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AT&T网络系统公司于89年10月24日在介绍它的同步光纤网络(SONET)相兼容的传输产品时,证实他们将承担第二阶段的SONET标准的制订工作。AT&T传输系统业务部主任Pete Fenner在介绍AT&T2000年产品系列时说,“SONET是90年代全球性的传输形式。但是支持这标准的系列产品不只是某些不确定的未来构想,而且其中两个产品目前已在工作”。AT&T2000年产品系列有如下几种: ——光波通信系统——FF-2000,电话公司使用该系统可在光纤上以光脉冲形式传送数千路普通电话或
AT & T Network Systems confirmed on October 24, 1989, when it introduced its SONET-compatible transport products, that they would undertake the second phase of SONET standard development. Pete Fenner, director of AT & T’s Transmission Systems business unit, who introduced AT & T’s 2000 product line, “SONET was a global form of transmission in the 90s, but the products that support this standard are not just some of the uncertain future ideas, but two of them Currently at work. ” AT & T2000 product line includes the following: - Lightwave Communication System - FF-2000, the telephone company to use the system in the form of light pulses on the optical transmission of thousands of ordinary telephone or