LAN control module

I want to introduce you to my old development, but which will be interesting at the present time.

The local area network control module is designed to convert (transform) commands transmitted over a twisted pair cable (LAN) into commands transmitted via RS-232 (com-port) and IR (infrared) channels.

Serial interfaces RS-232/422/485 are still very popular and in demand both in industry and in various home systems. However, serial interfaces have their limitations, such as short distances. Sometimes there is a need to access a device with RS-232 (RS485) from several remote computers at the same time.

The control module can unite and include in a single network unmanaged devices in both home and commercial systems. With a large number of ports and inputs needed at the same time, the adapter provides an easy way to control a variety of devices, reducing installation time and complexity. By simply sending commands over the local network or via IR ports, you can control your audio and video equipment (turn on, adjust, control the volume …), as well as start your favorite DVD movie. And all this will happen at the touch of a button.

When using open standards (eg TCP/IP), any network device (computer, touch panel, central controller) can send and receive module data. With it, you can connect various devices for control and monitoring (monitoring) both via your home network and via the Internet.

The device has an easy intuitive interface for configuration and settings. I will give the settings for the IR control interface

The control module converts serial physical protocols into IP packets and allows you to programmatically manage them – connect a remote virtual COM port to a computer over the network as if it were physically connected, and transparently connect several devices in P2P mode, without using computers. The use of POE power allows you to power the device over the LAN.

The scheme of the device is very simple and reliable, the dimensions of the device are slightly larger than a matchbox.

On the presented photos is a variant of the device with RS485. If an RS232 port is needed, then the MAX232 chip is installed on the existing seat. The choice of interface is carried out during production. The board provides connection points for additional inputs and outputs to control various equipment.

I constantly take it with me to objects, since very often you need to set up various equipment. The LAN control module is more convenient to use than USB-COM adapters (RS232, RS485).

Here is such a control module turned out. As the saying goes: “small – yes daring.”

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