So this is what I design:
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It can work in 3 modes:
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Grich tester mode : |
Allows to see if data and power is coming from Grinch chanel. Appropriate LED is
on.
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SSR tester mode : |
Allow to turn on SSR channels 1-4 using jumpers. Use independent power supply (compatible
with Gring power connector) also possible to connect 3 AA and use it as
mobile tester.
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Pass-throw mode : |
Pass signals from Grinh to SSR and also turns channels and power LED on tester. If
Grinch is not sending signals, jumpers could turn SSR channels (if power coming
from Grinch)
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