Circuit arrangement for telecommunication exchange systems, particularly telephone exchange systems with switch facilities for emitting signals

US4605824A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Josef Birlmeier · Deisenhofen, DE
• Klaus Eberlein · Wolfratshausen, DE
• Werner Nagler · Starnberg, DE

Key dates

• Filing date: Mar 30, 1983
• Grant date: Aug 12, 1986
• Expiry date: Mar 30, 2003

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M19/02
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A telecommunication exchange system has a plurality of switch facilities over which signals are emitted on an average only during a part of their respective occupation. A signal current source for emission of the signals is provided having a call-handling capability limited by signal current load. A signalling system is provided for serving a distribution of the load and provides pulse sequences having respectively identical pulse spacings. Pulses of different pulse sequences simultaneously transmitted over different switch facilities have chronologically different phase relations and a chronological offset from switch facility to switch facility. The offset is such that the pulses of the different pulse sequences connect chronologically to one another with respect to pulse termination and pulse beginning. The switch facilities are allocated for receiving the pulse sequences from the signalling system to a respective one of the pulse sequences of a specific phase relation. The allocation is executable upon consideration of allocations already existing and affecting signalling events. No more than a given number of switch facilities is allocated with respect to the pulse sequences h…