The Practical Telephone Handbook and Guide to the Telephonic Exchange (Classic Reprint)
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BeschreibungExcerpt from The Practical Telephone Handbook and Guide to the Telephonic Exchange
The remarkable development in the art and practice of telephony which has taken place during the last decade, and more especially during the last five years, has necessitated the complete rewriting and rearranging of the edition of this book published in 1895. The present edition has more than twice the amount of letterpress matter, nearly 200 more illustrations, and the size of the page is enlarged. Such enlargement has been needed owing to the greatly increased scope of the art, which has followed from the general adoption of central-energy methods of working exchanges, and the greater complexity of the plant. It is, perhaps, not too much to say that, within the period mentioned, there has been a greater revolution than has taken place in any other technical business in the same time.
The apparatus used, especially that in exchanges, has, to a large extent, now become standardised, so that whilst in the future there will, no doubt, be many improvements, those made will, it is believed, more likely be in connection with smaller details than with the general principles, unless some very great advance in automatic exchange working should lead to its general adoption, which, however, is not considered likely by the writer.
This standardisation, and the general adoption of central-energy working, has led to a more scientific study and treatment of the problems involved, especially in connection with traffic and the designing of exchanges.
The necessities of central-energy working and the line-loading arrangements of Professor Pupin and others have also led to more definite appreciation of the value of the best line construction, and to the better designing of lines for economical transmission.
In the book the writer has chiefly confined himself to British practice, and mainly to that of the National Telephone Company.
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Untertitel: Paperback. Sprache: Englisch.
Verlag: Forgotten Books
Erscheinungsdatum: September 2015
Seitenanzahl: 638 Seiten