Timex Portugal developed some test interfaces so a technician could check for problems on their computers in the assembly line.
Some were made with a custom box, others with a TI case.
TE-9413/01/36 is a TS1000 test.
TE-ZXS.01-10 is a 48K test.
TE-9415/01/34 is a Timex 2048 test.