YDJ11-1987 PDF English
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| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| YDJ 11-1987 | English | 1129 | Add to Cart | 6 days [Need to translate] | Specification for installation design of long-distance manual telephone exchange equipment |
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Basic data
| Standard ID | YDJ 11-1987 (YDJ11-1987) |
| Description (Translated English) | Specification for installation design of long-distance manual telephone exchange equipment |
| Sector / Industry | Telecommunication Industry Standard |
| Classification of Chinese Standard | M40 |
| Word Count Estimation | 35,389 |
| Date of Implementation | 1/1/1989 |
| Regulation (derived from) | Communication Standards and Quality Information Network |
| Summary | This standard applies to the new three, four long-haul Center toll-powered artificial exchange project. |
