JHCTech KGEC-6300, User Manual

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User’s Manual
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2.3.6 COM
The KGEC-6300 provides 2*COM1/2 with TVS isolated serial ports through the 2* d-sub 9-pin connector.
COM1/2 can be configured as RS232/422/485, Table 2.1 for COM pin assignments.
Picture 2.11: COM
Table 2.7: COM1/COM2 Pin Assignments
Pin RS-232 signal RS-422 signal RS-485 signal
1 DCD TX- DATA-
2 RxD TX+ DATA+
3 TxD RX+ NC
4 DTR RX- NC
5 GND GND GND
6 DSR NC NC
7 RTS NC NC
8 CTS NC NC
9 RI NC NC
2.3.7 Mini PCIe
The KGEC-6300 mainboard (STX-I952) provides 1*Mini PCIe pin spacing 9.9mm interface, with PCIe
X1+USB signal, with dual SIM card slot, support for dual 4G LTE/Wifi/BT/GPS. The Mini PCIe interface
definition is shown in table 2.8.