Back Plane Tester
This machine is used to test back planes used in telecommunications central stations. An operator loads a completed point to point wired back plane onto a retractable shelf on the front of the tester. Table continues and the disk falls through a hole into the bin. The shelf is pushed back into the machine where it is held in place by pneumatic operated clamps. Then a series of pneumatic cylinders sequentially insert a test card into each location in the back plane. A remote instrument performs a complete point to point continuity, short and hi pot test on all connections in the back plane.
Rear view of back plane tester showing custom fabricated woven ribbon cables connecting the test boards to the remote wire scanning instrument.