This SA-2 site appears to be in disuse for its intended system, but if you look in the revetments there appears to be another system hiding at the site. Looks like it could be the Pechora-2M - but I am not sure on this one.
Further reference:
http://www.armyrecognition.com/russia_russian_missile_system_vehicle_uk/pechora-2m_s-125_sa-3_surface_to_air_anti-aircraft_missile_system_to_light_truck_data_sheet_descript.html