YD/T 542-1992 PDF English
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| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| YD/T 542-1992 | English | 199 | Add to Cart | 2 days [Need to translate] | Graphic symbols used in circuit operation procedure diagram for electromechanical components of telephone exchanges |
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Basic data
| Standard ID | YD/T 542-1992 (YD/T542-1992) |
| Description (Translated English) | Graphic symbols used in circuit operation procedure diagram for electromechanical components of telephone exchanges |
| Sector / Industry | Telecommunication Industry Standard (Recommended) |
| Classification of Chinese Standard | M40 |
| Word Count Estimation | 4,425 |
| Date of Issue | 6/14/1992 |
| Older Standard (superseded by this standard) | GB 2644-1981 |
| Regulation (derived from) | Industry-Science [2008] No. 21 |
