Of rn...@san.rr.com
Sent: Tuesday, July 10, 2007 12:50 PM
To: Kunde, Brian; emc-p...@ieee.org
Subject: RE: Symbol on power button
Hi Other Brian:
You raise some interesting points.
With regard to IEC 5009...
You describe the function as when the switch
is operated, the "sta
n
Sent: Tuesday, July 10, 2007 8:32 AM
To: Scott Xe; emc-p...@ieee.org
Subject: RE: Symbol on power button
The standby symbol as well as several others are being used incorrectly
according to the original intent, but due to the lack of a better symbol, they
are being used to indicate a logical on/
Hi Scott:
The symbols for "on" (1) and "off" (0) originated
in the days of the CEE (Europe) standards.
In those days, radios and other appliances were
built with big rotary switches, that ALSO turned
on the power. On a radio, the switch had numbered
positions which represented the receiv
The standby symbol as well as several others are being used incorrectly
according to the original intent, but due to the lack of a better symbol, they
are being used to indicate a logical on/off instead of its intended
relationship with the disconnection or non-disconnection from the AC Mains.
I
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