INTEGRATED CIRCUIT AND MESSAGE SWITCH.
Abstract
The problem of integrating the functions of a circuit and a message switch was examined on three levels. The first consisted of identifying functions in both switching modes which had similar over-all demands, such as header/signalling analysis, called/routing determination, etc. The second consisted of examining methods of implementing both common and dissimilar functions via a common control system. The third level consisted of examining a modular organization which offered an ability to change the number of terminations and/or the connected data load, and yet maintain an integral module which can be connected to other modules so that the resulting configurations can operate with a terminating quantity greater than that of one module. A stored program processor control was developed which constitutes a major system within the module. The controller will apportion both circuit switched and message switch traffic service as a function of the degree of load on the module, the available trunks, the mix between store and forward and circuit switched traffic at certain times, and similar considerations. A concept for a modular program for the controller was developed, as well as some considerations on terminal types, procedures and applicable signalling and supervision. A space division switching technique was selected which uses solid state integrated circuit cross points, with fast response time and sufficiently wide band pass to cope with analog and/or digital traffic. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1967
- Accession Number
- AD0820677
Entities
People
- Irv Susskind
- Leon Stampler
- Peter Boehm