The **TPC-312-R873A** is an industrial Touch Panel PC manufactured by Advantech. It is designed for human-machine interface (HMI) applications in harsh industrial environments. --- ### 1. Core Computing Specifications The "brain" of the device consists of high-efficiency embedded components designed for low power consumption and stability. | Component | Specification Details | | :--- | :--- | | **Processor (CPU)** | Intel® Atom™ E3845 Quad-Core (1.91 GHz) | | **Memory (RAM)** | 4GB DDR3L SDRAM (SO-DIMM) | | **Graphics** | Integrated Intel® HD Graphics | | **Storage Support** | 1 x mSATA slot and 1 x 2.5" SATA HDD/SSD bay | --- ### 2. Display and Touch Interface The front panel integrates the visual output and the user input electronics. * **LCD Panel:** 12.1" XGA TFT LCD with a resolution of 1024 x 768. * **Touch Controller:** 5-wire resistive touch sensor. This electronic layer is ideal for industrial use as it can be operated with gloves and is resistant to environmental contaminants. * **Backlight:** LED-based, offering a long lifespan (approx. 50,000 hours). --- ### 3. Connectivity and I/O Ports The electronic layout includes several peripheral interfaces for industrial automation. | Port Type | Quantity | Purpose | | :--- | :--- | :--- | | **Ethernet (LAN)** | 2 x 10/100/1000 Mbps | Real-time data exchange and networking | | **USB Ports** | 1 x USB 3.0, 1 x USB 2.0 | Connecting peripherals or storage | | **Serial Ports** | 1 x RS-232, 1 x RS-232/422/485 | Communication with PLCs and legacy sensors | | **Expansion Slot** | 1 x Full-size Mini PCIe | For Wi-Fi, Bluetooth, or Fieldbus modules | --- ### 4. Power and Environmental Protection The electronic design emphasizes durability and protection against power fluctuations. * **Input Voltage:** 24VDC (±20% range). * **Power Consumption:** Typically around 18W to 25W depending on load. * **Isolation:** The serial ports often feature isolation to prevent damage from ground loops or electrical surges. * **Ingress Protection:** The front bezel is **IP66 rated**, meaning the electronics are protected against dust and high-pressure water jets. --- ### 5. Mechanical & Thermal Design * **Fanless Design:** The electronics are cooled via passive heat sinks. This prevents dust intake and increases the Mean Time Between Failures (MTBF). * **Chassis:** Die-cast aluminum alloy which acts as a giant heat spreader for the internal components.