Required to attach Leica GS15 SmartAntenna onto Leica TS11/TS15/TS30/TM30 totalstation for SmartStation setup. To use Leica TS30/TM30 as a SmartStation together with the Leica GS15 SmartAntenna, the Leica CS10/CS15 field controller is required to communicate to Leica GS15 and TS30/TM30.