Test fixture wire and connection are generally fully automatic and controlled by software, but this can make the internal connection of the receiver very complex.

Digital resources (channels) are typically located on a dedicated rack, which is then connected and allocated by a separate rack containing a switch array.

If an analog/digital channel is required, the fixture can provide jumpers, and to optimize the cost, space, and flexibility, it is usually set specifically for the specific project or program of the test fixture maker, so the new project is designed with a new STE.

Fortunately, test fixture manufacturers have automated processing, setting time, test time and overall operation is faster and easier than manual test bench.

Generating test programs will not be easy, but the required files will be greatly reduced, and STE can be extended to meet a variety of performance needs, typically used in production or maintenance centers.