{"title":"Traffic Service Position System No. 1B: System description","authors":"N. X. DeLessio, N. A. Martellotto","doi":"10.1002/J.1538-7305.1983.TB04417.X","DOIUrl":null,"url":null,"abstract":"The Traffic Service Position System No. 1B (TSPS No. 1B) is the first field application of the Bell System's new 3B20 Duplex Processor (3B20D) in the emulation mode. The 3B20D Processor replaces the existing Stored Program Control No. 1A (SPC 1A), while retaining the existing TSPS periphery and software. A key factor is the ability to switch between the emulated software and the 3B20D native software within a single process with a single instruction. This allows the flexibility of adding software in either environment as appropriate.","PeriodicalId":447574,"journal":{"name":"The Bell System Technical Journal","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1983-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Bell System Technical Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/J.1538-7305.1983.TB04417.X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The Traffic Service Position System No. 1B (TSPS No. 1B) is the first field application of the Bell System's new 3B20 Duplex Processor (3B20D) in the emulation mode. The 3B20D Processor replaces the existing Stored Program Control No. 1A (SPC 1A), while retaining the existing TSPS periphery and software. A key factor is the ability to switch between the emulated software and the 3B20D native software within a single process with a single instruction. This allows the flexibility of adding software in either environment as appropriate.
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