Data Transmission Method; Output Mode Of Receiving Data - Ebyte E180-DTU(Z20-ETH) User Manual

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3.2.1.2 Router

The router allows other nodes to be connected to the routing device to expand the coverage of the network. Its main task is

to forward messages, relay routing, and have all the functions of the terminal equipment. If there are multiple paths from one

node to another node, when one of the paths fails, the network automatically adjusts to the other optimal path for transmission to

ensure that the data arrives. The router can build its own network or join someone else's network. The router is always active, so

it must be powered by the main power source.

3.2.1.3 Terminal

The main task of the terminal equipment is to send and receive messages, and it does not allow other terminal nodes to be

connected to the terminal equipment. The terminal is always in a working state and can receive and send data at any time.

3.2.2 Data transmission method

E180-DTU (Z20-ETH) sends three kinds of data transmission methods, including unicast, broadcast and multicast.

3.2.2.1 Broadcast mode.1

In the broadcast mode, the transmitting device sends the data received by the serial port to each node in the network

(including itself), and all the devices in the network will receive the data.

3.2.2.2 Hoost mode.2

In the multicast mode, the group number is set (grouped) for the devices in the network, the sending device must specify

the target group number (which group to send data), and then the sending device sends the data received by the serial port to the

network, and the device with the same group number in the network will receive the data.

3.2.2.3 Monocast mode.3

In the unicast mode, the device in the network conducts point-to-point communication through the network address, and the transmitting

device sends the received data to the target address device, and the target address device can return an ACK to the transmitting device to

indicate that the data has been received.

The receiving data output mode refers to the mode of the network output data when E180-DTU (Z20-ETH) receives the

wireless data;

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E180-DTU(Z20-ETH) User Manual

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