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Comfort Automation/ Security System Forums Products Questions on Using Comfort Pull up Resistore

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Pull up Resistore
engmoabel Offline
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#1
12-14-2008, 08:00 AM
In the siren(jp9) ,why we put a 1K-ohm pull up resistor?

NOTE:

This question in Comfort 2 Installation Manual .
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admin Offline
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#2
12-14-2008, 08:19 AM
The pullup resistor is recommended to be connected as some sirens make a low sound when not activated due to a low voltage supplied to the siren
It may not always be needed but it will not do any harm
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