The **EPC-R3220** is an industrial-grade RISC-based Box Computer developed by Advantech. It is specifically designed for AIoT (Artificial Intelligence of Things) applications, edge computing, and industrial automation. Below is a breakdown of its key electronic components and technical specifications. --- ### 1. Core Processing Unit The heart of the EPC-R3220 is based on the **Rockchip RK3399** SoC (System on Chip), which utilizes a Big.Little architecture to balance performance and power efficiency. | Component | Specification | | :--- | :--- | | **CPU** | Dual-core Cortex-A72 (up to 1.8GHz) + Quad-core Cortex-A53 (up to 1.4GHz) | | **GPU** | ARM Mali-T860MP4 | | **VPU** | 4K VP9 and 4K 10-bit H265/H264 video decoders (up to 60fps) | --- ### 2. Memory and Storage The device uses high-speed integrated memory and industrial-grade flash storage to ensure reliability in harsh environments. * **System Memory:** 2GB / 4GB LPDDR4 RAM. * **Onboard Storage:** 16GB / 32GB eMMC Flash (used for OS and critical applications). * **Expansion Storage:** 1 x MicroSD slot for additional data logging. --- ### 3. Connectivity and I/O Interfaces The EPC-R3220 is highly modular, featuring a variety of electronic interfaces for industrial sensors and peripherals. #### Networking * **Ethernet:** 2 x GbE (Gigabit Ethernet) RJ45 ports. * **Wireless:** M.2 Key-E slot for Wi-Fi/Bluetooth modules and Mini-PCIe slot for 4G/LTE cellular modules. #### Wired Interfaces * **USB:** 1 x USB 3.0, 1 x USB 2.0, and 1 x USB OTG (for debugging/firmware). * **Serial Ports:** 2 x RS-232/422/485 (DB9 connectors). * **Display:** 1 x HDMI (up to 4K resolution). * **GPIO:** 8-bit General Purpose Input/Output for direct hardware control. --- ### 4. Power and Environmental Design The electronic circuitry is ruggedized to handle industrial power fluctuations and temperature extremes. | Feature | Description | | :--- | :--- | | **Power Input** | 12V ~ 24V DC Wide Range Input | | **Operating Temp** | -20°C to 70°C (Industrial Grade) | | **Mounting** | DIN-rail and Wall mount support | | **OS Support** | Linux (Debian / Yocto) and Android | --- ### 5. Specialized Features * **Watchdog Timer:** An electronic timer that triggers a system reset if the software hangs. * **TPM (Optional):** Trusted Platform Module for hardware-based security and encryption. * **Antenna Ports:** Multiple SMA cutouts for external wireless signal reception.