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Re: "universal" power symbol

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On 10/14/25 7:47 AM, john larkin wrote:
> On Tue, 14 Oct 2025 07:02:07 -0700, Don Y
> <blockedofcourse@foo.invalid> wrote:
> 
>> *NOT* "power switch" but, rather, (electrical) "Power".
>>
>> E.g., to label a connector as carrying (to or from)
>> power while the actual connection details (polarity,
>> AC/DC, etc.) are buried in the "connector" concept.
> 
> I can imagine a schematic sheet with so many of them it would look
> like a thunderstorm.
> 
> 
>>
>> Best suggestion, thus far, has been a lightning bolt
>> (and variations thereon).  But, there is some concern
>> that this may be interpreted to mean "shock hazard",
>> "high voltage", etc.
> 
> What's wrong with a net name and an optional comment on the schematic?
> 
> There are international standards for schematic symbols and reference
> designators, which are often abused. CON4, JMP6, TR7, DIO12, IC3.
> 
>>
>> While were at it, suggestions for "field" connections?
> 
> Comment in plain English.
> 

Plain English is always best IMHO. For power I'd use "POWER" or "MAINS" 
and if not enough space "PWR". Same for field which could be abbreviated 
"FLD". Aircraft cockpits are a good example, they do not have any of 
those nonsensical "pictograms".

I had a Europeanized Chrysler when I was young. One day a yellow light 
below the dash lit up. Looked like a sideways Big Mac and I couldn't 
find it in the manual. Called the dealer, no clue. Went to their repair 
shop, lots of headscratching. After some searching through microfiche 
instructions (no Internet back then) it turned out to be the warning 
signal for insufficient material left on a brake pad.

When that happens on a US car it says "BRAKE" and everyone knows.

-- 
Regards, Joerg

http://www.analogconsultants.com/

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"universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-14 07:02 -0700
  Re: "universal" power symbol "Edward Rawde" <invalid@invalid.invalid> - 2025-10-14 10:13 -0400
    Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-14 12:22 -0700
  Re: "universal" power symbol john larkin <jl@glen--canyon.com> - 2025-10-14 07:47 -0700
    Re: "universal" power symbol Joerg <news@analogconsultants.com> - 2025-10-14 22:22 -0700
      Re: "universal" power symbol john larkin <jl@glen--canyon.com> - 2025-10-15 08:06 -0700
  Re: "universal" power symbol liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-10-14 17:51 +0100
    Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-14 12:20 -0700
      Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-14 12:23 -0700
    Re: "universal" power symbol john larkin <jl@glen--canyon.com> - 2025-10-14 15:06 -0700
    Re: "universal" power symbol Lasse Langwadt <llc@fonz.dk> - 2025-10-15 20:32 +0200
  Re: "universal" power symbol mroberds@att.net - 2025-10-15 04:52 +0000
    Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-14 23:31 -0700
      Re: "universal" power symbol liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-10-16 11:45 +0100
        Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-16 04:41 -0700
          Re: "universal" power symbol liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-10-16 14:00 +0100
            Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-16 06:48 -0700
              Re: "universal" power symbol liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-10-16 17:44 +0100
                Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-16 17:12 -0700
            Re: "universal" power symbol John R Walliker <jrwalliker@gmail.com> - 2025-10-16 20:48 +0100
              Re: "universal" power symbol Jeroen Belleman <jeroen@nospam.please> - 2025-10-16 23:29 +0200
              Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-16 17:58 -0700
      Re: "universal" power symbol mroberds@att.net - 2025-10-17 06:47 +0000
        Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-17 00:57 -0700
        Re: "universal" power symbol john larkin <jl@glen--canyon.com> - 2025-10-17 04:15 -0700
          Re: "universal" power symbol mroberds@att.net - 2025-10-19 01:49 +0000
  Re: "universal" power symbol brian <nospam@b-howie.co.uk> - 2025-10-15 09:47 +0100
    Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-15 02:12 -0700
      Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-15 16:12 -0700
        Re: "universal" power symbol Theo <theom+news@chiark.greenend.org.uk> - 2025-10-17 14:48 +0100
          Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-17 14:04 -0700
            Re: "universal" power symbol Theo <theom+news@chiark.greenend.org.uk> - 2025-10-18 11:40 +0100
              Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-18 07:26 -0700
  Re: "universal" power symbol Jeff Layman <Jeff@invalid.invalid> - 2025-10-15 13:28 +0100
    Re: "universal" power symbol Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2025-10-15 13:17 +0000
  Re: "universal" power symbol liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-10-18 16:15 +0100
    Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-18 08:35 -0700
      Re: "universal" power symbol liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2025-10-18 17:09 +0100
        Re: "universal" power symbol Don Y <blockedofcourse@foo.invalid> - 2025-10-18 09:18 -0700
      Re: "universal" power symbol john larkin <jl@glen--canyon.com> - 2025-10-18 09:32 -0700

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