Overview:
RS232 to Ethernet, 5~18V power supply, one-button setting parameters, AT means to modify the module parameters in real time, automatically obtain IP, one button to restore factory settings. The module is a universal serial-to-Ethernet transparent transmission device, which can be connected to MCUs such as 51, AVR, PIC, ARM, etc. or other serial port (TTL) devices.
Features:
- Support 5V or 3.3V power supply, choose one;
- Serial TTL level, pin IO compatible with 3.3V and 5V voltage;
- Serial port baud rate supports 300 ~ 921600bps;
- The serial port supports full-duplex and half-duplex serial communication, and supports RS485 transceiver automatic switching;
- Two-way transparent transmission of serial data and network data;
- Support MDI/MDIX polarity automatic conversion, cross-connect or directly connect the network cable to any connection, the module automatically switches;
- Support DHCP to automatically obtain IP address and support DNS domain name access;
- Support KEEPALIVE mechanism;
- Support virtual serial port software, virtualize the network port into a computer COM port;
- Working mode supports TCP CLIENT, TCP SERVER, UDP CLIENT and UDP SERVER 4 modes;
- Supports 10/100M, full-duplex/half-duplex adaptive Ethernet interface, compatible with 802.3 protocol;
Set the serial port and network parameters of the chip through software and serial commands, and save the parameters after power off;
- Search and query all devices in the LAN through the UDP broadcast protocol to facilitate unified management of devices;
Speciications:
Ethernet Parameters:
Number of ports: 1
Interface standard: RJ45 interface
LAN Ethernet: 10 / 100Mbps
Data cache: 6K bytes
Protection: 2KV electromagnetic isolation
Network protocols: IP, ARP, TCP, UDP, ICMP, IGMP, DCHP and so on
Serial Port Parameters:
Number of ports: 1
Interface standard: TTL serial port, 2.54MM pin, 3.3V or 5V level
Baud rate: 300 ~ 921600bps
Data bits: 5,6,7,8,9
Stop bit: 1,2 bit
Parity: no parity, odd parity, even parity
Flow Control: None
Cache: 2K bytes
Supporting Software:
Parameter configuration: network configuration software, serial AT command
Module testing: test software (network, serial one)
Basic Parameters:
Size 43mmx23mmx14.5mm (length x width x height)
Working voltage DC3.3V / 5V
Operating current 200mA @ 5V
Power consumption ≤ 1W
Operating temperature -40 ~ 85 ° C
Storage temperature -55 ~ 125 ° C
Pin Description:
1. RESET: Factory reset pin, the module power-on detection, active low
2. DIR: RS485 receive, send switch control pin
3. TCPCS: TCP client mode, the port connection status indicator pin, the connection is successful output low
4. RUN: module running status indication pin, input 2Hz square wave
5. GND: Power Ground Pin
6. 3.3V: 3.3V DC power input pin, greater than 200mA, and 5V DC power supply optional
7. GND: Power Ground Pin
8. 5V: 5V DC power input pin, greater than 200mA, and 3.3V DC power supply can choose one of two
9. RSTI: reset pin, the internal pull-up, low-effective, can not be vacant
10. CFG: serial port configuration module enable pin, built-in pull-up, low-effective, do not have to be vacant
11. RXD: Serial data receive pin, serial port TTL level, compatible with 3.3V and 5V
12. TXD: serial data transmission pin, serial TTL level, compatible with 3.3V and 5V
13. GND: Power Ground Pin
14. 3.3V: 3.3V DC power input pin, greater than 200mA, and 5V DC power supply optional
15. GND: Power Ground Pin
16. 5V: 5V DC power input pin, greater than 200mA, with the optional 3.3V DC power supply can be.
Package Included:
1 x CH9121 Serial Port RS232 to Ethernet Network Module
