I've referenced many symbol sheets with no avail.
What would JP5 'AutoON' be here? I assume it's a switch that is default on, but the symbol is foreign to me.
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\$\begingroup\$ May be it can be a symbol of protective relay \$\endgroup\$– AdyOct 14, 2021 at 6:01
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3 Answers
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The symbol and 'JP' label suggest that it is a jumper used to bypass the switch.
Figure 1. A 2-pin jumper on a 5-way pin header. Image source: Sparkfun.
answered Oct 14, 2021 at 6:11
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1\$\begingroup\$ Another use for the jumper pins could also be to install an alternative remote switch, either for integration into a larger system or for automation of the power-on function by a micro or logic controller, etc. \$\endgroup\$– J...Oct 14, 2021 at 14:40
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The JP5 is most likely just a standard jumper block, maybe a standard 2.54mm/0.1" pin header with two pins, allowing the user to use pushbutton manually when jumper is removed or short out the pushbutton permanently by mounting the jumper block.
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It's a circuit breaker symbol used incorrectly to indicate a jumper block. Given that this symbol is quite universal, its misuse is misleading - the schematic's author might as well used no symbol besides the two terminals, and with the JP reference designator it'd have been obvious still what it is.
answered Oct 15, 2021 at 2:24
Kuba hasn't forgotten MonicaKuba hasn't forgotten Monica
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