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Input Connections (continued)
Contact is 'Normally Open'. Input is normally at 0 volts.
When contact closes the input becomes +12 volts.
Contact is 'Normally Closed'. Input is normally at 0 volts.
When contact opens the input becomes +12 volts.
Contact is 'Normally Open'. Input is normally at 0 volts.
When contact closes the input becomes +12 volts.
Control Panel Switched Output is 0 volts changing to a positive voltage
APPENDIX 2
Examples of 'Positive Applied' triggering
Examples of 'Positive Applied' triggering
Power
Supply
Example of 'Positive Applied' triggering
Control
Panel
Example of 'Positive Applied' triggering
40
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