The vacuum operated Test Fixtures for the Rohde & Schwarz Test Systems consist of a base housing and an INGUN vacuum cassette. The cassette is hinged for easy access to the receptacles and wiring during vacuum actuation and PC board contacting.

The Interface Frame for the R&D test system is mounted in the rear section of the housing. See photos! The Probe Plate is made of standard 10 mm hard-paper laminate (CEM-1) material. The Top Plate is made of 8 mm epoxy hard-paper laminate and coated both sides with an anti-static coating. The vacuum sealing within the cassette is achieved using the renowned INGUN wear-free V-profile seal. (See also section 9 of this catalog for more information on vacuum fixture designs).

When testing PC boards with open vias and other open areas, we recommend the use of either a Vacuum-free Zone sealing method (with a pressure-frame unit and push rods) or the use of a vacuum-sealed cover (with push-rods).