Expandable local inter-system bus architecture in a multiplexed environment

US5771232A · kind A · utility

Assignee

• International Business Machines Corporation · US

Inventors

• John C. Sinibaldi · Pompano Beach, US
• Baiju D. Mandalia · Boca Raton, US
• Gordon Taylor Davis · Boca Raton, US
• Lawrence P. Andrews · Boca Raton, US
• Robert E. Landa · Boca Raton, US
• Joe Fletcher Jones, Jr. · Boca Raton, US
• Willie J. Johnson · Sunrise, US

Key dates

• Filing date: Aug 23, 1995
• Grant date: Jun 23, 1998
• Expiry date: Aug 23, 2015

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L9/40
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

In an communication system including a computer system comprising a digital signal processing adapter for performing a-set of tasks, and a E-1 port for providing and receiving time division multiplexed (TDM) signals in accordance with a first inter-system communication protocol, such as the E-1 or T-1 protocols, a communication subsystem, for coupling to the IP system. The communication subsystem includes an E-1 link for coupling to the first I/O port, and for providing and receiving TDM signals in accordance with the E-1 or T-1 protocols. The subsystem further includes a digital signal processor adapter, coupled to the second I/O port, for enhancing processing capability of the digital signal processing resource; and a third I/O port, coupled to the digital signal processor circuit, for providing and receiving signals in accordance with the first or a second inter-system communication protocol.