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TB/T 1691-1995 English PDF

US$279.00 ยท In stock
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TB/T 1691-1995: Direct Current Signaling between Railway Telephone Switching Networks
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TB/T 1691-1995English279 Add to Cart 3 days [Need to translate] Direct Current Signaling between Railway Telephone Switching Networks   TB/T 1691-1995

PDF similar to TB/T 1691-1995


Standard similar to TB/T 1691-1995

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Basic data

Standard ID TB/T 1691-1995 (TB/T1691-1995)
Description (Translated English) Direct Current Signaling between Railway Telephone Switching Networks
Sector / Industry Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard S71
Word Count Estimation 8,899
Date of Issue 6/5/1995
Date of Implementation 12/1/1995
Older Standard (superseded by this standard) TB 1691-1985
Summary This standard specifies the railway between phones switched telephone network, railroad phones and related technical instructions DC signal between the local telephone office. This standard applies to vertical and horizontal - vertical and horizontal, vertical and horizontal - the connection between telephones.

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