Tester for rack containing subscriber circuit

Abstract

Abstract PURPOSE:To avoid increasing the scale of an interface part and to perform a test by leading all subscriber circuits to a tester via a piece of subscriber lead-in test line which serves as an interface of a module group for storage of subscriber circuits. CONSTITUTION:A tester 1 is provided with a microcomputer system part 2, a control circuit part 3 and an artificial subscriber circuit part 4. The part 2 includes a microcomputer 5, a CRT display part 6 where the output of the computer 5 is displayed, a minifloppy 7 and a printer 8. A subscriber circuit holding rack 9 contains a subscriber circuit store module 11 and a control module 10 which controls the module 11. The module 11 is connected to the part 4 via a subscriber lead-in test line 13 and the module 10 is connected to the part 3 via a control line 12.

Inventors

• 👤 Fumiyasu Otani
• 👤 大谷　文康

Bibliographic Details