5.1 Connect the keypad to the Gate/Door opener with power on the board, when
power from the board connected directly to TC175P.
5.2 Connect the keypad to the Gate/Door opener without power on the board,
when using external power supply for TC175P.
In this situation, you need an external 12-24VDC power source to make the
keypad to work with the gate & door opener.
6. Programming
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There are three kinds of passwords while programming: programming
password, access password, card password.
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User ID is auto-generating 4-digit number started at 0001. The number