A cable layer is a deep-sea vessel designed and used to lay underwater cables for telecommunications, electric power transmission, military, or other purposes. Cable ships are distinguished by large cable sheaves for guiding cable over bow or stern or both.

Cable Layer Setun laid down on 14 May 1980 at Wartsila, Helsinki, Finland (yard No.435), launched on 29 April 1981, commissioned on 03 December 1981 and was assigned to the Black Sea Fleet.

Now in service.