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Here we look at the correct way to use plugs and cords on the switchboard. Opposite is a typical continental/intercontinental board layout. Far left of photo the Visible Index File (VIF). |
Plugs and Cords
Here we look at the correct way to use plugs and cords on the switchboard.
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Here is the plug shelf, 2 rows of 8 plugs. The plugs should be grasped firmly by the grey plastic sleeve, between thumb and forefingers. |
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The stretch required to reach the top row of sockets is not excessive. As can be seen from the ruler, the overall height is about 18" (approx 450mm). The tension on the cords is maintained by a system of pulleys in the lower part of the board. |
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Plugs should always be held by the plastic sleeve and NEVER by the cord end. The point at which the cord enters the plug is most prone to bending stress and eventually, even with normal use, the conductors within, break down and give rise to a noisy connection. |
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By using the correct angle, the plugs will easily fit into the jackfield without unnecessary pressure and only a gentle force is needed to maintain the grip between thumb and forefingers. |
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The tension in the cord prevents it getting tangled and automatically returns it to the home position once the call is ended and the plug is removed. |
Page last updated 21st July 2012.Checked May 2021.
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