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TB/T 1693-1995 English PDF

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TB/T 1693-1995: Railway Telephone Switching Network - Signal Interface of Automatic Telephone Exchanger

TB/T 1693: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
TB/T 1693-1995English349 Add to Cart 3 days [Need to translate] Railway Telephone Switching Network - Signal Interface of Automatic Telephone Exchanger   TB/T 1693-1995
TB 1693-1985EnglishRFQ ASK 3 days [Need to translate] (Chinese Industry Standard) Obsolete TB 1693-1985

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Basic data

Standard ID TB/T 1693-1995 (TB/T1693-1995)
Description (Translated English) Railway Telephone Switching Network - Signal Interface of Automatic Telephone Exchanger
Sector / Industry Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard S71
Word Count Estimation 10,163
Date of Issue 6/5/1995
Date of Implementation 12/1/1995
Older Standard (superseded by this standard) TB 1693-1985
Adopted Standard CCITT, NEQ
Summary This standard specifies the analog interface conditions railway automatic telephone exchanges switched telephone network transmitted signal. To switch long-distance connection with the station, signal interface also makes provision for recording information desk connection. This standard applies to the following interface points: a) switch and transmission equipment (audio pairs, the carrier terminal equipment, pulse code modulation multiplex equipment, etc.) between; among b) switch and signal conversion equipment; c) signal conversion and transmission equipment between devices; b) long-distance connection sets record with the switch between the information desk or signal conversion equipment.