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Chinese National Standard Category: Basic standards and general methods |
English Title: | Graphic symbols used in circuit operation procedure diagram for electromechanical components of telephone exchanges |
Chinese Title: | 电话交换机机电件电路动作程序图图形符号 |
Standard No.: | YD/T 540-1992 |
Category No.: | M04 |
Issued by: | |
Issued on: | |
Implemented on: | |
Status: | abolished |
Superseded by: | |
Superseded on: | |
Abolished on: | 2009-12-01 |
Superseding: | GB 2095-1980 Electromechanical components for telephone switching system--Graphical symbols for operation sequence diagram |
Word Count: | 1500 words |
Similar Standards: | YD 5084-1999 YD/T 540-1992 T/CCSA 240-2019 GB/T 38121-2023 GB/T 19663-2022 GB/T 41089-2021 GB/T 40621-2021 GB/T 38121-2019 GB/T 37048-2018 GB/T 36963-2018 GB/T 37047-2018 GB/T 21431-2015/XG1-2018 YD/T 2583.1-2018 GB/T 13504-2008/XG1-2016 GB/T 21431-2015 YDB 161-2015 QX 4-2015 GB/T 15658-2012 YDB 123-2013 GB/T 28507-2012 |
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