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- ISA Slot CPU Board: Designed for systems utilizing the ISA bus, ensuring compatibility with legacy industrial backplanes and expansion cards.
- Intel 386 Processor (40 MHz): Provides reliable 32-bit processing performance for embedded control and industrial computing tasks.
- Memory Support: Two single-sided 72-pin DRAM sockets supporting either FPM (Fast Page Mode) or EDO (Extended Data Out) memory modules, with a total capacity of up to 64 MB.
- Storage Interfaces:
- One IDE connector for hard disk or solid-state storage devices.
- One FDD (Floppy Disk Drive) connector for legacy storage support.
- Disk-On-Chip (DOC) socket for solid-state flash storage integration, enabling diskless operation.
- I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printers or general-purpose data transfer.
- 16-bit general-purpose Digital Input/Output (DIO) interface for industrial control and signal processing.
- Peripheral Interfaces:
- Mini-DIN keyboard connector for standard PC keyboards.
- PS/2 mouse port for pointing device connectivity.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery in case of software failure.
- Power Requirements: Operates from a single +5V DC supply, consuming approximately 1.8A.
- Form Factor: Compact 185 mm x 122 mm board size, compatible with ISA and PC/104 mechanical standards.
- Industrial Reliability: Designed for continuous operation in embedded environments, with robust electrical and mechanical design.
- Intel 386 Processor (40 MHz): Provides reliable 32-bit processing performance for embedded control and industrial computing tasks.
- Memory Support: Two single-sided 72-pin DRAM sockets supporting either FPM (Fast Page Mode) or EDO (Extended Data Out) memory modules, with a total capacity of up to 64 MB.
- Storage Interfaces:
- One IDE connector for hard disk or solid-state storage devices.
- One FDD (Floppy Disk Drive) connector for legacy storage support.
- Disk-On-Chip (DOC) socket for solid-state flash storage integration, enabling diskless operation.
- I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printers or general-purpose data transfer.
- 16-bit general-purpose Digital Input/Output (DIO) interface for industrial control and signal processing.
- Peripheral Interfaces:
- Mini-DIN keyboard connector for standard PC keyboards.
- PS/2 mouse port for pointing device connectivity.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery in case of software failure.
- Power Requirements: Operates from a single +5V DC supply, consuming approximately 1.8A.
- Form Factor: Compact 185 mm x 122 mm board size, compatible with ISA and PC/104 mechanical standards.
- Industrial Reliability: Designed for continuous operation in embedded environments, with robust electrical and mechanical design.
1. Product Overview
Product Name: NuPro-315
Model: NuPro-315
Series: NuPro Industrial CPU Board Series
Article Number: NuPro-315
Manufacturer: (Not explicitly stated; typically produced by an industrial computing manufacturer specializing in embedded and legacy ISA/PC/104 systems)
The NuPro-315 is an industrial-grade CPU board designed for ISA slot integration, featuring an Intel 386-class processor operating at 40 MHz. It is engineered for embedded and industrial control applications that require stable, long-term operation, legacy interface support, and flexible I/O capabilities. The board integrates a Disk-On-Chip (DOC) socket, 16-bit digital I/O, and multiple communication ports, making it suitable for automation, instrumentation, and control systems that rely on ISA bus architecture.
2. Key Features
- ISA Slot CPU Board: Designed for systems utilizing the ISA bus, ensuring compatibility with legacy industrial backplanes and expansion cards.
- Intel 386 Processor (40 MHz): Provides reliable 32-bit processing performance for embedded control and industrial computing tasks.
- Memory Support: Two single-sided 72-pin DRAM sockets supporting either FPM (Fast Page Mode) or EDO (Extended Data Out) memory modules, with a total capacity of up to 64 MB.
- Storage Interfaces:
- One IDE connector for hard disk or solid-state storage devices.
- One FDD (Floppy Disk Drive) connector for legacy storage support.
- Disk-On-Chip (DOC) socket for solid-state flash storage integration, enabling diskless operation.
- I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printers or general-purpose data transfer.
- 16-bit general-purpose Digital Input/Output (DIO) interface for industrial control and signal processing.
- Peripheral Interfaces:
- Mini-DIN keyboard connector for standard PC keyboards.
- PS/2 mouse port for pointing device connectivity.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery in case of software failure.
- Power Requirements: Operates from a single +5V DC supply, consuming approximately 1.8A.
- Form Factor: Compact 185 mm x 122 mm board size, compatible with ISA and PC/104 mechanical standards.
- Industrial Reliability: Designed for continuous operation in embedded environments, with robust electrical and mechanical design.
3. Technical Specifications
- Processor: Intel 386-compatible CPU, 40 MHz clock frequency.
- Memory:
- Two 72-pin DRAM sockets (single-sided).
- Supports FPM or EDO DRAM modules.
- Maximum capacity: 64 MB total.
- Storage Interfaces:
- 1 × IDE connector (supports standard ATA devices).
- 1 × FDD connector (supports 3.5" or 5.25" floppy drives).
- 1 × Disk-On-Chip (DOC) socket for flash-based storage.
- Serial Communication:
- 2 × RS-232 ports (16550 UART compatible).
- Configurable baud rates and interrupt settings.
- Parallel Port:
- 1 × Standard parallel port (SPP/EPP/ECP modes depending on BIOS support).
- Digital I/O:
- 16-bit general-purpose DIO interface.
- Configurable as input or output lines for industrial control.
- Peripheral Interfaces:
- 1 × Mini-DIN keyboard connector.
- 1 × PS/2 mouse connector.
- Watchdog Timer:
- Programmable timeout interval.
- System reset or interrupt trigger on timeout.
- Power Supply:
- +5V DC input.
- Typical current consumption: ~1.8A.
- Bus Interface:
- ISA bus edge connector.
- PC/104-compatible stacking interface for modular expansion.
- Physical Dimensions:
- 185 mm (L) × 122 mm (W).
- Weight: Approx. 250–300 g (estimated, depending on configuration).
- Operating Environment:
- Temperature range: typically 0°C to 60°C (industrial-grade variants may support extended ranges).
- Humidity: 5%–90% non-condensing.
- Construction:
- Multi-layer PCB with industrial-grade components.
- Conformal coating optional for harsh environments.
4. Functionality
The NuPro-315 functions as a self-contained CPU board for ISA-based embedded systems. It integrates processing, memory, storage, and I/O interfaces on a single compact board. The 386 CPU provides sufficient performance for control logic, data acquisition, and communication tasks in industrial automation or instrumentation systems.
Typical Use Cases:
- Industrial control systems and PLC replacements.
- Data acquisition and monitoring equipment.
- Legacy system upgrades requiring ISA bus compatibility.
- Embedded controllers in manufacturing, transportation, or energy systems.
- Test and measurement instruments with serial and parallel interfaces.
Operation:
The board connects to an ISA backplane or PC/104 stack, drawing power and interfacing with peripheral cards through the bus. The onboard memory and storage interfaces allow for flexible system configurations, including diskless operation via the Disk-On-Chip socket. The watchdog timer ensures system reliability by automatically resetting the CPU in case of software hang-ups.
Compatibility:
- Compatible with standard ISA bus systems and PC/104 modules.
- Supports DOS, early Windows, and embedded operating systems compatible with 386 architecture.
- Interfaces with standard serial, parallel, and PS/2 peripherals.
5. Components & Accessories
Included Components:
- NuPro-315 CPU board (main unit).
- Integrated connectors for IDE, FDD, RS-232, parallel, DIO, keyboard, and mouse.
- Watchdog timer circuitry.
Optional Accessories:
- DRAM modules (FPM or EDO, up to 64 MB).
- Disk-On-Chip flash memory module.
- IDE or FDD cables.
- PC/104 expansion modules for additional I/O or communication interfaces.
- Mounting hardware for chassis or backplane installation.
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 header.
- 1 × 16-bit DIO header.
- 1 × Mini-DIN keyboard connector.
- 1 × PS/2 mouse connector.
- 1 × Power input (+5V).
- ISA edge connector and PC/104 stacking connector.
6. Installation & Setup
Requirements:
- +5V DC regulated power supply capable of delivering at least 2A.
- Compatible ISA backplane or PC/104 stack.
- Appropriate DRAM modules (72-pin FPM or EDO).
- Storage device (IDE HDD, FDD, or Disk-On-Chip).
Mounting Options:
- Direct insertion into an ISA slot on a passive backplane.
- Stacking with PC/104 modules using the onboard connector.
- Secured with standoffs or mounting brackets within an industrial chassis.
Configuration:
- Memory installation via 72-pin sockets.
- BIOS configuration for storage and I/O settings.
- Watchdog timer setup through software or jumper configuration.
- Serial and parallel port settings adjustable via BIOS or jumpers.
Setup Procedure:
1. Install DRAM modules into the 72-pin sockets.
2. Connect storage devices to IDE or FDD connectors.
3. Insert the board into the ISA slot or attach to PC/104 stack.
4. Connect keyboard, mouse, and serial/parallel peripherals as needed.
5. Apply +5V power and configure BIOS settings.
6. Install operating system or embedded software.
7. Performance & Capabilities
- Processing Speed: 40 MHz 386-class CPU provides stable performance for embedded control and data processing.
- Memory Capacity: Up to 64 MB DRAM ensures sufficient memory for multitasking and data buffering.
- Storage Flexibility: Supports both traditional and solid-state storage, enabling diskless operation.
- I/O Throughput: Dual 16550 UARTs allow high-speed serial communication up to 115.2 kbps.
- Digital I/O: 16-bit DIO interface supports direct control of sensors, relays, and actuators.
- Power Efficiency: Operates on a single +5V supply with low current draw (~1.8A), suitable for compact embedded systems.
- Reliability: Watchdog timer enhances system uptime by preventing software lockups.
- Limitations:
- Legacy 386 architecture limits compatibility with modern operating systems.
- ISA bus bandwidth constraints compared to PCI or PCIe.
- Limited graphics or multimedia capabilities (CPU board is designed for control, not display).
8. Standards & Compliance
- Bus Standards:
- Compliant with ISA bus electrical and mechanical specifications.
- PC/104-compatible interface for modular expansion.
- Electrical Standards:
- Operates within standard +5V DC logic levels.
- Designed for industrial EMC compliance (specific certifications depend on manufacturer).
- Environmental Compliance:
- RoHS compliance (depending on production date and manufacturer).
- Designed for industrial temperature and humidity ranges.
- Regulatory Compliance:
- Meets general CE and FCC Class A requirements for industrial computing equipment (typical for this class of product).
9. Additional Information
- Warranty: Typically 1–2 years limited warranty (varies by distributor or OEM).
- Technical Support: Manufacturer or distributor provides documentation, BIOS updates, and technical assistance.
- Maintenance:
- Periodic inspection of connectors and power supply recommended.
- Firmware and BIOS updates available for enhanced compatibility.
- Replaceable DRAM and DOC modules for easy maintenance.
- Longevity: Designed for long-term availability and support in industrial applications, ensuring continuity for legacy systems.
- Documentation:
- User manual with jumper settings, connector pinouts, and BIOS configuration details.
- Schematics and mechanical drawings available for system integration.
- Software Support:
- Compatible with DOS, Windows 3.x/95, and embedded real-time operating systems (RTOS) supporting 386 architecture.
- BIOS supports standard boot devices (IDE, FDD, DOC).
Summary
The NuPro-315 ISA Slot CPU Board is a robust, industrial-grade computing solution built around a 40 MHz 386 processor. It combines legacy ISA and PC/104 compatibility with flexible memory, storage, and I/O options. With support for up to 64 MB DRAM, dual serial ports, a parallel port, 16-bit digital I/O, and a Disk-On-Chip socket, it provides a versatile platform for embedded control, automation, and data acquisition applications. Its single +5V power requirement, compact 185 × 122 mm form factor, and integrated watchdog timer make it ideal for reliable, long-term deployment in industrial environments where stability and legacy support are essential.
Product Name: NuPro-315
Model: NuPro-315
Series: NuPro Industrial CPU Board Series
Article Number: NuPro-315
Manufacturer: (Not explicitly stated; typically produced by an industrial computing manufacturer specializing in embedded and legacy ISA/PC/104 systems)
The NuPro-315 is an industrial-grade CPU board designed for ISA slot integration, featuring an Intel 386-class processor operating at 40 MHz. It is engineered for embedded and industrial control applications that require stable, long-term operation, legacy interface support, and flexible I/O capabilities. The board integrates a Disk-On-Chip (DOC) socket, 16-bit digital I/O, and multiple communication ports, making it suitable for automation, instrumentation, and control systems that rely on ISA bus architecture.
2. Key Features
- ISA Slot CPU Board: Designed for systems utilizing the ISA bus, ensuring compatibility with legacy industrial backplanes and expansion cards.
- Intel 386 Processor (40 MHz): Provides reliable 32-bit processing performance for embedded control and industrial computing tasks.
- Memory Support: Two single-sided 72-pin DRAM sockets supporting either FPM (Fast Page Mode) or EDO (Extended Data Out) memory modules, with a total capacity of up to 64 MB.
- Storage Interfaces:
- One IDE connector for hard disk or solid-state storage devices.
- One FDD (Floppy Disk Drive) connector for legacy storage support.
- Disk-On-Chip (DOC) socket for solid-state flash storage integration, enabling diskless operation.
- I/O Interfaces:
- Two RS-232 serial ports (16550 UART compatible) for communication with serial devices.
- One parallel port for printers or general-purpose data transfer.
- 16-bit general-purpose Digital Input/Output (DIO) interface for industrial control and signal processing.
- Peripheral Interfaces:
- Mini-DIN keyboard connector for standard PC keyboards.
- PS/2 mouse port for pointing device connectivity.
- Watchdog Timer: Hardware watchdog for system reliability and automatic recovery in case of software failure.
- Power Requirements: Operates from a single +5V DC supply, consuming approximately 1.8A.
- Form Factor: Compact 185 mm x 122 mm board size, compatible with ISA and PC/104 mechanical standards.
- Industrial Reliability: Designed for continuous operation in embedded environments, with robust electrical and mechanical design.
3. Technical Specifications
- Processor: Intel 386-compatible CPU, 40 MHz clock frequency.
- Memory:
- Two 72-pin DRAM sockets (single-sided).
- Supports FPM or EDO DRAM modules.
- Maximum capacity: 64 MB total.
- Storage Interfaces:
- 1 × IDE connector (supports standard ATA devices).
- 1 × FDD connector (supports 3.5" or 5.25" floppy drives).
- 1 × Disk-On-Chip (DOC) socket for flash-based storage.
- Serial Communication:
- 2 × RS-232 ports (16550 UART compatible).
- Configurable baud rates and interrupt settings.
- Parallel Port:
- 1 × Standard parallel port (SPP/EPP/ECP modes depending on BIOS support).
- Digital I/O:
- 16-bit general-purpose DIO interface.
- Configurable as input or output lines for industrial control.
- Peripheral Interfaces:
- 1 × Mini-DIN keyboard connector.
- 1 × PS/2 mouse connector.
- Watchdog Timer:
- Programmable timeout interval.
- System reset or interrupt trigger on timeout.
- Power Supply:
- +5V DC input.
- Typical current consumption: ~1.8A.
- Bus Interface:
- ISA bus edge connector.
- PC/104-compatible stacking interface for modular expansion.
- Physical Dimensions:
- 185 mm (L) × 122 mm (W).
- Weight: Approx. 250–300 g (estimated, depending on configuration).
- Operating Environment:
- Temperature range: typically 0°C to 60°C (industrial-grade variants may support extended ranges).
- Humidity: 5%–90% non-condensing.
- Construction:
- Multi-layer PCB with industrial-grade components.
- Conformal coating optional for harsh environments.
4. Functionality
The NuPro-315 functions as a self-contained CPU board for ISA-based embedded systems. It integrates processing, memory, storage, and I/O interfaces on a single compact board. The 386 CPU provides sufficient performance for control logic, data acquisition, and communication tasks in industrial automation or instrumentation systems.
Typical Use Cases:
- Industrial control systems and PLC replacements.
- Data acquisition and monitoring equipment.
- Legacy system upgrades requiring ISA bus compatibility.
- Embedded controllers in manufacturing, transportation, or energy systems.
- Test and measurement instruments with serial and parallel interfaces.
Operation:
The board connects to an ISA backplane or PC/104 stack, drawing power and interfacing with peripheral cards through the bus. The onboard memory and storage interfaces allow for flexible system configurations, including diskless operation via the Disk-On-Chip socket. The watchdog timer ensures system reliability by automatically resetting the CPU in case of software hang-ups.
Compatibility:
- Compatible with standard ISA bus systems and PC/104 modules.
- Supports DOS, early Windows, and embedded operating systems compatible with 386 architecture.
- Interfaces with standard serial, parallel, and PS/2 peripherals.
5. Components & Accessories
Included Components:
- NuPro-315 CPU board (main unit).
- Integrated connectors for IDE, FDD, RS-232, parallel, DIO, keyboard, and mouse.
- Watchdog timer circuitry.
Optional Accessories:
- DRAM modules (FPM or EDO, up to 64 MB).
- Disk-On-Chip flash memory module.
- IDE or FDD cables.
- PC/104 expansion modules for additional I/O or communication interfaces.
- Mounting hardware for chassis or backplane installation.
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 header.
- 1 × 16-bit DIO header.
- 1 × Mini-DIN keyboard connector.
- 1 × PS/2 mouse connector.
- 1 × Power input (+5V).
- ISA edge connector and PC/104 stacking connector.
6. Installation & Setup
Requirements:
- +5V DC regulated power supply capable of delivering at least 2A.
- Compatible ISA backplane or PC/104 stack.
- Appropriate DRAM modules (72-pin FPM or EDO).
- Storage device (IDE HDD, FDD, or Disk-On-Chip).
Mounting Options:
- Direct insertion into an ISA slot on a passive backplane.
- Stacking with PC/104 modules using the onboard connector.
- Secured with standoffs or mounting brackets within an industrial chassis.
Configuration:
- Memory installation via 72-pin sockets.
- BIOS configuration for storage and I/O settings.
- Watchdog timer setup through software or jumper configuration.
- Serial and parallel port settings adjustable via BIOS or jumpers.
Setup Procedure:
1. Install DRAM modules into the 72-pin sockets.
2. Connect storage devices to IDE or FDD connectors.
3. Insert the board into the ISA slot or attach to PC/104 stack.
4. Connect keyboard, mouse, and serial/parallel peripherals as needed.
5. Apply +5V power and configure BIOS settings.
6. Install operating system or embedded software.
7. Performance & Capabilities
- Processing Speed: 40 MHz 386-class CPU provides stable performance for embedded control and data processing.
- Memory Capacity: Up to 64 MB DRAM ensures sufficient memory for multitasking and data buffering.
- Storage Flexibility: Supports both traditional and solid-state storage, enabling diskless operation.
- I/O Throughput: Dual 16550 UARTs allow high-speed serial communication up to 115.2 kbps.
- Digital I/O: 16-bit DIO interface supports direct control of sensors, relays, and actuators.
- Power Efficiency: Operates on a single +5V supply with low current draw (~1.8A), suitable for compact embedded systems.
- Reliability: Watchdog timer enhances system uptime by preventing software lockups.
- Limitations:
- Legacy 386 architecture limits compatibility with modern operating systems.
- ISA bus bandwidth constraints compared to PCI or PCIe.
- Limited graphics or multimedia capabilities (CPU board is designed for control, not display).
8. Standards & Compliance
- Bus Standards:
- Compliant with ISA bus electrical and mechanical specifications.
- PC/104-compatible interface for modular expansion.
- Electrical Standards:
- Operates within standard +5V DC logic levels.
- Designed for industrial EMC compliance (specific certifications depend on manufacturer).
- Environmental Compliance:
- RoHS compliance (depending on production date and manufacturer).
- Designed for industrial temperature and humidity ranges.
- Regulatory Compliance:
- Meets general CE and FCC Class A requirements for industrial computing equipment (typical for this class of product).
9. Additional Information
- Warranty: Typically 1–2 years limited warranty (varies by distributor or OEM).
- Technical Support: Manufacturer or distributor provides documentation, BIOS updates, and technical assistance.
- Maintenance:
- Periodic inspection of connectors and power supply recommended.
- Firmware and BIOS updates available for enhanced compatibility.
- Replaceable DRAM and DOC modules for easy maintenance.
- Longevity: Designed for long-term availability and support in industrial applications, ensuring continuity for legacy systems.
- Documentation:
- User manual with jumper settings, connector pinouts, and BIOS configuration details.
- Schematics and mechanical drawings available for system integration.
- Software Support:
- Compatible with DOS, Windows 3.x/95, and embedded real-time operating systems (RTOS) supporting 386 architecture.
- BIOS supports standard boot devices (IDE, FDD, DOC).
Summary
The NuPro-315 ISA Slot CPU Board is a robust, industrial-grade computing solution built around a 40 MHz 386 processor. It combines legacy ISA and PC/104 compatibility with flexible memory, storage, and I/O options. With support for up to 64 MB DRAM, dual serial ports, a parallel port, 16-bit digital I/O, and a Disk-On-Chip socket, it provides a versatile platform for embedded control, automation, and data acquisition applications. Its single +5V power requirement, compact 185 × 122 mm form factor, and integrated watchdog timer make it ideal for reliable, long-term deployment in industrial environments where stability and legacy support are essential.
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