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File:4 trunk exchange.png

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Summary

Description
English: Diagram of a 4 circuit telephone exchange. The 10 telephone lines at each exchange are connected by 4 lines between the exchanges, resulting in potential conflicts but high levels of efficiency.
Phone icon
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Licensing

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
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  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Original upload log

This image is a derivative work of the following images:

  • File:Emblem-base.svg licensed with Cc-by-sa-3.0, GFDL
    • 2009-06-09T11:04:06Z Jacob Hnri 6 48x48 (6639 Bytes) {{Information |Description={{en|1=An emblem base.}} |Source=[[:file:Emblem-important.svg]] |Author=[[User:Jacob Hnri 6|Jacob Hnri 6]] |Date=2009 |Permission= |other_versions= }} [[Category:Tango project]]
  • File:Emblem_phone.svg licensed with Cc-by-sa-3.0
    • 2008-03-16T06:20:19Z G ambrus 48x48 (17749 Bytes) new version
    • 2008-03-16T06:20:09Z G ambrus 48x48 (17749 Bytes) new version
    • 2008-03-16T06:07:17Z G ambrus 43x49 (13690 Bytes) New version
    • 2008-03-16T06:06:14Z G ambrus 744x1052 (20635 Bytes) {{Information |Description=Phone icon |Source=own work, using [[:Image:Emblem-important-red.svg]] and [[:Image:Black telephone icon from DejaVu Sans.svg]] |Date=~~~~~ |Author=~~~ |Permission=see below |other_versions= }} [[C

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3 November 2011

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6838ad2513829f9f9ccc6c3cf48e0ad24d5eb327

198,421 byte

668 pixel

1,046 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current11:42, 3 November 2011Thumbnail for version as of 11:42, 3 November 20111,046 × 668 (194 KB)Bilby== {{int:filedesc}} == {{Information |Description={{en|1=Diagram of a 4 circuit telephone exchange. The 10 telephone lines at each exchange are connected by 4 lines between the exchanges, resulting in potential conflicts but high levels of efficiency.}} P
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