File:Crossbar-hy1.jpg
Jump to navigation
Jump to search
Size of this preview: 800 × 397 pixels. Other resolutions: 320 × 159 pixels | 640 × 318 pixels | 1,024 × 508 pixels | 1,280 × 635 pixels | 2,727 × 1,353 pixels.
Original file (2,727 × 1,353 pixels, file size: 829 KB, MIME type: image/jpeg)
Captions
Captions
Add a one-line explanation of what this file represents
Summary[edit]
100-point, 6-wire crossbar switch. Manufactured by Western Electric April, 1970, near the end of the Type B production run. Similar switches were used in Incoming Register Links and other subsystems not part of the regular voice fabric. Note the Vertical Off Normal contacts above each hold magnet. The Horizontal Off Normal contacts were housed under transparent covers, to the left of the left butterfly magnets and to the right of the right butterflies.
Licensing[edit]
|
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:03, 9 November 2007 | | 2,727 × 1,353 (829 KB) | Yeatesh (talk | contribs) | 100-point, 6-wire crossbar switch. Manufactured by Western Electric April, 1970. |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikipedia.org
