Introduction: The role of Mini ITX in industrial embedded computing and the positioning of IMB-T10
With the deepening of Industry 4.0 and the Internet of Things, edge devices need to handle an increasing number of fieldbus, sensor data, and human-computer interaction tasks. Although traditional ATX or larger industrial control motherboards have strong scalability, they are limited by chassis space and power consumption; Smaller PICO-ITX often sacrifice I/O density. Mini ITX (170mm × 170mm) has achieved a good balance between size and functionality, becoming the preferred board type for industrial tablets, medical monitors, self-service terminals, and other devices.
Linghua IMB-T10 is an embedded motherboard designed for multi serial communication and flexible display requirements. Its core advantages lie in:
10 serial ports (9 x RS-232+1 x RS-232/422/485) to meet the serial communication needs of multiple devices.
Three independent display outputs (VGA, HDMI, single/dual channel LVDS), supporting dual screen display, suitable for human-machine interface and monitoring combination.
Multiple expansion slots (PCI, PCIe x1, Mini PCIe full card) that can accommodate fieldbus cards, acquisition cards, or wireless modules.
The low-power Atom D2550 platform does not require active cooling (TDP is only 10W) and is suitable for enclosed fanless environments.
This article will provide engineers with a complete selection and integration technology reference starting from hardware design details.
Processor and Core Computing Platform
2.1 CPU and chipset
CPU:Intel Atom D2550, Dual core four thread, with a clock speed of 1.86 GHz and equipped with 1MB L2 cache. This processor is based on 32nm technology, with a thermal design power (TDP) of only 10W, and supports Intel 64 bit technology and VT-x virtualization.
Chipset: Intel NM10 Express, providing DMI bus connection to CPU and managing peripheral interfaces such as storage, USB, PCI, etc.
2.2 Memory
The motherboard provides one 204 pin SO-DIMM slot, supports DDR3 800/1066 MHz memory, and has a maximum capacity of 4GB. For most embedded applications such as protocol conversion, data acquisition, and HMI display, 4GB is sufficient to meet the running requirements of Windows 7 32-bit or lightweight Linux systems.
2.3 BIOS and Hardware Monitoring
BIOS:AMI 16Mb SPI Flash, Supports programmable watchdog timers of 1-255 seconds/minute, which can trigger system reset and enhance unmanned reliability.
Hardware monitoring: Real time monitoring of CPU/system temperature and onboard DC voltage for system health management.
Display output and multi screen solution
IMB-T10 integrates Intel GMA 3650 display core (based on PowerVR SGX545) and provides three physical display interfaces:
Interface Description Maximum Resolution
VGA standard DB-15 analog output 1920 × 1200 @ 60Hz
HDMI 1.3a digital audio and video integrated interface 1920 × 1200 @ 60Hz
LVDS onboard 24 bit single/dual channel (selected through jumper) single channel: 1440 × 900; Dual channel: 1920 × 1080
Dual screen independent display supports any combination of the following:
VGA + LVDS
VGA + HDMI
LVDS + HDMI
This feature is highly valuable for industrial control equipment that requires an operation screen+monitoring screen or control interface+data display. For example, in CNC machine tools, LVDS can be used to connect the front panel touch screen, and VGA can be connected to the external large screen monitoring to achieve efficient human-computer interaction.
LVDS configuration precautions: Select single channel or dual channel mode through onboard jumper or BIOS settings, and ensure that panel parameters (pixel clock, polarity, etc.) match the motherboard. Linghua provides corresponding LVDS cable options.
Serial communication interface: powerful configuration of 10 COM channels
The core highlight of IMB-T10 is its 10 serial ports, which are distributed as follows:
9-way RS-232: One of them is led out through Rear I/O (DB9), and the remaining 8 are led out through onboard 2.54mm pin headers (requiring COM cables).
1-channel RS-232/422/485 configurable: Work mode can be selected through jumper or BIOS, supporting long-distance or multi-point bus communication.
Engineering application value:
In intelligent transportation, multiple serial devices such as GPS modules, radar sensors, and signal light controllers can be connected simultaneously.
In medical equipment, drive multiple serial infusion pumps, monitors, barcode scanners, etc.
In industrial robots, connect teaching devices, encoders, IO expansion modules, etc.
Electrical characteristics: The RS-232 level meets the standard, and RS-422/485 supports multi-point connection (requires external terminal resistors). Onboard anti-static protection design enhances on-site reliability.
Storage and expansion slots
5.1 Storage Interface
Two SATA II ports (3.0 Gb/s), one of which shares a signal with the onboard mSATA II (i.e. one of the two). Users can choose 2.5-inch SSD/HDD or directly solder mSATA solid-state drives according to their needs to save space.