Product Descriptions

E840-TTL (4G02-DNC) is an LTE data transmission module product, which has complete software functions and covers the vast majority of conventional application scenarios. E840-TTL (4G02-DNC) is a product developed to enable serial devices and network servers to transmit data to each other through the network. This product is an LTE-FDD/LTE-TDD/WCDMA/TD-CDMA/CDMA/GSM wireless communication data transmission module with diversity reception function, supporting LTE-FDD， LTE-TDD， DC-HSDPA， HSPA+， HSDPA，HSUPA， WCDMA， TD-SCDMA，CDMA， EDGE  By connecting to GPRS network data, users can achieve transparent bidirectional data transmission from the serial port to the network server through simple settings.

The module uses a 2.0mm pin arrangement for easy integration of customer devices and is powered by a wide voltage range of 5V to 18V. Supports 4G cards from China Mobile, China Unicom, and China Telecom, with compatible communication and LED indicators. The default voltage is 3.3V, which can be used at 5V level. It has anti-interference ability and can be used in environments with strong electromagnetic interference, such as the power industry. This chapter is a quick introduction to the E840-TTL (4G02-DNC) product, which aims to build the simplest hardware environment to test the network transmission function of E840-TTL (4G02-DNC), that is, to achieve bidirectional data transmission from serial devices (referring to computers) to network servers.

Product Features

• Capable of meeting almost all M2M application requirements.

• Supports transparent data transmission, supports TCP and UDP network protocols, supports heartbeat packet and registration packet functions, with a maximum packet length of 80 bytes.

• Supports MQTT protocol and supports access to Baidu Cloud platform, Alibaba Cloud platform, and OneNet platform.

• Supports bidirectional transmission from devices to network servers with serial port baud rates of 230400 and below.

• Support serial port ultra large cache function, serial port data can be cached locally before establishing a connection with the server.

• Support SMS sending and receiving, SMS remote query/configuration of device parameters.

• Supports simultaneous transmission and reception of multiple Socket links.

• Supports automatic interconversion between Modbus RTU and Modbus TCP.

• LTE-FDD: maximum downlink speed of 150Mbps, maximum uplink speed of 50Mbps, LTE-TDD: maximum downlink speed of 130Mbps, maximum uplink speed of 35Mbps.

• Software/hardware dual gate design ensures system stability and never crashes.

Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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