Canadarm2 connects with Mobile Base System
the Space Station Remote Manipulator System (SSRMS), known as Canadarm2.
the Mobile Remote Servicer Base System (MBS).
the Special Purpose Dexterous Manipulator (SPDM, also known as "Dextre" or "Canada hand").The system can move along rails on the Integrated Truss Structure on top of the US provided Mobile Transporter cart which hosts the MRS Base System. The system's control software was written in the Ada 95 programming language.The MSS was designed and manufactured by MDA, (previously divisions of MacDonald Dettwiler Associates called MDA Space Missions, MD Robotics, and previously called SPAR Aerospace) for the Canadian Space Agency's contribution to the International Space Station.Special Purpose Dexterous Manipulator
The Special Purpose Dexterous Manipulator, or "Dextre", is a smaller two-armed robot that can attach to Canadarm2, the ISS, or the Mobile Base System. The arms and their power tools are capable of handling delicate assembly tasks and changing Orbital Replacement Units (ORUs) currently handled by astronauts during spacewalks. Although Canadarm2 can move around the station in an "inchworm motion", it's unable to carry anything with it unless Dextre is attached. Testing was done in the space simulation chambers of the Canadian Space Agency's David Florida Laboratory in Ottawa, Ontario. The manipulator was launched to the station on 11 March 2008 on STS-123.