ISDN-Oriented Modular VLSI Chip Set for Central-Office and PABX Applications
- 1 November 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal on Selected Areas in Communications
- Vol. 4 (8) , 1268-1274
- https://doi.org/10.1109/jsac.1986.1146473
Abstract
This paper describes a new ISDN-oriented modular (IOM®) architecture developed to establish the subscriber basic access to an Integrated Services Digital Network in a central-office or PABX environment with a minimum number of VLSI circuits. A four-component VLSI chip set is presented, consisting of the S-bus interface circuit (SBC), the ISDN burst transceiver circuit (IBC), and the ISDN echo cancellation circuit (IEC) for layer 1 data transmission at the fourwireSand the two-wireUinterface, respectively, and the ISDN communication controller for layer 2 link access protocol control. The development strategy, the functions of the IC's, and examples for their application in the subscriber terminal and digital subscriber line board are emphasized.Keywords
This publication has 2 references indexed in Scilit:
- A digital signal-processing codec filter for PCM applicationsIEEE Journal of Solid-State Circuits, 1986
- Peripheral board controller for digital exchange systemsIEEE Journal of Solid-State Circuits, 1984