Wiegand Device
If the power source is 12VDC, the Wiegand device can share the same power source as GDS370x. However, users need to
check the max power consumption and the max capability of the power source.
If Wiegand device is using 5VDC, GDS370x Wiegand port can provide 5VDC with max 500mA to power up Wiegand device.
Output example with 3 party power supply for Wiegand device
Figure 25: Wiegand Output Wiring Example
When the Wiegand output of the GDS370x is connected, it acts as the signal receiver of the 3 party Wiegand device,
connecting to the door controller. The major wiring is GND, D0, and D1. Because usually, the door controller will consume a
big current and power, the power supply shouldbe separated.
Wiegand RFID Card Reader Example
Figure 26: Wiegand RFID Card Reader Example
Siren alarming when the door opened abnormally
When this feature is enabled (special wiring required, see below wiring diagram), an abnormal open door will be detected by
the DI port (Alarm_In2 or IN2 in the below diagram showed) if wired correctly (connecting the COMx port to DIx port)
therefore trigger the siren alarm. Once an abnormal open door alarm is triggered, the siren will sound non-stop, until
manually overridden by a related person.
There are several ways to stop and disable the alarm:
rd
rd
Note
The RFID card scan on the GDS is supported only on the GDS3705 Model.
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