This type of Power Line Communication Modem is using IC TDA 5051. This IC is a modem IC, specifically dedicated to ASK transmission by means of the home power supply network, at 600 or 1200 baud data rate. It operates from a single 5 V supply.It is able to control home appliances and provides full digital carrier generation and shaping. The block diagram of the IC and the pin connection are as below:
Figure 1: Block Diagram
Figure 2: Pin Connection of the IC
This is the actual connection of the PLC modem trainer which is available in the lab room.
Figure 3: The connection of PLC Modem
Figure 4: The actual trainer
At the same time, I need to configure the PLC modem by using Hyper Terminal. All of the connections are as below. The modem is connected to the laptop using serial port and was set to comm 3 in order to connect to the hardware. Once the signal is transmitted, the lamp will turn on simultaneously.
Figure 5: The connection of Hyper Terminal and hardware
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