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E70-DTU (433NW30-GPRS) UserManual

(b) 4G /2G network transparent transmission configuration mode: In this mode, the user can configure the radio 4G/2G network
transparent transmission parameters.

(d) Mode switching: Use the official E70-DTU (433NW30-GPRS) to configure the host computer for mode switching and parameter
configuration. Note that after using the host computer to enter the configuration state, the system is in the configuration mode. At this
time, click the “module restart” button or “enter the communication button”, the system will switch to the communication mode; when
entering the configuration state, the USB cable will be unplugged, the system It will also automatically switch to communication mode.
If you do not click the "Save Parameter" button and the "Module Restart" button in advance, the modified parameters will not take
effect.

2. Base station positioning function;

The E70-DTU (433NW30-GPRS) supports the base station positioning function. Users can use the official E70-DTU (433NW30-GPRS)
configuration software. In the 4G 2G network transparent transmission configuration mode, click the “Query LBS Information” button to
read the current LBS information of the device.

3. Query the signal strength of the network module and the base station. Users can use the official E70-DTU (433NW30-GPRS) configuration

software. In the 4G/2G network transparent transmission configuration mode, click the “Query Signal Strength” button to get the current
signal strength information.

4. Network function

a) Registration package: The registration package is closed by default. The user can configure 4 types of registration packages. You can

choose to send physical addresses when connecting, send custom data when connecting, and add physical addresses before each packet
of data. Each packet is added before the data. Define data. The maximum length of the custom registration packet is 40 bytes (when set
to HEX format, the maximum length is 20 bytes).

b) Heartbeat packet: In the idle state of network communication, the heartbeat packet is used for network state maintenance. The heartbeat

period can be set from 0 to 65535 seconds, and the maximum length of the heartbeat packet is 40 bytes (when set to HEX format, the
maximum length is 20 bytes). Supports two heartbeat types: network heartbeat and serial heartbeat. When the network heartbeat is
selected, the communication idle time starts, and the heartbeat data packet is sent to the server according to the configured heartbeat
period. Select the serial port heartbeat, start timing with communication idle, and send heartbeat packets to the serial port according to
the configured heartbeat period.

c) Clear the cache: Before the connection to the server is established, the data received by the serial port will be cached. When the

connection with the server is established, you can choose whether to clear the cached data. By default, the cache is cleared. The
maximum packet length of the local cache is 256 bytes.

5. Ebyte IoT platform cloud transparent transmission function

Users can use the official E70-DTU (433NW30-GPRS) configuration software. In the 4G/2G network transparent transmission

configuration mode, click the “Cloud Transparent Transmission” option to enable the transparent transmission function of the module.
User-configured heartbeats, registration packets, and other information will be invalid. Users only need to go to the platform to set the
forwarding relationship of the corresponding device to achieve transparent data transmission between devices. For specific operations,
please refer to the "Ebyte Cloud Platform Transparent Transmission Guide".

6. RF function

(1) Radio frequency RSSI: the signal strength indication function. The radio internal radio module supports the packet signal strength

output. Can be used to evaluate radio frequency signal quality, improve communication networks, and ranging.

(2) Networking function: This station can be equipped with E70-433NWxx same frequency series module or E70-DTU (433NW30-xxx)

series radio to realize star networking and build a real Internet of Things model. For details, please refer to “Application Model”.
Introduction to the chapter.

(3) Query its own short address: The upper computer selects the RF mode, and clicks the “self short address” button to query its own short

address.