Arrangement for transmitting check characters to connector elements of a tester

US4580264A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Rolf Tannhauser · Krailling, DE
• Franz Herrmann
• Antun Vucsic · Munich, DE

Key dates

• Filing date: Sep 21, 1983
• Grant date: Apr 1, 1986
• Expiry date: Sep 21, 2003

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R31/31908
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

When testing a unit under test, for example, a card module, check characters must be transmitted to the unit under test from the tester via connector elements. One selection device per connector element is provided in order to be able to transmit the correct check character over the correct connector element. Each selection device contains addresses of the check characters which are to be transmitted over the allocated connector element in an address register. During the test event, the assistance of a comparison device is employed in order to determine whether the addresses contained in the address register coincide with the addresses of check characters which are supplied by an input bus. Given equality, the allocated test signal is transmitted to the connector element. When a plurlity of check characters are allocated to one address, one of the check characters can be selected and transmitted to the connector element with the assistance of a multiplexer given equality of the addresses. Since respectively those check characters which are to be transmitted over the connector element are selected by a changeable address stored by the associated selection device, the check character…