Yes, the KMD-250, KMD-550, and KMD-850 Multi Function Displays will all display traffic information from a Skywatch (TRC497) or Skywatch HP (TRC899) processor. However, the Skywatch processors do not accept ARINC 429 control from the KMD units for Test (TST), Standy (SBY), and ON controls. The TRAFFIC CONTROL on the Traffic Setup Page of the KMD MFD must be set to DISABLED. In addition, the installer must provide two push buttons to control the operating mode of the Skywatch processor unit. These buttons provide a momentary connection to aircraft ground when pressed and should be labeled as indicated.