
TC3XYMT/TC3XYNT Starter Guide (Version 1.04.1)
Keyking International Limited
Suite 3, 12/B Wissotzky St., Tel Aviv, 62338, Israel
Tel: (972)-3-5464256 Fax: (972)-3-5464259 Website: www.key-king.com
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2. Connect the controller to PC
Based on project and kind of controller you may decide which method to connect controller to
PC. There are 3 methods, the TC3XYNT supports RS232/RS485/TCP, the TC3XYMT supports
RS232/RS485.
2.1.Setup the ID of Controller
-There are 8 switches on the top of controller board.
-Switch 1 to Switch 7 used to define the ID of controller. They are according to binary
for example: S1=ON, S2=…=S7=OFF meaning ID=1
S1=S2=ON, S3=…=S7=OF meaning ID=3
-After changing status of those switches, please press and hold the reset button (next to
battery) within 5 seconds or turn OFF and then turn ON the controller again.
-When pressing the controller will reset all input, output includes ID setting.
-To make a super reset which clear all data and setting please change switch 8 to ON
then press and hold the Reset button within 5 seconds.
2.2.Connect the TC3XYMT/TC3XYNT to PC directly through RS232.
-Connect DB9 connector to controller using 3 wires:
•Connect RxD of COM port to TX of controller.
•Connect TxD of COM port to RX of controller.
•Connect GND of COM port to GND of controller.
-DB9 PINOUT:
Pin No. Name Notes/Description
1 DCD
2 RD Receive Data (RxD, Rx)
3 TD Transmit Data (TxD, Tx)
4 DTR
5 SGND GND
6 DSR
7 RTS