GTM1 User manual V-2020-08-12
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4.8.1
Wiegand Keypad & RFID Card Reader, iButton Probe Wiring & Programming
Wiegand keypad specifications:
26bit Wiegand (Default);
8bit key press code
Maxim-Dallas iButton keys (iButton DS1990A
– 64 Bit ID)) can be used to ARM/DISARM security
panel or control selected output. Up to 800 iButton keys can be assigned to the system.
The First iButton key may be learned (recorded) by touching it to the reader. Without the need to send
any SMS. The system will notify about successfully recording of the key into memory by shortly beeping
twice via buzzer. The system will automatically assigns control function (ARM/DISARM).
The first key is the main key (MASTER) The total length of the bus from 10 to 100 m. Depending of
cable quality, and environment noise. If LED is without resistor. External 4.7k
– 10k resistor required.
Figure 84 SERA2> Outputs (PGM)
If you want to edit existing configuration, You
have to read it (press “Read” in the command line)
Edit settings,
Write edited configuration (press “Write” in the command line)
Figure 81 Wiegand keypad wiring
Figure 83 iButton probe connection
Figure 82iButton probe connecting diagram
