SPECIFICATIONS

Brand Name: W

Choice: yes

Condition: New

Model Number: CH9121

Origin: Mainland China

Type: Module

semi_Choice: yes

WCH network RS232 serial port transparent transmission module (WCHNST21), through the network to RS232 serial port, can realize the two-way transparent transmission of network data and serial port data, with TCPCLIENT, TCP SERVER, UDP SERVER, UDP CLIENT four modes of operation. Serial port baud rate can support up to 230400bps, can be easily configured through the upper computer software, convenient and fast.

RSTI-- -- Input -- -- External reset input, active low

RESET-- input -- restores factory Settings. The chip is powered on and detected. The low level is valid

RX1-- -- Input -- Indicates the serial data input of the chip TTL asynchronous serial port

TX1-- -- Output -- Indicates the serial data output of the TTL asynchronous serial port on the chip

GND-- Power supply -- common ground terminal

5V-- Power Supply -- The power input is 5V

RUN- Output - Indicates the normal running of the chip

TCP CLIENT mode:

In TCPCLIENT mode, after the module is powered on, it will actively connect to the TCP SERVER. After the connection is established, two-way transparent transmission of network data and RS232 serial port data can be realized. The TCP client application model is as follows, which is suitable for field data collection and upload server mode.

TCP SERVER mode:

In TCP SERVER mode, after the module is powered on, it will monitor whether there is a client request to connect to the local port. After the connection is established, the bidirectional transparent transmission of network data and RS232 serial port data can be realized.

UDP CLIENT mode:

In UDPCLIENT mode, after a module is powered on, the data destined for the local port (from the destination IP address and port) is transparently forwarded to the RS232 serial port of the module. Similarly, the data destined for the serial port of the module is also forwarded to the specified destination IP address and port through UDP.

UDP SERVER mode:

In UDPSERVER mode, all data sent to the local IP address and port is received and forwarded to the RS232 serial port. Data sent to the module serial port is also forwarded by UDP to the UDP IP address and port with which it communicates.

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WCH network RS485 serial port transparent transmission module (WCH NST41), through the network to RS485 serial port, can realize the two-way transparent transmission of network data and serial port data, with TCP CLIENT, TCP SERVER, UDP SERVER, UDP CLIENT four modes of operation. Serial port baud rate can support up to 921600bps, can be easily configured through PC software, convenient and fast.

Supports 10/100M automatic switching of MDIX lines

RSTI-- -- Input -- -- External reset input, active low

RESET-- input -- restores factory Settings. The chip is powered on and detected. The low level is valid

RX1-- -- Input -- Indicates the serial data input of the chip TTL asynchronous serial port

TX1-- -- Output -- Indicates the serial data output of the TTL asynchronous serial port on the chip

GND-- Power supply -- common ground terminal

5V-- Power Supply -- The power input is 5V

RUN- Output - Indicates the normal running of the chip

TCP CLIENT mode:

In TCP CLIENT mode, after the module is powered on, it actively connects to the TCP SERVER. After the connection is established, the bidirectional and transparent transmission of network data and RS485 serial port data can be realized. The TCP client application model is as follows, which is suitable for field data collection and upload server mode.

TCP SERVER mode:

In TCP SERVER mode, after the module is powered on, it monitors whether the local port has a client request for connection. After the connection is established, the bidirectional transparent transmission of network data and RS485 serial port data can be realized.

UDP CLIENT mode:

In UDPCLIENT mode, after a module is powered on, data destined for the local port (from the destination IP address and port) is transparently forwarded to the RS485 serial port of the module. Similarly, data destined for the serial port of the module is also forwarded to the specified destination IP address and port through UDP

UDP SERVER mode:

In UDPSERVER mode, all data sent to the local IP address and port is received and forwarded to the RS485 serial port. Data sent to the serial port of the module is also forwarded to the UDP IP address and port communicating with the module through UDP