's getting SDO soon then?
 
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swt_passenger

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Those indicator boards are in the colours SN use for SDO signage aren't they?

But yes, the complete 450 and 444 fleet (and the 458s) are all getting carriage level ASDO, 168 sets of platforms are being fitted (that's almost everywhere except the Salisbury route). Project announced by NR in 2011, with a proposed completion date of May 2014.

I provided links to a good article explaining it in one of the early 458/5 threads, but here it is again anyway:

http://www.therailengineer.com/2013/04/12/being-selective/

The Siemens Desiro trains of Classes 444 and 450 have a modern Train Management System (TMS) that services the whole unit and thus a reader has only been fitted to every cab vehicle. The reader picks up data from the beacon and enters this into the TMS via an RS485 communication port. All readers are active but only one is needed to acquire the platform information. The TMS will then know where the train is, if it is due to stop at the station, which side the platform will be and which doors to release if it is a short platform. The stopping accuracy by the driver is based upon ± 2 metres from the platform marker point. A total of 344 readers are being supplied for the Desiro fleet, these being fitted at the Northam depot near Southampton.
The Class 458 Juniper trains from Alstom are an older design with only a limited TMS which is already full and would be expensive to upgrade. Thus it has been necessary to fit every carriage with a reader, which will include the additional carriages to be inserted to make the 5 car unit. The operation will be different; each reader will connect to that carriage door control and every carriage that passes over the entry beacon will have the door opening enabled.
 
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Phillipimo

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Portsmouth
Thanks, and yes they are in a lighter blue, however I'm sure i saw them at stations Southern don't use, i might be dreaming though!
 

swt_passenger

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Thanks, and yes they are in a lighter blue, however I'm sure i saw them at stations Southern don't use, i might be dreaming though!

Ah but Southern do call at all stations towards Southampton, even if only on one morning peak service, around about 0830.

They call at some of them in the return direction towards Fareham, with the odd early or late train, but not all stations. Other than Swanwick the various intermediate calls are not shown in the main part of their timetable, just in the notes section. They have also run shortened services during weekend engineering work terminating at Netley or Woolston, it's possible they could stop anywhere in extremist though.
 
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