DRS already outfitted another Korean destroyer with the same technology under a contract previously awarded by the Special & Naval Shipbuilding Division of Hyundai Heavy Industries Co.
The Buffalo, N.Y.-based division of DRS is expected to complete the work by May 2010.
The company will manufacture, install and test the network to insure communications between the legacy systems and the latest commercial off-the-shelf-based systems.
Shares of DRS fell 73 cents to close at $50.84 on the New York Stock Exchange.