中圖分類號： V19、
文獻標識碼： A
DOI： 10.19358/j.issn.2096-5133.2021.03.012
引用格式： 劉士全，曹曉斌，蔡潔明，等. 1553B總線電路冷備份使用情況下總線端口潛通路分析驗證[J].信息技術(shù)與網(wǎng)絡(luò)安全，2021，40(3)：67-71.

Latent path analysis test of bus port with 1553B bus circuit cold backup application

Abstract： In the application of 1553B bus devices in space system units, in order to increase the reliability of the stand-alone devices, two 1553B bus units are used. Two stand-alone devices′bus outputs are connected, a set of stand-alone devices powered up for use, a set of stand-alone devices powered outages in a cold backup state, two sets of stand-alone devices are cold backup for each other. When the devices functions normally, cold backup of each other can not affect each other. This article introduces the internal port structure of the 1553B bus circuit for this application, and the latent access problem of bus port under the condition of cold backup is tested and verified in detail. Through test and analysis, it is proved that the two 1553B bus circuits are stable and reliable under the condition of cold backup without mutual influence.

Key words : 1553B bus；bus port；cold backup；test and verification