Circuit arrangement for telecommunications switching systems, particularly for telephone switching systems comprising information-processing sequential logic systems and traffic measuring devices

US4802205A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Michael Eder · Lienz, AT
• Klaus Leutner · Unterhaching, DE
• Siegfried Pohl · Oberschleißheim, DE

Key dates

• Filing date: Aug 13, 1986
• Grant date: Jan 31, 1989
• Expiry date: Aug 13, 2006

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04Q3/54591
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Seizable connection-associated switching devices emit processing requests for incoming information to a central sequential logic system. Processing requests differ on the basis of different urgency degrees which are defined by type of appertaining, connection-associated switching devices. A limit value is set in an occupation non-acceptance device based on the measure of the momentary sequential logic system load. The processing request are rejected (or accepted) by way of a comparison of the respective urgency value to the limit value which is carried out by way of the occupation non-acceptance device, being rejected (or accepted) when the urgency value is lower (or greater) than the limited value. Connection-associated switching devices having the same urgency degree are combined in different urgency groups having different urgency subvalues on the basis of their addresses. Acceptance, as well as rejection, of seizures by the occupation non-acceptance device is also carried out according to these urgency subvalues whose mutual prioritization is cyclically interchanged in uniform time intervals.