白家疃台数据专线的改造
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摘要
中国数字地震台网(CDSN)的白家疃实时数据专线,自1995年底开通以来,一直承担中美地震科技合作和中国地震局地球物理研究所的科研任务,鉴于当时的条件,这条专线采用了模拟线传输,因而运行质量差。我们感到,低劣的线路质量与它担负的任务是不相适应的。随着我国电信业的发展,最近,我们对白家疃专线进了改造,开通了新的白家疃DDN专线,从而提高了整个链路的安全可靠性。
The BJT real time data link of China Digital Seismograph Network has kept To take on the both the China with the USA seismograph seintific technology coopration and our institute′s seintific research tasks since the end of 1995 year.In view of the condition at that time,this link adopted the analog lines to transmite data.So the operating quality was bad.We felt that the low quality wasn′t suit with the tasks it bear.Along with the developing of China Telecom,we have transmormed the BJT link and set up the new BJT DDN link recentely,thus rising the safety and reliability of the whole link.
The BJT real time data link of China Digital Seismograph Network has kept To take on the both the China with the USA seismograph seintific technology coopration and our institute′s seintific research tasks since the end of 1995 year.In view of the condition at that time,this link adopted the analog lines to transmite data.So the operating quality was bad.We felt that the low quality wasn′t suit with the tasks it bear.Along with the developing of China Telecom,we have transmormed the BJT link and set up the new BJT DDN link recentely,thus rising the safety and reliability of the whole link.
引文
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