Search: Posts Made By: genner
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Posted By genner

Hello Pete, Ahh yes thanks for catching my...

Hello Pete,

Ahh yes thanks for catching my typo, I meant to type 4229 not 4220.
Ok thats good to know that if I use those form C relays on the 4229 grounding considerations are not needed.
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Replies: 3
Views: 2,040
Posted By genner

Honeywell Vista 20p with Arduino

Hello everyone,
Ground inquiry.....
I have a Vista 20p with a Honeywell 4220 expander. I plan on using the built in relays on the Honeywell 4229 expansion board to drive as trigger input signals...
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