With the continuous development of Internet of Things technology, serial to 4G modules have been applied to all walks of life. The serial port to 4G module is a terminal device that realizes wireless long-distance transmission of serial port data based on 4G network. It provides the serial port to 4G wireless network function, allowing the serial port device to communicate with remote IP devices through the 4G wireless network, realizing RS485 serial port data and 4G Bidirectional transparent transmission of network data.
Functions of serial port to 4G module
● It adopts industrial-grade ARM processor to ensure the reliability of data transmission. It has built-in software and hardware dual watchdogs and has strong anti-interference ability.
● Supports IP address or DNS domain name access, supports fixed IP and dynamic domain name resolution, and supports one-to-one/one-to-many networking.
● Supports JSON protocol, Modbus RTU/TCP protocol adaptation, and TCP_Client/MQTT_Client.
● Supports special functions such as setting time points to trigger actions, data triggering, and scheduled reporting.
● Supports remote configuration and remote upgrade, and the host computer supports import and export of configuration files.
● Supports 5~36V wide voltage input, and the serial communication rate supports 600~921600bps.
Parameters of serial port to 4G module
| Parámetros de red | ||
| frequency band | Parámetros eléctricos | |
| LTE-FDD | B1/B3/B5/B8 | Clase 3 (23 dBm ±2 dB) para bandas LTE-FDD |
| LTE-TDD | B34/B38/B39/B40/B41 | Clase 3 (23 dBm ±2 dB) para bandas LTE-TDD |
| GSM | 900/1800MHz | Clase E2 (27 dBm ±3 dB) para EGSM900 8-PSK |
| Clase E2 (26 dBm ±3 dB) para DCS1800 8-PSK | ||
| Clase 4 (33 dBm ±2 dB) para EGSM900 | ||
| Clase 1 (30 dBm ±2 dB) para DCS1800 | ||
| data | ||
| LTE-FDD | Máx. 10 Mbps (DL)/Máx. 5 Mbps (UL) | |
| LTE-TDD | Máx. 7,5 Mbps(DL)/Máx. 1 Mbps(UL) | |
| EDGE | Máx. 236,8 Kbps(DL)/Máx. 236,8 Kbps(UL) | |
| GPRS | Máx. 85,6 Kbps (DL)/máx. 85,6 Kbps (UL) | |
| Sensibilidad | ||
| DDF B1 | -97,5 dBm | |
| DDF B3 | -94,3 dBm | |
| DDF B5 | -97 dBm | |
| DDF B8 | -96,5 dBm | |
| TDD B34 | -96,3 dBm | |
| TDD B38 | -97 dBm | |
| TDD B39 | -96,3 dBm | |
| TDD B40 | -97 dBm | |
| TDD B41 | -96 dBm | |
| EGSM900 | -105 dBm | |
| DCS1800 | -106 dBm | |
| puerto serie | ||
| Número de puertos | RS485*1 | |
| estándar | RS485:A,B | |
| velocidad en baudios | 600～921600bps | |
| bits de datos | 8,9 | |
| Bit de parada | 0.5 , 1 , 1.5 , 2 | |
| Dígito de control | NINGUNO | |
| power supply | ||
| Tensión | 9~36V | |
| actual |
60mA(aver) @9V 30mA(aver) @36V |
|
| EMC | ||
| ESD | IEC61000-4-2, Nivel 4 | |
| sobretensión | IEC61000-4-2, Nivel 3 | |
| pulso de grupo | IEC61000-4-2, Nivel 3 | |
Applicable scenarios for serial port to 4G module
The serial port to 4G module is very suitable for application scenarios that require long-distance transmission. Through the 4G network, remote communication can be carried out regardless of the distance. It can be widely used in projects such as electric power, energy, water affairs, agriculture, industrial control, self-service terminals, smart oil fields, and smart buses.