The CTN-1262D is a 12-inch industrial panel PC powered by the Intel® Celeron® J1900 processor. It provides stable performance with multiple I/O interfaces, and supports Modbus and BACnet protocols, making it well-suited for building automation, monitoring, and control applications.
Introduction
- Intel® Core™ i7/i5/i3 processors, compatible from Celeron® to 12th Gen Intel® Core™
- 12inch TFT LCD,10-point capacitive touch/ resistive touch
- IP65 front, 6H hardness.
- Fanless
- Dual Intel® I210 Gigabit Ethernet.
- 4x Dry Contact Inputs, 2x Dry Contact Outputs, 6x Isolated RS-485 Ports
- I/O: USB 2.0 ×1,
- 9–36V DC wide-range power input.
- Expansion: dual M.2 2280 NVMe, M.2 2230 Wi-Fi.
- TPM 2.0 hardware security support.
- CESIPC BlockCore modular design.
- CESIPC SafeCore™ power-loss protection.
- Auto power-on after power recovery.
- Industrial-grade 6061 aluminum alloy enclosure.
★ Specification Download
► Specifications
System Core
| CPU | Intel® Celeron® Processor J1900 2.0~2.42GHz |
| Memory | 4~8GB DDR3L |
| Storage | SSD |
| Cooling | Fan-less |
| OS | Windows 10/11/ Linux Ubuntu |
I/O Ports
| USB2.0 | 1×USB2.0 |
| Phoenix Connector | RS485/ RS232/GPIO |
| Audio | 1×Audio |
| Loudspeaker | 2x Loudspeakers |
| Expansion | 1×Mini PCIe Socket |
| Ethernet | 2×10M/100M/1000M Intel I210 LAN |
LCD Display
| Panel Size | 12inch |
| Max. Resolution | 1024×768 4:3 |
| Luminance(cd/㎡) | 350cd/㎡ |
| Contrast | 450:1 |
| Backlight | More than 50000H |
Panel Screen
| Touch Panel | Multi-touch Projected Capacitive Touch Screen |
| Transmittance | 85% |
| Controller | USB |
Wireless Communication
| WirelessNetworkin | 4G Full Network Compatibility （Optional） |
| Wi-Fi | Wi-Fi/ Bruteeth |
Power Supply
| DC Input | 1×3-pin Pluggable Terminal Block for 12V DC, 9-36V optional |
| Booting | AT / ATX |
Mechanical
| Dimension | 313.9 (W)×199.8(D)×87(H)mm |
| Cutout Dimensions | 264.9×184.0mm |
| Weight | 2.1KG |
| Material | High-Strength Aluminum Alloy |
| Mounting | Wall-mount/VESA Mount |
Environmental
| Operating Temperature | 0~50℃ (-40~70℃Optional) |
| Storage Temperature | -10~60℃ |
| Protection | Front Panel IP65 |
Certifications & Services
| Certs | CE / FCC / BIS, according to EN 55032 & EN 55035 |
| ODM | BIOS / Boot on LOGO / OEM |
►Dimensions
CTN‑1262D Series — BACnet/Modbus Panel PC FAQ
12‑inch industrial panel PC with 6 isolated RS‑485 ports — purpose‑built for building automation, HVAC, and industrial control with native BACnet/Modbus support and BlockCore™ modularity.
What makes the CTN‑1262D different from standard industrial panel PCs?+
The CTN‑1262D is a 12‑inch industrial panel PC with native BACnet and Modbus protocol support, purpose‑built for building automation, HVAC, and industrial monitoring applications. Standard industrial panel PCs lack the specialised communication interfaces required for building management systems, requiring external protocol gateways that add cost and complexity.
Key differentiators include:
• 6×isolated RS‑485 ports — Industry‑leading serial density for connecting BACnet MS/TP, Modbus RTU, and other fieldbus devices. The isolated design protects against ground loops and voltage differences common in multi‑point building automation networks.
• Native BACnet and Modbus protocol support — Direct integration with building management systems (BMS) without external protocol converters. The CTN‑1262D can act as a BACnet building controller, Modbus gateway, or supervisory node.
• 4×Dry Contact Inputs + 2×Dry Contact Outputs — Digital I/O for direct connection to alarm sensors, door contacts, status switches, and relay actuators. No separate I/O modules required.
• Built‑in 2×loudspeakers — Audio output for voice announcements, alarm notifications, or guided instructions in building automation and public address applications.
• Fanless passive cooling — Thermally engineered 6061 aluminum alloy chassis eliminates dust intake and fan‑related failures, ideal for 24/7 building automation environments.
• BlockCore™ modular architecture — Built on CESIPC’s BlockCore™ platform, supporting i‑Door expansion modules (CAN, 5‑port LAN, isolated serial, 5G) without custom PCB development.
• SafeCore™ power‑loss protection — Prevents OS/file corruption during sudden power loss with one‑reboot recovery, critical for critical infrastructure and remote building sites.
Standard commercial panel PCs lack these specialised communication interfaces — particularly the 6 isolated RS‑485 ports and native BACnet/Modbus support — and would require multiple external gateways, increasing installation cost, cabinet space, and failure points.
What is the advantage of 6 isolated RS‑485 ports for building automation?+
The 6×isolated RS‑485 ports provide significant advantages for building automation and industrial monitoring deployments:
• Connect multiple BACnet MS/TP networks simultaneously — Each RS‑485 port can support up to 127 BACnet MS/TP devices. With 6 ports, the CTN‑1262D can monitor and control hundreds of VAV boxes, AHUs, chillers, lighting controllers, and room sensors across multiple building zones without additional gateways.
• Direct Modbus RTU device connection — Connect PLCs, energy meters, power monitors, and industrial sensors directly via Modbus RTU, with up to 247 devices per port depending on network configuration.
• Isolated design for network reliability — The isolation protects each RS‑485 network from ground loops and voltage differences that commonly occur in large buildings with multiple electrical panels and long cable runs. A fault on one RS‑485 network will not affect other networks connected to the same panel PC.
• Protocol‑specific network segregation — Dedicated ports can be assigned to BACnet, Modbus, or other RS‑485 protocols, eliminating the need for hardware switches or gateway reconfiguration when adding new devices.
• Simplified cabling and reduced cost — Each RS‑485 port uses standard twisted‑pair cabling, and the 12‑inch 4:3 display fits into standard building automation panels. Multiple networks are terminated directly at the panel PC, eliminating external RS‑485 hubs or converters.
What are dry contact inputs and outputs — and how are they used in building automation?+
The CTN‑1262D includes 4×Dry Contact Inputs and 2×Dry Contact Outputs — digital I/O that interfaces directly with building automation sensors and actuators without external I/O modules.
Dry Contact Inputs (4 channels):
• Alarm monitoring — Fire alarms, security system contacts, door status sensors, and emergency stop buttons.
• Equipment status — Pump run status, filter clog detection, valve position feedback, and equipment fault contacts.
• Occupancy sensing — Motion detectors and occupancy sensors for lighting and HVAC control.
Dry Contact Outputs (2 channels):
• Equipment control — Relay outputs for starting/stopping fans, pumps, compressors, and lighting circuits.
• Alarm notification — Trigger external beacons, horns, or notification devices when alarm conditions are detected.
• Valve and damper control — Actuate motorised valves, dampers, and louvers for HVAC system control.
The dry contact I/O eliminates the need for separate PLCs or I/O modules in many building automation applications, reducing cabinet space and system cost. The I/O is integrated directly into the panel PC, simplifying wiring and configuration.
What processors and performance options are available?+
The CTN‑1262D is powered by the Intel® Celeron® J1900 processor — a proven, low‑power quad‑core platform ideal for building automation applications where reliability and energy efficiency are paramount.
Processor: Intel® Celeron® J1900 — 4 cores, 2.0–2.42GHz, 10W TDP.
Memory: 4–8GB DDR3L — sufficient for building automation HMI, data logging, and gateway applications.
Storage: SSD — fast boot and reliable operation in 24/7 environments.
Cooling: Fanless — no moving parts, zero scheduled maintenance.
Operating systems: Windows 10/11, Linux Ubuntu — broad software compatibility for building automation platforms.
The J1900 platform provides the ideal balance of performance and power efficiency for building automation gateways, BACnet/Modbus routing, and HMI display applications. For higher performance requirements (machine vision, edge AI), CESIPC offers additional options in the CTN series with 10th and 12th Gen Core processors.
For detailed specifications, download the datasheet.
What I/O ports and expansion capabilities does the CTN‑1262D offer?+
The CTN‑1262D provides a specialised industrial I/O package optimised for building automation and monitoring:
Serial communication (Phoenix connector): 6×isolated RS‑485 ports — BACnet MS/TP, Modbus RTU, and other RS‑485 fieldbus protocols. Optional RS‑232/GPIO configuration available.
Digital I/O (Phoenix connector): 4×Dry Contact Inputs + 2×Dry Contact Outputs — direct connection to sensors, switches, alarms, and relays without external I/O modules.
USB ports: 1×USB 2.0 — connects calibration tools, diagnostic equipment, and external storage.
Networking: 2× Intel® I210 Gigabit Ethernet (10/100/1000M) — dual network interfaces for separating BACnet/IP traffic from IT network traffic, or for network redundancy in critical building applications.
Display outputs: Native 12‑inch 4:3 TFT LCD (1024×768) — no external display output required. The integrated display provides a compact HMI for building operators.
Audio: 1×Audio + 2×built‑in loudspeakers — voice announcements, alarm notifications, and guided instructions for building occupants.
Internal expansion: Dual M.2 2280 NVMe slots for high‑speed storage, M.2 2230 slot for Wi‑Fi + Bluetooth, 1×Mini PCIe socket for wireless modules (4G/5G).
Wireless (optional): 4G Full Network Compatibility + Wi‑Fi/Bluetooth — remote monitoring and connectivity for distributed building sites.
Modular I/O via BlockCore™: The BlockCore™ platform supports additional expansion modules (i‑Door) for CAN, 5‑port LAN, isolated serial, and 5G without custom PCB development.
What is BlockCore™ modular architecture, and how does it benefit building automation deployments?+
BlockCore™ is CESIPC’s modular computing architecture that standardises interface, structure, power, and expansion across all products. For the CTN‑1262D, BlockCore™ delivers:
1. Standardised I/O expansion (i‑Door) — i‑Door expansion slots accept function modules (CAN, 5‑port LAN, isolated serial, 5G, GPIO) without custom PCB development. For building automation projects requiring CAN bus for elevator integration or 5G for remote site connectivity, simply add the module — no hardware redesign.
2. LEGO MODE design philosophy — Based on modular construction principles, BlockCore™ creates an ecosystem where compute, I/O, and function boards can be configured like building blocks. This reduces custom development cost by up to 80% through standardised module libraries.
3. Shared ecosystem across product families — The CTN‑1262D uses the same expansion modules as other BlockCore™ industrial PCs. Standardise spares across mixed fleets of building automation controllers, panel PCs, and embedded gateways.
4. Future‑proof upgrades — While the CTN‑1262D uses the J1900 platform, the BlockCore™ architecture allows future processor upgrades within the CTN series without changing the I/O layout, 6 RS‑485 ports, or mounting dimensions.
5. Extendable product lifecycle — BlockCore™ effectively extends product lifecycle, making investment in the CTN‑1262D more cost‑efficient over the long term, particularly for large‑scale building automation rollouts spanning multiple years.
What protection does SafeCore™ provide for building automation applications?+
SafeCore™ is CESIPC’s system‑level power‑loss protection architecture built into the CTN‑1262D. In building automation and critical infrastructure environments, power interruptions are common — grid fluctuations, generator switching, or maintenance lockout/tagout — events that can corrupt OS files and building logs if power is removed abruptly. SafeCore™ provides:
• System‑level write protection — Blocks all unauthorised changes to the system; even after power failure, user error, or malware attack, system files automatically restore after reboot.
• One‑reboot recovery mechanism — System crash or file corruption? Just reboot — the system returns to a healthy working state. No technical skills needed. Facility managers can restore service in minutes without waiting for IT support.
• Zero IT support required — Anyone on site (building engineer, security guard) can recover the system with a simple restart, reducing downtime and on‑call IT costs.
• Safe disk writes — Prevents fragmentation or file corruption during sudden power loss, ensuring data integrity for building automation logs, energy consumption records, and alarm histories.
Combined with auto power‑on recovery (the system automatically restarts when power returns) and 9–36V DC wide‑range input (tolerates voltage fluctuations from building power systems), SafeCore™ ensures continuous operation of critical building management functions. SafeCore™ is standard across all CTN‑1262D models and works in tandem with TPM 2.0 hardware security for encrypted authentication and data protection.
What are the mechanical specifications, mounting options, and environmental ratings?+
Dimensions: 313.9(W) × 199.8(D) × 87(H) mm — compact 12‑inch form factor fits into standard building automation panels and equipment rooms.
Cutout dimensions: 264.9 × 184.0 mm — standard industrial panel cutout for easy retrofit compatibility.
Weight: 2.1 kg — lightweight for wall or VESA mounting.
Mounting: Wall mount / VESA mount — flexible installation on walls, equipment racks, or flush integration into control panels.
Enclosure: Industrial‑grade 6061 high‑strength aluminum alloy chassis — corrosion‑resistant and durable for 24/7 building automation operation.
Display: 12‑inch 4:3 TFT LCD, 1024×768 resolution, 350 cd/m² brightness, 450:1 contrast ratio, 50,000 hours LED backlight life. Touch: 10‑point projected capacitive (standard) or optional resistive touch for gloved operation.
Cooling: Fanless passive cooling — no moving parts, zero scheduled maintenance. Silent operation suits noise‑sensitive building environments.
Protection: Front panel IP65‑rated for dust and splash resistance — suitable for building lobbies, equipment rooms, and industrial environments.
Operating temperature: 0°C ~ 50°C standard; optional -40°C ~ 70°C extended grade for outdoor enclosures, unheated equipment rooms, and extreme environments.
Storage temperature: -10°C ~ 60°C.
Humidity: 10% ~ 90% RH, non‑condensing.
Power input: 9~36V DC wide‑range input — directly accepts 24V building automation power rails without additional DC‑DC conversion. Boot modes: AT (auto power‑on) for unattended operation, or ATX (power button) for manual control.
Certifications: CE, FCC, BIS compliant (EN 55032 & EN 55035), factory ISO9001:2015 certified. MTBF 60,000 hours.
What are typical applications for the CTN‑1262D?+
The CTN‑1262D is a 12‑inch industrial panel PC designed for applications requiring native BACnet/Modbus support, 6 isolated RS‑485 ports, and integrated dry contact I/O in a compact, rugged footprint. Typical applications include:
• Building Automation & HVAC Control — Deployed as a BACnet building controller or supervisory node in commercial buildings, hospitals, schools, and data centres. The 6 RS‑485 ports connect VAV boxes, AHUs, chillers, boilers, lighting controllers, and room sensors across multiple building zones. The 4:3 12‑inch display provides a compact HMI for building engineers to view system status and adjust setpoints. The dry contact inputs monitor alarm contacts, filter status, and equipment run signals.
• Energy Management & Sub‑metering — Deployed as a Modbus gateway for energy meters, power monitors, and sub‑meters in commercial and industrial facilities. The 6 RS‑485 ports connect multiple meter networks, aggregating consumption data for energy dashboards and utility billing. The dual Ethernet ports provide separated networks for meter data collection and building network uplink.
• Industrial Monitoring & SCADA — Deployed as a Modbus RTU gateway or HMI at industrial sites. The 6 RS‑485 ports connect PLCs, motor drives, flow meters, pressure sensors, and temperature transmitters. The 12‑inch 4:3 display and IP65 front panel make it suitable for factory floor installation. The dry contact outputs can trigger alarms or equipment shutdown on fault conditions.
• Smart Building & IoT Gateways — Deployed as an edge gateway for smart building IoT applications. The 6 RS‑485 ports aggregate data from lighting controls, occupancy sensors, indoor air quality monitors, and access control systems. Optional 4G/Wi‑Fi connectivity provides cloud uplink for remote monitoring and analytics. The built‑in loudspeakers support voice announcements for building occupants.
• Data Centre Infrastructure Management (DCIM) — Deployed in data centres for monitoring cooling units, UPS systems, generators, and environmental sensors. The 6 RS‑485 ports connect to multiple Modbus/BACnet devices across the data centre floor. The 12‑inch display provides a local interface for facility engineers.
For detailed application examples, see our building automation PC application guide and BACnet/Modbus gateway panel PC overview.
Can CESIPC provide OEM/ODM customisation for the CTN‑1262D?+
Yes. CESIPC offers full OEM/ODM services for the CTN‑1262D panel PC series, built around the BlockCore™ modular architecture:
• BIOS configuration and boot logo branding — For private labeling, brand consistency, and OEM turnkey solutions.
• I/O panel customisation — Alternative connector arrangements, additional COM ports, isolated digital I/O, or CAN bus via i‑Door expansion modules.
• Protocol pre‑configuration — Factory configuration of BACnet MS/TP device instances, Modbus RTU addressing, and communication parameters for specific building automation projects.
• Function board customisation — Custom i‑Function Board development for specific industrial protocols or proprietary interfaces. The LEGO MODE ecosystem enables rapid function board development, dramatically reducing customisation lead times.
• Operating system pre‑load — Windows 10/11 LTSC or Ubuntu Linux with custom drivers, pre‑configured BACnet/Modbus stacks, and pre‑installed building automation runtime environments.
• Enclosure material options — Enhanced corrosion resistance for marine, chemical, or outdoor roadside environments.
• Private label packaging and custom SKU part numbering for integrators and reseller programs.
With in‑house SMT assembly, sheet metal fabrication, and CNC machining, CESIPC delivers custom industrial panel PCs with consistent quality and predictable lead times. MOQ: 1 unit sample available. Typical lead time: 2–4 weeks. Minimum order quantities vary by customisation scope. Contact our engineering team for a detailed ODM assessment.
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