Solution : https://service.sap.com/sap/support/notes/582070 (SAP Service marketplace login required)
Key words : 
patch level 1408 basis release 6, kernel basis release 4, incorrect code page, rfc-based logon, patch level 548, kernel error, java connector, dcom connector, displayed incorrectly, terms mdmp
Related Notes : 
       
| 680524 | Incorrect code page when you use RFC with SAP GUI connection | 
| 530608 |