Install SVN Client on your computer e.g. TortoiseSVN for windows

Install an Eclipse plugin e.g. Subversive
under Eclipse launch the Help>Install New Software
select or add a new site for Subversive with URL
http://download.eclipse.org/technology/subversive/2.0/update-site/

Install also SVN connectors e.g. subversive connectors during the first creation of SVN project (see below)

New→Other→SVN→Checkout Projects from SVN

Configure the repository access (host)
https://cieforge.univ-nantes.fr/svn/costotest

Select the trunk directory and then the source directory

Select the opton projet by module or select a specific module

Choose the Revision branch