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Validated Mini-ITX platforms engineered for reliable deployment in industrial, edge, and embedded system environments.
Multiple Serial Port Mini-ITX Platforms
Industrial Mini-ITX Motherboard with 6 COM Ports and RS-485
A compact industrial platform for connecting PLCs, meters, sensors, HMIs, service terminals, and legacy serial equipment without relying on external USB adapters.
- 6 COM ChannelsDedicated multi-device connectivity
- RS-485 SupportChannel allocation confirmed by board release
- Mini-ITX Footprint170 × 170 mm system integration
- Controlled I/O BuildPinout, protection, BIOS and cables locked
Confirm the electrical standard, connector, pinout, isolation, termination, cable length, baud rate, and COM-port numbering for every channel.
Serial Configuration
6-COM Mini-ITX Specifications and Channel Planning
Six physical COM channels are the starting point. Electrical mode, connector, protection, termination, and software enumeration must be confirmed for the released board.
Map every connected device
List the PLC, meter, sensor, HMI, modem, scanner, or legacy controller assigned to each COM port.
Define the RS-485 electrical plan
Confirm two-wire or four-wire operation, termination, bias, isolation, cable length, grounding, shielding, and baud rate.
Freeze the production I/O build
Lock the board revision, pinout, cable assembly, BIOS, driver package, COM numbering, and approved substitutions.
Platform and Serial-I/O Status
Form Factor
Mini-ITX, 170 × 170 mmStandard
Serial Port Count
6 COM channelsProduct feature
RS-485 Support
RS-485-capable configuration; exact channel allocation by released modelBy configuration
Electrical Modes
Confirm the RS-232 / RS-422 / RS-485 mode required for each channelConfirm mapping
Connector Format
Rear DB9, internal header, locking connector, or project breakoutBy board
Isolation & Protection
Isolation, ESD, surge and common-reference design confirmed per channelValidate
Termination & Bias
Onboard or external implementation selected for the final bus topologySystem design
Processor & Memory
Selected for workload, lifecycle, OS and thermal targetBy configuration
LAN, Display & Storage
Networking, display, USB, storage and expansion defined by selected boardBy configuration
Software Release
BIOS, driver, OS image and COM-port enumeration validated togetherRelease control
Send the Six-Port Serial Map Before Selecting the Board
Provide the device assigned to each channel, electrical standard, connector, isolation, termination, cable length, baud rate, OS, enclosure, and quantity.
Serial Integration
Six Serial Channels for PLCs, Meters, Sensors, and Legacy Equipment
Assign each port by device and electrical standard instead of treating all six connectors as interchangeable.
COM1–2PLC, HMI, or service interfaces
COM3–4Meter chains, scanners, or machine controllers
COM5–6Sensor buses, legacy devices, or reserved expansion
- Keep the port-to-device map consistent across BIOS, operating system, labels, and wiring drawings.
- Use termination only at the correct bus endpoints and keep multidrop stubs short.
- Define shield, common reference, and isolation strategy for electrically noisy installations.
- Validate concurrent traffic, recovery after cable faults, and watchdog behavior on all active channels.
Deployment Fit
Industrial Systems That Benefit from Six Native COM Ports
The board is strongest where several serial devices must stay directly connected, consistently enumerated, and serviceable inside one compact controller.
Multi-PLC and Machine Gateway
Coordinate PLCs, drives, meters, HMIs, and service tools without external serial hubs.
Explore industrial automationLegacy Equipment Integration
Keep established serial machines connected while adding modern networking, storage, and remote management.
Review industrial control systemsMetering and Sensor Concentrator
Collect data from multiple RS-485 device groups while keeping service and maintenance channels available.
See energy and utility applicationsChoose a different architecture when
the system requires synchronized motion control, certified safety buses, deterministic high-speed fieldbus timing, or more isolated networks than the selected board can provide.
Project Configuration
Serial Port Mapping, Protection, and Production Control
Customize only the items that change how the six channels connect, survive field conditions, and remain stable across production batches.
Define RS-232, RS-422, or RS-485 requirements and any software or jumper selection method.
Select rear DB9, internal IDC, locking connectors, breakout cables, panel labels, and service access.
Specify isolation, ESD, surge protection, termination, bias, common reference, and shield treatment.
Lock COM numbering, driver versions, watchdog behavior, startup state, and the validated operating-system image.
Platform GuideMultiple Serial Port Options
Compare port quantity, mode, connector, protection, and deployment choices.
Review serial platform options → ValidationEngineering ValidationPlan boot, port enumeration, traffic, fault recovery, and production acceptance tests.
Review the validation process → Platform LibraryReference PlatformsReview integration examples for industrial and embedded system planning.
View reference platforms → Technical LibraryEngineering WhitepapersBrowse practical guidance for embedded interfaces, power, thermal, and lifecycle decisions.
Browse engineering whitepapers →Configuration Questions
6-COM and RS-485 Selection FAQ
Confirm the channel details that determine whether the released board matches the real serial network.
Are all six COM ports automatically configured as RS-485?
No. The product supports six COM channels and RS-485, but the exact RS-232, RS-422, or RS-485 allocation must be confirmed for the selected board and release.
Can RS-485 termination and bias be enabled on the motherboard?
It depends on the released configuration. Confirm whether termination and bias are onboard, jumper-selectable, software-controlled, or provided externally in the field wiring.
Can isolated and non-isolated serial channels be mixed on one board?
Only when the selected design supports that mix. Define which channels need isolation, their common-reference strategy, and the expected surge and ground-potential conditions.
Will COM-port numbering stay the same after an OS or BIOS update?
Stable numbering requires a controlled board revision, BIOS, driver package, and OS image. Revalidate enumeration before releasing any software or firmware change.
What information is needed to confirm the six-port configuration?
Provide the device and signal standard for each channel, connector and pinout, isolation, termination, cable length, baud rate, OS, enclosure, quantity, and production schedule.