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![](https://files.manualsfile.com/20715629-ds-k3y220x/bg1c.png)
Note
●
RS-485A corresponds to port 5 on web and is for QR code scanner connecon by default;
RS-485C corresponds to port 7 on web and is for card reader connecon by default.
●
The SOC and MCU serial port are for maintenance and debugging use only.
●
Press the Reset
buon for 5 s and the device will start to restore to factory sengs.
●
The DIP switch is for study mode
seng and keyfob paring. For detailed informaon about the
DIP switch, see
DIP Switch .
The wiring diagram of extended interface of access control board is shown as follows.
DS-K3Y220(L)X Series Flap Barrier User Manual
15
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