Proroute
GEM
2M
4G
Router
GEM-2M series User Manual
117
3.2.7 Communication
Bus
The GEM-2M series provides the RJ12 female port for various serial communication
use through connecting the RS-232 or RS-485 serial device to an IP-based Ethernet
LAN. These communication protocols make user access serial devices anywhere
over a local LAN or the Internet easily.
You can finish all related configurations of serial port in this section.
3.2.7.1 Port Configuration
Before using the function of Virtual COM or Modbus, you need to configure the RJ12
female port first.
1. Operation Mode:
Choose the purpose of serial port. It can be “Virtual COM” or
“Modbus”. You can also disable it to prevent anyone connects a unknown serial
device to this gateway.
2. Interface:
Choose RS-232 or RS-485.
3. Baud Rate:
Set the baud rate (bps) of serial port. The value can be 9600, 19200,
38400, 57600, or 115200.
4. Data Bits:
Choose 7 or 8 as the data bit.
5. Stop Bits:
Choose 1 or 2 as the stop bit.
6. Flow Control:
Choose
RTS/CTS, DTS/DSR for flow control, or none.
7. Parity:
Choose None, Even or Odd.
3.2.7.2 Virtual COM
Create a virtual COM port on user’s PC/Host and provide access to serial device
