Grapple fixture

Grapple fixtures are used on spacecraft or other objects to provide a secure connection for a robotic arm.

[5] Unpiloted ships like the SpaceX Dragon, Orbital ATK Cygnus and Japanese H-II Transfer Vehicle include a standard FRGF which is used by the Canadarm2 to grapple the capsule on approach to the International Space Station for berthing.

[7] It has a single electrical connection for data, power,[7] and video from cameras on the manipulators.

Kibo (ISS module) Remote Manipulator System (Japanese Experiment Module Remote Manipulator System) uses a similar grapple fixture, called Electro Mechanical Grapple Fixture (EMGF).

[4] It has electrical connectors for data, video, and power; it is also the only North American grapple fixture that is replaceable on-orbit.

During the penultimate Space Shuttle flight a PDGF was installed on the Zarya module to support Canadarm2 operations based from the Russian segment.

Black is compatible with the SSRMS, SRMS and JEMRMS. Blue is compatible with SRMS and JEMRMS. Red is compatible with SSRMS.
Flight-Releasable Grapple Fixture
Latchable Grapple Fixture
Electrical Flight Grapple Fixture used on the Space Shuttle's boom
Electro Mechanical Grapple Fixture used on Kibo's Small Fine Arm
Power and Video Grapple Fixture
Power and Data Grapple Fixture
A grapple fixture used by the European Robotic Arm, located on the Rassvet Mini-Research Module 1 (MRM1) of the International Space Station. This fixture, along with others allows for the European Robotic Arm to grapple and move around the station.