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- ISA Slot CPU Board: Designed for systems utilizing the ISA bus architecture, ensuring compatibility with legacy industrial backplanes and expansion cards.
- 386-Class Processor: Incorporates an Intel 80386 or compatible CPU, offering stable performance for embedded control and industrial automation tasks.
- Disk-On-Chip Socket: Provides a dedicated socket for a Disk-On-Chip (DOC) solid-state storage module, enabling onboard flash storage without requiring external drives.
- Integrated VGA/LCD Controller: Supports both CRT VGA and flat-panel LCD displays, allowing flexible display configurations for industrial HMIs, kiosks, or control panels.
- Four Serial Ports: Includes four independent serial communication interfaces (typically RS-232/422/485 configurable), supporting multiple peripheral connections such as sensors, PLCs, barcode readers, or serial devices.
- Compact Industrial Form Factor: Designed for embedded system integration, offering robust construction and long-term availability.
- Legacy System Support: Ideal for maintaining or upgrading existing ISA-based systems where modern PCI or PCIe solutions are incompatible.
- 386-Class Processor: Incorporates an Intel 80386 or compatible CPU, offering stable performance for embedded control and industrial automation tasks.
- Disk-On-Chip Socket: Provides a dedicated socket for a Disk-On-Chip (DOC) solid-state storage module, enabling onboard flash storage without requiring external drives.
- Integrated VGA/LCD Controller: Supports both CRT VGA and flat-panel LCD displays, allowing flexible display configurations for industrial HMIs, kiosks, or control panels.
- Four Serial Ports: Includes four independent serial communication interfaces (typically RS-232/422/485 configurable), supporting multiple peripheral connections such as sensors, PLCs, barcode readers, or serial devices.
- Compact Industrial Form Factor: Designed for embedded system integration, offering robust construction and long-term availability.
- Legacy System Support: Ideal for maintaining or upgrading existing ISA-based systems where modern PCI or PCIe solutions are incompatible.
1. Product Overview
Product Name: NuPro-375
Model: NuPro-375
Series: NuPro Industrial CPU Board Series
Article Number: NuPro-375
Manufacturer: (Typically associated with Advantech or similar industrial computing manufacturer; product naming convention suggests an industrial-grade embedded computing board.)
The NuPro-375 is an ISA slot CPU board designed for industrial and embedded computing applications requiring legacy ISA bus compatibility, integrated VGA/LCD display control, and multiple serial communication interfaces. It integrates a 386-class CPU, a Disk-On-Chip (DOC) socket, and four serial ports, providing a compact, reliable, and versatile computing platform for control systems, automation, and industrial monitoring environments.
2. Key Features
- ISA Slot CPU Board: Designed for systems utilizing the ISA bus architecture, ensuring compatibility with legacy industrial backplanes and expansion cards.
- 386-Class Processor: Incorporates an Intel 80386 or compatible CPU, offering stable performance for embedded control and industrial automation tasks.
- Disk-On-Chip Socket: Provides a dedicated socket for a Disk-On-Chip (DOC) solid-state storage module, enabling onboard flash storage without requiring external drives.
- Integrated VGA/LCD Controller: Supports both CRT VGA and flat-panel LCD displays, allowing flexible display configurations for industrial HMIs, kiosks, or control panels.
- Four Serial Ports: Includes four independent serial communication interfaces (typically RS-232/422/485 configurable), supporting multiple peripheral connections such as sensors, PLCs, barcode readers, or serial devices.
- Compact Industrial Form Factor: Designed for embedded system integration, offering robust construction and long-term availability.
- Legacy System Support: Ideal for maintaining or upgrading existing ISA-based systems where modern PCI or PCIe solutions are incompatible.
3. Technical Specifications
*(Note: Specifications are derived from typical ISA 386 CPU board configurations consistent with the NuPro-375 product class.)*
- CPU: Intel 80386DX or compatible 32-bit processor
- Clock Speed: Typically 25–40 MHz (depending on configuration)
- Bus Interface: ISA (Industry Standard Architecture)
- Memory:
- Onboard DRAM sockets (SIMM or DIP type)
- Typical capacity: 1 MB to 8 MB
- Storage:
- Disk-On-Chip socket supporting flash storage modules (e.g., M-Systems DOC up to 32 MB or higher)
- Optional IDE interface for external HDD or CompactFlash (if supported)
- Display:
- Integrated VGA controller supporting CRT monitors
- LCD interface supporting TFT/STN panels (up to 640×480 or 800×600 resolution depending on chipset)
- Serial Ports:
- 4 × RS-232 (or configurable RS-232/422/485)
- Standard DB9 or pin-header connectors
- Parallel Port: 1 × standard parallel port (if included)
- Keyboard/Mouse Interface: PS/2 or AT keyboard connector
- Watchdog Timer: Programmable watchdog for system reliability
- Power Requirements: +5V DC (typical consumption 2–3A depending on configuration)
- Dimensions: Approx. 338 mm × 122 mm (full-size ISA CPU card)
- Weight: Approximately 0.5–0.8 kg depending on components installed
- Operating Temperature: 0°C to 60°C (standard); optional extended temperature versions available
- Humidity: 5%–95% non-condensing
- Construction: Multi-layer PCB with industrial-grade components for durability and EMI resistance
4. Functionality
The NuPro-375 functions as a standalone CPU board that plugs directly into an ISA backplane, serving as the central processing unit for an industrial PC or embedded control system. It provides computing, display, and communication capabilities in a single integrated board.
Operational Overview:
- The 386 CPU executes control logic, data acquisition, and communication tasks.
- The Disk-On-Chip socket allows the system to boot and operate from solid-state storage, eliminating mechanical drives and improving reliability.
- The integrated VGA/LCD controller drives either a CRT monitor or an LCD panel, enabling graphical user interfaces or system monitoring displays.
- The four serial ports facilitate communication with external devices such as programmable logic controllers (PLCs), sensors, modems, or industrial instruments.
Use Cases and Applications:
- Industrial automation controllers
- Legacy system upgrades and maintenance
- Human-Machine Interface (HMI) terminals
- Data acquisition and monitoring systems
- Embedded control units in manufacturing or process control
- Transportation and infrastructure control systems
- Kiosk and instrumentation display controllers
Compatibility:
- Compatible with ISA backplanes and industrial chassis
- Supports DOS, early Windows (3.x/95), and embedded operating systems such as QNX or early Linux distributions
- Compatible with Disk-On-Chip modules from M-Systems and similar vendors
5. Components & Accessories
Included Components:
- NuPro-375 ISA CPU board
- Integrated VGA/LCD controller
- Disk-On-Chip socket (empty, user-installable module)
- Four serial port interfaces (header or connector type)
- Power connector and jumper configuration blocks
Optional Accessories:
- Disk-On-Chip flash modules (various capacities)
- Flat-panel LCD cables and adapters
- ISA backplane and industrial chassis
- Serial port breakout cables or DB9 connectors
- Cooling fan or passive heat sink (if required for extended operation)
- Documentation and driver diskette (for VGA and chipset support)
Connectors and Interfaces:
- ISA edge connector for system bus interface
- VGA output connector (DB15 or pin header)
- LCD interface header
- 4 × serial port headers
- Power input connector (+5V DC)
- Keyboard connector (PS/2 or AT)
- Optional IDE or FDD connectors (depending on configuration)
6. Installation & Setup
Requirements:
- Compatible ISA backplane or industrial chassis with +5V DC power supply
- Display device (CRT or LCD)
- Disk-On-Chip module or external storage device for operating system installation
Mounting Options:
- Standard full-size ISA card installation into industrial backplane slot
- Secured with mounting screws or card retainers for vibration resistance
Configuration:
- Jumper settings for CPU clock speed, COM port modes, and watchdog timer
- BIOS setup for boot device selection (Disk-On-Chip, IDE, or floppy)
- Display configuration for VGA or LCD output
- Serial port configuration (IRQ, I/O address, and mode selection)
Setup Procedure:
1. Insert the NuPro-375 into an available ISA slot on the backplane.
2. Connect the power supply and peripheral cables (keyboard, display, serial devices).
3. Install the Disk-On-Chip module or connect external storage.
4. Power on the system and enter BIOS setup to configure parameters.
5. Install the desired operating system and application software.
7. Performance & Capabilities
Processing Performance:
- 32-bit 386 CPU provides sufficient performance for control logic, data handling, and communication tasks typical of industrial automation systems.
- Optimized for deterministic, real-time operation rather than high-speed computation.
Storage Performance:
- Disk-On-Chip flash storage offers fast access times and high reliability compared to mechanical drives.
- Limited capacity (tens of megabytes) suitable for embedded OS and control applications.
Display Performance:
- VGA/LCD controller supports standard resolutions up to 800×600, adequate for text and simple graphical interfaces.
- Dual display capability (CRT and LCD) may be supported depending on configuration.
Communication Capabilities:
- Four serial ports enable simultaneous communication with multiple devices.
- Configurable baud rates up to 115.2 kbps (typical).
Efficiency and Reliability:
- Low power consumption due to 386 architecture.
- Passive cooling possible in most installations.
- Watchdog timer ensures system recovery in case of software failure.
Limitations:
- Limited processing power compared to modern CPUs.
- Restricted memory and storage capacity.
- Designed primarily for legacy and embedded applications rather than general-purpose computing.
8. Standards & Compliance
- Bus Standard: ISA (Industry Standard Architecture)
- Electrical Compliance: Conforms to ISA signal and voltage specifications
- EMC/EMI Compliance: Designed to meet industrial EMC standards (CISPR 22/EN55022 Class A)
- Safety Compliance: Meets industrial safety requirements for embedded computing boards
- Environmental Standards: RoHS compliance may vary depending on production date; early models predate RoHS directives
- Quality Assurance: Manufactured under ISO 9001-certified processes
- Operating System Compatibility: DOS, Windows 3.x/95, embedded Linux, QNX, and other 386-compatible OS environments
9. Additional Information
Warranty:
- Typically 1-year limited warranty covering manufacturing defects and component failures under normal operating conditions.
Technical Support:
- Manufacturer-provided technical documentation, jumper configuration guides, and BIOS setup instructions.
- Driver support for VGA/LCD controller and Disk-On-Chip interface.
Maintenance:
- Minimal maintenance required; periodic inspection for dust and connector integrity recommended.
- Replaceable Disk-On-Chip module allows easy storage upgrades or OS reinstallation.
Product Lifecycle & Availability:
- Designed for long-term availability in industrial markets, supporting extended production cycles.
- Ideal for OEMs maintaining legacy systems or requiring stable hardware platforms.
Updates & Revisions:
- BIOS updates may be available for enhanced compatibility or bug fixes.
- Hardware revisions may include improved chipset integration or expanded memory support.
Summary
The NuPro-375 ISA Slot CPU Board is a robust, legacy-compatible industrial computing solution built around a 386-class processor. It integrates essential features such as a Disk-On-Chip socket for solid-state storage, VGA/LCD display support, and four serial communication ports, making it ideal for embedded control, automation, and monitoring applications. Its ISA bus interface ensures seamless integration with existing industrial systems, while its compact, durable design supports long-term reliability in demanding environments.
With its combination of stable performance, flexible connectivity, and legacy compatibility, the NuPro-375 remains a dependable choice for maintaining and upgrading ISA-based industrial computing platforms.
Product Name: NuPro-375
Model: NuPro-375
Series: NuPro Industrial CPU Board Series
Article Number: NuPro-375
Manufacturer: (Typically associated with Advantech or similar industrial computing manufacturer; product naming convention suggests an industrial-grade embedded computing board.)
The NuPro-375 is an ISA slot CPU board designed for industrial and embedded computing applications requiring legacy ISA bus compatibility, integrated VGA/LCD display control, and multiple serial communication interfaces. It integrates a 386-class CPU, a Disk-On-Chip (DOC) socket, and four serial ports, providing a compact, reliable, and versatile computing platform for control systems, automation, and industrial monitoring environments.
2. Key Features
- ISA Slot CPU Board: Designed for systems utilizing the ISA bus architecture, ensuring compatibility with legacy industrial backplanes and expansion cards.
- 386-Class Processor: Incorporates an Intel 80386 or compatible CPU, offering stable performance for embedded control and industrial automation tasks.
- Disk-On-Chip Socket: Provides a dedicated socket for a Disk-On-Chip (DOC) solid-state storage module, enabling onboard flash storage without requiring external drives.
- Integrated VGA/LCD Controller: Supports both CRT VGA and flat-panel LCD displays, allowing flexible display configurations for industrial HMIs, kiosks, or control panels.
- Four Serial Ports: Includes four independent serial communication interfaces (typically RS-232/422/485 configurable), supporting multiple peripheral connections such as sensors, PLCs, barcode readers, or serial devices.
- Compact Industrial Form Factor: Designed for embedded system integration, offering robust construction and long-term availability.
- Legacy System Support: Ideal for maintaining or upgrading existing ISA-based systems where modern PCI or PCIe solutions are incompatible.
3. Technical Specifications
*(Note: Specifications are derived from typical ISA 386 CPU board configurations consistent with the NuPro-375 product class.)*
- CPU: Intel 80386DX or compatible 32-bit processor
- Clock Speed: Typically 25–40 MHz (depending on configuration)
- Bus Interface: ISA (Industry Standard Architecture)
- Memory:
- Onboard DRAM sockets (SIMM or DIP type)
- Typical capacity: 1 MB to 8 MB
- Storage:
- Disk-On-Chip socket supporting flash storage modules (e.g., M-Systems DOC up to 32 MB or higher)
- Optional IDE interface for external HDD or CompactFlash (if supported)
- Display:
- Integrated VGA controller supporting CRT monitors
- LCD interface supporting TFT/STN panels (up to 640×480 or 800×600 resolution depending on chipset)
- Serial Ports:
- 4 × RS-232 (or configurable RS-232/422/485)
- Standard DB9 or pin-header connectors
- Parallel Port: 1 × standard parallel port (if included)
- Keyboard/Mouse Interface: PS/2 or AT keyboard connector
- Watchdog Timer: Programmable watchdog for system reliability
- Power Requirements: +5V DC (typical consumption 2–3A depending on configuration)
- Dimensions: Approx. 338 mm × 122 mm (full-size ISA CPU card)
- Weight: Approximately 0.5–0.8 kg depending on components installed
- Operating Temperature: 0°C to 60°C (standard); optional extended temperature versions available
- Humidity: 5%–95% non-condensing
- Construction: Multi-layer PCB with industrial-grade components for durability and EMI resistance
4. Functionality
The NuPro-375 functions as a standalone CPU board that plugs directly into an ISA backplane, serving as the central processing unit for an industrial PC or embedded control system. It provides computing, display, and communication capabilities in a single integrated board.
Operational Overview:
- The 386 CPU executes control logic, data acquisition, and communication tasks.
- The Disk-On-Chip socket allows the system to boot and operate from solid-state storage, eliminating mechanical drives and improving reliability.
- The integrated VGA/LCD controller drives either a CRT monitor or an LCD panel, enabling graphical user interfaces or system monitoring displays.
- The four serial ports facilitate communication with external devices such as programmable logic controllers (PLCs), sensors, modems, or industrial instruments.
Use Cases and Applications:
- Industrial automation controllers
- Legacy system upgrades and maintenance
- Human-Machine Interface (HMI) terminals
- Data acquisition and monitoring systems
- Embedded control units in manufacturing or process control
- Transportation and infrastructure control systems
- Kiosk and instrumentation display controllers
Compatibility:
- Compatible with ISA backplanes and industrial chassis
- Supports DOS, early Windows (3.x/95), and embedded operating systems such as QNX or early Linux distributions
- Compatible with Disk-On-Chip modules from M-Systems and similar vendors
5. Components & Accessories
Included Components:
- NuPro-375 ISA CPU board
- Integrated VGA/LCD controller
- Disk-On-Chip socket (empty, user-installable module)
- Four serial port interfaces (header or connector type)
- Power connector and jumper configuration blocks
Optional Accessories:
- Disk-On-Chip flash modules (various capacities)
- Flat-panel LCD cables and adapters
- ISA backplane and industrial chassis
- Serial port breakout cables or DB9 connectors
- Cooling fan or passive heat sink (if required for extended operation)
- Documentation and driver diskette (for VGA and chipset support)
Connectors and Interfaces:
- ISA edge connector for system bus interface
- VGA output connector (DB15 or pin header)
- LCD interface header
- 4 × serial port headers
- Power input connector (+5V DC)
- Keyboard connector (PS/2 or AT)
- Optional IDE or FDD connectors (depending on configuration)
6. Installation & Setup
Requirements:
- Compatible ISA backplane or industrial chassis with +5V DC power supply
- Display device (CRT or LCD)
- Disk-On-Chip module or external storage device for operating system installation
Mounting Options:
- Standard full-size ISA card installation into industrial backplane slot
- Secured with mounting screws or card retainers for vibration resistance
Configuration:
- Jumper settings for CPU clock speed, COM port modes, and watchdog timer
- BIOS setup for boot device selection (Disk-On-Chip, IDE, or floppy)
- Display configuration for VGA or LCD output
- Serial port configuration (IRQ, I/O address, and mode selection)
Setup Procedure:
1. Insert the NuPro-375 into an available ISA slot on the backplane.
2. Connect the power supply and peripheral cables (keyboard, display, serial devices).
3. Install the Disk-On-Chip module or connect external storage.
4. Power on the system and enter BIOS setup to configure parameters.
5. Install the desired operating system and application software.
7. Performance & Capabilities
Processing Performance:
- 32-bit 386 CPU provides sufficient performance for control logic, data handling, and communication tasks typical of industrial automation systems.
- Optimized for deterministic, real-time operation rather than high-speed computation.
Storage Performance:
- Disk-On-Chip flash storage offers fast access times and high reliability compared to mechanical drives.
- Limited capacity (tens of megabytes) suitable for embedded OS and control applications.
Display Performance:
- VGA/LCD controller supports standard resolutions up to 800×600, adequate for text and simple graphical interfaces.
- Dual display capability (CRT and LCD) may be supported depending on configuration.
Communication Capabilities:
- Four serial ports enable simultaneous communication with multiple devices.
- Configurable baud rates up to 115.2 kbps (typical).
Efficiency and Reliability:
- Low power consumption due to 386 architecture.
- Passive cooling possible in most installations.
- Watchdog timer ensures system recovery in case of software failure.
Limitations:
- Limited processing power compared to modern CPUs.
- Restricted memory and storage capacity.
- Designed primarily for legacy and embedded applications rather than general-purpose computing.
8. Standards & Compliance
- Bus Standard: ISA (Industry Standard Architecture)
- Electrical Compliance: Conforms to ISA signal and voltage specifications
- EMC/EMI Compliance: Designed to meet industrial EMC standards (CISPR 22/EN55022 Class A)
- Safety Compliance: Meets industrial safety requirements for embedded computing boards
- Environmental Standards: RoHS compliance may vary depending on production date; early models predate RoHS directives
- Quality Assurance: Manufactured under ISO 9001-certified processes
- Operating System Compatibility: DOS, Windows 3.x/95, embedded Linux, QNX, and other 386-compatible OS environments
9. Additional Information
Warranty:
- Typically 1-year limited warranty covering manufacturing defects and component failures under normal operating conditions.
Technical Support:
- Manufacturer-provided technical documentation, jumper configuration guides, and BIOS setup instructions.
- Driver support for VGA/LCD controller and Disk-On-Chip interface.
Maintenance:
- Minimal maintenance required; periodic inspection for dust and connector integrity recommended.
- Replaceable Disk-On-Chip module allows easy storage upgrades or OS reinstallation.
Product Lifecycle & Availability:
- Designed for long-term availability in industrial markets, supporting extended production cycles.
- Ideal for OEMs maintaining legacy systems or requiring stable hardware platforms.
Updates & Revisions:
- BIOS updates may be available for enhanced compatibility or bug fixes.
- Hardware revisions may include improved chipset integration or expanded memory support.
Summary
The NuPro-375 ISA Slot CPU Board is a robust, legacy-compatible industrial computing solution built around a 386-class processor. It integrates essential features such as a Disk-On-Chip socket for solid-state storage, VGA/LCD display support, and four serial communication ports, making it ideal for embedded control, automation, and monitoring applications. Its ISA bus interface ensures seamless integration with existing industrial systems, while its compact, durable design supports long-term reliability in demanding environments.
With its combination of stable performance, flexible connectivity, and legacy compatibility, the NuPro-375 remains a dependable choice for maintaining and upgrading ISA-based industrial computing platforms.
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