1. Parameter Specifications

• Power Supply: The LE109A - 1 operates on a 12 - 24V DC power supply, with a low power consumption of around 3 - 5W, making it energy - efficient.
• Input/Output Configuration:
• Digital Inputs: It has 6 digital inputs. These inputs can receive signals from digital sensors such as magnetic switches and infrared sensors. The input voltage range is 3 - 24V DC.
• Digital Outputs: There are 4 digital outputs. Each output can handle a maximum current of 0.5A, suitable for driving small relays or LEDs.
• Analog Inputs: There are 2 analog inputs. They can accept signals in the range of 0 - 5V, with a 10 - bit resolution for measuring analog quantities like voltage or sensor - based signals.
• Analog Outputs: 1 analog output is available, capable of outputting a 0 - 5V signal for simple analog control tasks.
• Communication Interface: It features an RS - 232 communication interface, which allows for serial communication with other devices. The baud rate can be set up to 9600 bps.

2. Applications

• Home Automation: In home settings, the LE109A - 1 can be used to control lighting systems, monitor door and window status (using magnetic switches), and adjust the brightness of indoor lights based on ambient light levels.
• Small - scale Industrial Automation: For small - scale industrial processes, it can control the operation of small motors, monitor the status of conveyor belts (using proximity sensors), and perform basic process control tasks.
• Educational Purposes: It is suitable for educational institutions to teach students about basic control systems, input - output operations, and communication protocols.

3. Weight and Dimensions

• Weight: The unit weighs approximately 0.05 kg, which is extremely light and easy to install.
• Dimensions: The overall dimensions are: length - 40mm, width - 30mm, height - 5mm. Its ultra - compact size makes it ideal for applications with limited space.

4. Features

• Compact Design: Its small size allows for easy integration into various devices and systems, especially in applications where space is at a premium.
• Low - power Consumption: The low power requirement makes it suitable for battery - powered applications or long - term continuous operation without significant energy costs.
• Simple Configuration: The LE109A - 1 has a straightforward configuration process. Users can easily set up input/output parameters and communication settings through its RS - 232 interface.

5. Stability and Reliability

• Reliable Components: The device uses high - quality electronic components, which ensures stable operation over a long period.
• Electrical Protection: It is equipped with basic electrical protection features, such as over - voltage and over - current protection, to prevent damage from electrical faults.
• Environmental Resistance: The enclosure provides a certain degree of protection against dust and moisture, allowing it to operate in normal indoor environments.

6. Real - world Examples

• Smart Home Lighting System: In a smart home, the LE109A - 1 is connected to a series of LED lights. It receives signals from a light sensor (analog input) and adjusts the brightness of the lights (analog output) according to the ambient light level. It also controls the on/off state of the lights based on the status of a motion sensor (digital input).
• Miniature Conveyor System in a Workshop: In a small - scale workshop, the LE109A - 1 is used to control a miniature conveyor belt. It receives signals from a proximity sensor (digital input) to detect the presence of objects on the conveyor. Based on these signals, it controls the motor of the conveyor (digital output) to start or stop the movement of the belt.