Ontech GSM Mini 9009, User Manual

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Remove the back cover gently.
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Locate the DIP-switch (see below)
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Switch no 1 is used to set the mode (OFF=NO and ON=NC)
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Use a small screwdriver to change position on desired switch.
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Replace the back cover.
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Replace the four screws.
Suggestion for connection of alarm detector NO mode
Suggestion for connection of alarm detector NC mode
A+ B+ B- A-
Sensor B Sensor A
9V
9V
A+ B+ B- A-
Sensor B Sensor A
9V 9V