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- ISA Slot CPU Board: Designed for ISA backplane systems, ensuring compatibility with legacy industrial platforms.
- Intel 386 Architecture: Provides stable and proven 32-bit processing performance suitable for embedded control and automation.
- Onboard Memory: 2 MB DRAM integrated on the board for immediate operation without external memory modules.
- Expandable Memory: Two single-sided 72-pin FPM or EDO DRAM sockets supporting up to 64 MB total memory capacity.
- Disk-On-Chip (DOC) Socket: Allows installation of a solid-state storage module for operating system and application data, enhancing reliability and eliminating moving parts.
- Comprehensive I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printer or peripheral connectivity.
- General-purpose 16-bit Digital I/O (DIO) for custom control and monitoring applications.
- Peripheral Support:
- One IDE connector for hard disk or CompactFlash adapter.
- One FDD connector for floppy disk drive support.
- Input Devices: Mini-DIN keyboard and PS/2 mouse connectors for standard input peripherals.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery from software faults.
- Power Efficiency: Operates from a single +5 V DC supply at approximately 1.8 A current draw.
- Compact Industrial Form Factor: 185 mm × 122 mm PCB size, compatible with PC/104 and ISA mechanical standards.
- Legacy Compatibility: Ideal for maintaining or upgrading existing ISA-based industrial systems.
- Intel 386 Architecture: Provides stable and proven 32-bit processing performance suitable for embedded control and automation.
- Onboard Memory: 2 MB DRAM integrated on the board for immediate operation without external memory modules.
- Expandable Memory: Two single-sided 72-pin FPM or EDO DRAM sockets supporting up to 64 MB total memory capacity.
- Disk-On-Chip (DOC) Socket: Allows installation of a solid-state storage module for operating system and application data, enhancing reliability and eliminating moving parts.
- Comprehensive I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printer or peripheral connectivity.
- General-purpose 16-bit Digital I/O (DIO) for custom control and monitoring applications.
- Peripheral Support:
- One IDE connector for hard disk or CompactFlash adapter.
- One FDD connector for floppy disk drive support.
- Input Devices: Mini-DIN keyboard and PS/2 mouse connectors for standard input peripherals.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery from software faults.
- Power Efficiency: Operates from a single +5 V DC supply at approximately 1.8 A current draw.
- Compact Industrial Form Factor: 185 mm × 122 mm PCB size, compatible with PC/104 and ISA mechanical standards.
- Legacy Compatibility: Ideal for maintaining or upgrading existing ISA-based industrial systems.
1. Product Overview
Product Name: NuPro-315/2M
Model: NuPro-315/2M
Series: NuPro Industrial CPU Board Series
Article Number: NuPro-315/2M
Manufacturer: (Not explicitly stated; typically produced by an industrial computing manufacturer specializing in embedded and legacy ISA/PC/104 systems)
The NuPro-315/2M is an industrial-grade single-board computer (SBC) designed for integration into ISA-based embedded systems. It features an Intel 386-class CPU architecture and is engineered for high reliability, long-term operation, and compatibility with legacy industrial control systems. The board integrates 2 MB of onboard DRAM, supports additional memory expansion up to 64 MB, and includes a Disk-On-Chip (DOC) socket for solid-state storage. With a compact 185 mm × 122 mm form factor and PC/104/ISA interface, the NuPro-315/2M is optimized for embedded control, automation, and industrial computing applications requiring stable 386 performance and robust I/O capabilities.
2. Key Features
- ISA Slot CPU Board: Designed for ISA backplane systems, ensuring compatibility with legacy industrial platforms.
- Intel 386 Architecture: Provides stable and proven 32-bit processing performance suitable for embedded control and automation.
- Onboard Memory: 2 MB DRAM integrated on the board for immediate operation without external memory modules.
- Expandable Memory: Two single-sided 72-pin FPM or EDO DRAM sockets supporting up to 64 MB total memory capacity.
- Disk-On-Chip (DOC) Socket: Allows installation of a solid-state storage module for operating system and application data, enhancing reliability and eliminating moving parts.
- Comprehensive I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printer or peripheral connectivity.
- General-purpose 16-bit Digital I/O (DIO) for custom control and monitoring applications.
- Peripheral Support:
- One IDE connector for hard disk or CompactFlash adapter.
- One FDD connector for floppy disk drive support.
- Input Devices: Mini-DIN keyboard and PS/2 mouse connectors for standard input peripherals.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery from software faults.
- Power Efficiency: Operates from a single +5 V DC supply at approximately 1.8 A current draw.
- Compact Industrial Form Factor: 185 mm × 122 mm PCB size, compatible with PC/104 and ISA mechanical standards.
- Legacy Compatibility: Ideal for maintaining or upgrading existing ISA-based industrial systems.
3. Technical Specifications
- Processor: Intel 386-class CPU, 40 MHz clock frequency
- Memory:
- Onboard: 2 MB DRAM
- Expansion: Two 72-pin single-sided FPM or EDO DRAM sockets, up to 64 MB total
- Storage:
- 1 × IDE connector (supports HDD or CompactFlash via adapter)
- 1 × FDD connector (supports standard floppy drives)
- 1 × Disk-On-Chip (DOC) socket for solid-state storage
- I/O Interfaces:
- 2 × RS-232 serial ports (16550 UART compatible)
- 1 × Parallel port
- 1 × 16-bit general-purpose Digital I/O (DIO)
- Peripheral Interfaces:
- Mini-DIN keyboard connector
- PS/2 mouse connector
- Bus Interface: ISA and PC/104 compatible
- Power Requirements: +5 V DC ±5%, 1.8 A typical consumption
- Form Factor: 185 mm × 122 mm (7.28 in × 4.80 in)
- Operating Environment: Industrial-grade design suitable for extended temperature and vibration conditions (exact range not specified)
- Construction: High-quality PCB with industrial-grade components for durability and long-term reliability
4. Functionality
The NuPro-315/2M functions as a self-contained CPU board for ISA-based embedded systems. It integrates processing, memory, storage, and I/O control on a single board, allowing it to serve as the central computing unit in industrial automation, control, and monitoring systems.
Operation:
- The 386 CPU executes embedded operating systems or real-time control software.
- Onboard DRAM provides immediate memory resources, while additional DRAM modules can be installed for more demanding applications.
- The Disk-On-Chip socket enables solid-state storage, eliminating the need for mechanical drives and improving reliability in harsh environments.
- The IDE and FDD connectors allow connection of traditional storage devices for legacy compatibility.
- Serial and parallel ports facilitate communication with sensors, controllers, printers, and other industrial peripherals.
- The 16-bit DIO interface supports custom digital input/output operations for process control, signal monitoring, or device actuation.
- The watchdog timer ensures system stability by automatically resetting the system in case of software malfunction.
Applications:
- Industrial automation and process control
- Legacy equipment maintenance and modernization
- Embedded control systems in manufacturing or transportation
- Data acquisition and monitoring systems
- Test and measurement equipment
- Industrial PCs requiring ISA or PC/104 integration
Compatibility:
- Compatible with ISA backplanes and PC/104 expansion modules
- Supports standard DOS, embedded DOS, or lightweight real-time operating systems
- Interfaces with standard RS-232, parallel, and PS/2 peripherals
5. Components & Accessories
Included Components:
- NuPro-315/2M CPU board with onboard 2 MB DRAM
- Integrated connectors for IDE, FDD, serial, parallel, keyboard, and mouse interfaces
- Watchdog timer circuitry and DIO interface
Optional Accessories:
- Additional 72-pin DRAM modules (FPM or EDO) up to 64 MB
- Disk-On-Chip module for solid-state storage
- IDE hard drive or CompactFlash adapter
- Floppy disk drive (3.5" or 5.25")
- PC/104 expansion modules for additional I/O or communication interfaces
- ISA backplane for system integration
- Power supply providing regulated +5 V DC output
Connectors:
- 1 × 40-pin IDE connector
- 1 × 34-pin FDD connector
- 2 × DB9 or header connectors for RS-232 ports
- 1 × 25-pin parallel port connector
- 1 × 16-bit DIO header
- 1 × Mini-DIN keyboard connector
- 1 × PS/2 mouse connector
- 1 × Power input header (+5 V DC)
6. Installation & Setup
Requirements:
- +5 V DC regulated power supply capable of delivering at least 2 A
- ISA or PC/104 backplane or chassis for mechanical and electrical integration
- Compatible DRAM modules (72-pin FPM or EDO) for memory expansion
- Appropriate storage device (DOC, IDE HDD, or FDD) depending on application
Mounting Options:
- Direct installation into an ISA slot or PC/104 stack
- Secured using standard mounting holes on the 185 × 122 mm PCB
- Can be integrated into rack-mounted or custom industrial enclosures
Configuration:
- Memory expansion via 72-pin DRAM sockets
- Storage configuration through IDE, FDD, or DOC interfaces
- Peripheral setup via BIOS or embedded firmware (depending on system design)
- Watchdog timer and DIO functions configurable through software or jumper settings (details depend on system firmware)
Setup Procedure:
1. Install the board into the ISA or PC/104 slot.
2. Connect the +5 V DC power supply.
3. Attach storage devices (IDE, FDD, or DOC).
4. Connect keyboard, mouse, and serial/parallel peripherals.
5. Power on and configure BIOS or embedded OS settings.
6. Load operating system or application software.
7. Performance & Capabilities
- Processing Speed: 40 MHz CPU clock frequency provides stable performance for control and data acquisition tasks.
- Memory Capacity: Up to 64 MB DRAM ensures sufficient memory for embedded operating systems and industrial applications.
- I/O Throughput: Dual 16550 UARTs support high-speed serial communication with buffering for reliable data transfer.
- Storage Flexibility: Supports both mechanical and solid-state storage options for adaptability to different environments.
- Power Efficiency: Low power consumption (~9 W) suitable for fanless or low-heat enclosures.
- Reliability: Watchdog timer and industrial-grade components ensure continuous operation in mission-critical systems.
- Limitations:
- 386 CPU architecture limits compatibility with modern operating systems.
- ISA interface restricts use to legacy or specialized industrial systems.
- No integrated graphics or USB support (requires external modules if needed).
8. Standards & Compliance
- Bus Standards: ISA and PC/104 compliant
- Serial Interface Standard: RS-232 (EIA/TIA-232)
- Parallel Interface Standard: IEEE 1284 compatible
- Electrical Compliance: Operates within standard +5 V DC industrial power specifications
- Memory Standards: 72-pin FPM/EDO DRAM modules
- Storage Interface Standards: IDE (ATA) and FDD (standard floppy interface)
- Regulatory Compliance: Designed to meet industrial computing standards for EMC and safety (specific certifications not listed)
- Environmental Compliance: Built for industrial environments with extended operational reliability (temperature and vibration tolerance implied)
9. Additional Information
Warranty: Typically provided with a standard manufacturer’s warranty (duration dependent on supplier, often 1–3 years for industrial boards).
Technical Support: Manufacturer or distributor support available for configuration, integration, and troubleshooting.
Maintenance:
- Periodic inspection of connectors and power supply recommended.
- Firmware or BIOS updates may be available for enhanced compatibility.
- Minimal maintenance required due to solid-state design and lack of moving parts.
Software Compatibility:
- Supports DOS, embedded DOS, and other lightweight real-time operating systems suitable for 386 architecture.
- Compatible with legacy industrial control software and custom embedded applications.
Lifecycle & Availability:
- Designed for long-term availability to support industrial system maintenance and legacy equipment upgrades.
- Ideal for OEMs and system integrators maintaining ISA-based infrastructure.
Summary
The NuPro-315/2M is a robust, industrial-grade ISA slot CPU board built around a 40 MHz 386 processor. It integrates 2 MB of onboard DRAM, expandable to 64 MB, and supports both traditional and solid-state storage through IDE, FDD, and DOC interfaces. With dual RS-232 ports, a parallel port, and a 16-bit DIO interface, it provides comprehensive connectivity for industrial control and automation systems. Its compact 185 × 122 mm form factor, single +5 V power requirement, and PC/104 compatibility make it ideal for embedded applications where reliability, legacy support, and low power consumption are critical. The NuPro-315/2M continues to serve as a dependable solution for maintaining and upgrading ISA-based industrial systems, offering proven 386 performance and versatile I/O integration in a durable, long-life design.
Product Name: NuPro-315/2M
Model: NuPro-315/2M
Series: NuPro Industrial CPU Board Series
Article Number: NuPro-315/2M
Manufacturer: (Not explicitly stated; typically produced by an industrial computing manufacturer specializing in embedded and legacy ISA/PC/104 systems)
The NuPro-315/2M is an industrial-grade single-board computer (SBC) designed for integration into ISA-based embedded systems. It features an Intel 386-class CPU architecture and is engineered for high reliability, long-term operation, and compatibility with legacy industrial control systems. The board integrates 2 MB of onboard DRAM, supports additional memory expansion up to 64 MB, and includes a Disk-On-Chip (DOC) socket for solid-state storage. With a compact 185 mm × 122 mm form factor and PC/104/ISA interface, the NuPro-315/2M is optimized for embedded control, automation, and industrial computing applications requiring stable 386 performance and robust I/O capabilities.
2. Key Features
- ISA Slot CPU Board: Designed for ISA backplane systems, ensuring compatibility with legacy industrial platforms.
- Intel 386 Architecture: Provides stable and proven 32-bit processing performance suitable for embedded control and automation.
- Onboard Memory: 2 MB DRAM integrated on the board for immediate operation without external memory modules.
- Expandable Memory: Two single-sided 72-pin FPM or EDO DRAM sockets supporting up to 64 MB total memory capacity.
- Disk-On-Chip (DOC) Socket: Allows installation of a solid-state storage module for operating system and application data, enhancing reliability and eliminating moving parts.
- Comprehensive I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printer or peripheral connectivity.
- General-purpose 16-bit Digital I/O (DIO) for custom control and monitoring applications.
- Peripheral Support:
- One IDE connector for hard disk or CompactFlash adapter.
- One FDD connector for floppy disk drive support.
- Input Devices: Mini-DIN keyboard and PS/2 mouse connectors for standard input peripherals.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery from software faults.
- Power Efficiency: Operates from a single +5 V DC supply at approximately 1.8 A current draw.
- Compact Industrial Form Factor: 185 mm × 122 mm PCB size, compatible with PC/104 and ISA mechanical standards.
- Legacy Compatibility: Ideal for maintaining or upgrading existing ISA-based industrial systems.
3. Technical Specifications
- Processor: Intel 386-class CPU, 40 MHz clock frequency
- Memory:
- Onboard: 2 MB DRAM
- Expansion: Two 72-pin single-sided FPM or EDO DRAM sockets, up to 64 MB total
- Storage:
- 1 × IDE connector (supports HDD or CompactFlash via adapter)
- 1 × FDD connector (supports standard floppy drives)
- 1 × Disk-On-Chip (DOC) socket for solid-state storage
- I/O Interfaces:
- 2 × RS-232 serial ports (16550 UART compatible)
- 1 × Parallel port
- 1 × 16-bit general-purpose Digital I/O (DIO)
- Peripheral Interfaces:
- Mini-DIN keyboard connector
- PS/2 mouse connector
- Bus Interface: ISA and PC/104 compatible
- Power Requirements: +5 V DC ±5%, 1.8 A typical consumption
- Form Factor: 185 mm × 122 mm (7.28 in × 4.80 in)
- Operating Environment: Industrial-grade design suitable for extended temperature and vibration conditions (exact range not specified)
- Construction: High-quality PCB with industrial-grade components for durability and long-term reliability
4. Functionality
The NuPro-315/2M functions as a self-contained CPU board for ISA-based embedded systems. It integrates processing, memory, storage, and I/O control on a single board, allowing it to serve as the central computing unit in industrial automation, control, and monitoring systems.
Operation:
- The 386 CPU executes embedded operating systems or real-time control software.
- Onboard DRAM provides immediate memory resources, while additional DRAM modules can be installed for more demanding applications.
- The Disk-On-Chip socket enables solid-state storage, eliminating the need for mechanical drives and improving reliability in harsh environments.
- The IDE and FDD connectors allow connection of traditional storage devices for legacy compatibility.
- Serial and parallel ports facilitate communication with sensors, controllers, printers, and other industrial peripherals.
- The 16-bit DIO interface supports custom digital input/output operations for process control, signal monitoring, or device actuation.
- The watchdog timer ensures system stability by automatically resetting the system in case of software malfunction.
Applications:
- Industrial automation and process control
- Legacy equipment maintenance and modernization
- Embedded control systems in manufacturing or transportation
- Data acquisition and monitoring systems
- Test and measurement equipment
- Industrial PCs requiring ISA or PC/104 integration
Compatibility:
- Compatible with ISA backplanes and PC/104 expansion modules
- Supports standard DOS, embedded DOS, or lightweight real-time operating systems
- Interfaces with standard RS-232, parallel, and PS/2 peripherals
5. Components & Accessories
Included Components:
- NuPro-315/2M CPU board with onboard 2 MB DRAM
- Integrated connectors for IDE, FDD, serial, parallel, keyboard, and mouse interfaces
- Watchdog timer circuitry and DIO interface
Optional Accessories:
- Additional 72-pin DRAM modules (FPM or EDO) up to 64 MB
- Disk-On-Chip module for solid-state storage
- IDE hard drive or CompactFlash adapter
- Floppy disk drive (3.5" or 5.25")
- PC/104 expansion modules for additional I/O or communication interfaces
- ISA backplane for system integration
- Power supply providing regulated +5 V DC output
Connectors:
- 1 × 40-pin IDE connector
- 1 × 34-pin FDD connector
- 2 × DB9 or header connectors for RS-232 ports
- 1 × 25-pin parallel port connector
- 1 × 16-bit DIO header
- 1 × Mini-DIN keyboard connector
- 1 × PS/2 mouse connector
- 1 × Power input header (+5 V DC)
6. Installation & Setup
Requirements:
- +5 V DC regulated power supply capable of delivering at least 2 A
- ISA or PC/104 backplane or chassis for mechanical and electrical integration
- Compatible DRAM modules (72-pin FPM or EDO) for memory expansion
- Appropriate storage device (DOC, IDE HDD, or FDD) depending on application
Mounting Options:
- Direct installation into an ISA slot or PC/104 stack
- Secured using standard mounting holes on the 185 × 122 mm PCB
- Can be integrated into rack-mounted or custom industrial enclosures
Configuration:
- Memory expansion via 72-pin DRAM sockets
- Storage configuration through IDE, FDD, or DOC interfaces
- Peripheral setup via BIOS or embedded firmware (depending on system design)
- Watchdog timer and DIO functions configurable through software or jumper settings (details depend on system firmware)
Setup Procedure:
1. Install the board into the ISA or PC/104 slot.
2. Connect the +5 V DC power supply.
3. Attach storage devices (IDE, FDD, or DOC).
4. Connect keyboard, mouse, and serial/parallel peripherals.
5. Power on and configure BIOS or embedded OS settings.
6. Load operating system or application software.
7. Performance & Capabilities
- Processing Speed: 40 MHz CPU clock frequency provides stable performance for control and data acquisition tasks.
- Memory Capacity: Up to 64 MB DRAM ensures sufficient memory for embedded operating systems and industrial applications.
- I/O Throughput: Dual 16550 UARTs support high-speed serial communication with buffering for reliable data transfer.
- Storage Flexibility: Supports both mechanical and solid-state storage options for adaptability to different environments.
- Power Efficiency: Low power consumption (~9 W) suitable for fanless or low-heat enclosures.
- Reliability: Watchdog timer and industrial-grade components ensure continuous operation in mission-critical systems.
- Limitations:
- 386 CPU architecture limits compatibility with modern operating systems.
- ISA interface restricts use to legacy or specialized industrial systems.
- No integrated graphics or USB support (requires external modules if needed).
8. Standards & Compliance
- Bus Standards: ISA and PC/104 compliant
- Serial Interface Standard: RS-232 (EIA/TIA-232)
- Parallel Interface Standard: IEEE 1284 compatible
- Electrical Compliance: Operates within standard +5 V DC industrial power specifications
- Memory Standards: 72-pin FPM/EDO DRAM modules
- Storage Interface Standards: IDE (ATA) and FDD (standard floppy interface)
- Regulatory Compliance: Designed to meet industrial computing standards for EMC and safety (specific certifications not listed)
- Environmental Compliance: Built for industrial environments with extended operational reliability (temperature and vibration tolerance implied)
9. Additional Information
Warranty: Typically provided with a standard manufacturer’s warranty (duration dependent on supplier, often 1–3 years for industrial boards).
Technical Support: Manufacturer or distributor support available for configuration, integration, and troubleshooting.
Maintenance:
- Periodic inspection of connectors and power supply recommended.
- Firmware or BIOS updates may be available for enhanced compatibility.
- Minimal maintenance required due to solid-state design and lack of moving parts.
Software Compatibility:
- Supports DOS, embedded DOS, and other lightweight real-time operating systems suitable for 386 architecture.
- Compatible with legacy industrial control software and custom embedded applications.
Lifecycle & Availability:
- Designed for long-term availability to support industrial system maintenance and legacy equipment upgrades.
- Ideal for OEMs and system integrators maintaining ISA-based infrastructure.
Summary
The NuPro-315/2M is a robust, industrial-grade ISA slot CPU board built around a 40 MHz 386 processor. It integrates 2 MB of onboard DRAM, expandable to 64 MB, and supports both traditional and solid-state storage through IDE, FDD, and DOC interfaces. With dual RS-232 ports, a parallel port, and a 16-bit DIO interface, it provides comprehensive connectivity for industrial control and automation systems. Its compact 185 × 122 mm form factor, single +5 V power requirement, and PC/104 compatibility make it ideal for embedded applications where reliability, legacy support, and low power consumption are critical. The NuPro-315/2M continues to serve as a dependable solution for maintaining and upgrading ISA-based industrial systems, offering proven 386 performance and versatile I/O integration in a durable, long-life design.
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