1. Product Overview
Product Name: CI7BMN
Model / Article Number: CI7BMN
Series: 886 Full-Size Slot CPU Board
Manufacturer: (Not explicitly stated; typically produced by an industrial computing manufacturer specializing in embedded and slot CPU boards)
Product Type: Full-size Slot CPU Board with integrated VGA and LAN
Description: The CI7BMN is a full-size industrial slot CPU board designed for embedded and industrial computing applications. It supports Intel Socket 370 processors, including Pentium III and Celeron CPUs, and integrates VGA graphics and LAN connectivity. Built around the Intel 82440BX chipset, the CI7BMN provides a stable, high-performance platform for legacy and industrial systems requiring long-term reliability, multiple I/O interfaces, and compatibility with PICMG, PC/104, and ISA bus architectures.

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2. Key Features
- Processor Support: Compatible with Intel Pentium III and Celeron processors using the Socket 370 (FCPGA) interface, supporting clock speeds from 300 MHz up to 800 MHz.
- Chipset: Utilizes the Intel 82440BX chipset, known for its stability, performance, and compatibility with a wide range of industrial applications.
- Memory Capacity: Supports 32 MB to 768 MB of SDRAM through three DIMM slots, allowing flexible memory configurations for various performance requirements.
- Integrated Graphics: Onboard VGA controller provides direct video output, eliminating the need for a separate graphics card and simplifying system integration.
- Integrated Networking: Built-in LAN interface for Ethernet connectivity, enabling network communication and remote management.
- Cache Memory: Equipped with 512 KB of SRAM cache to enhance CPU performance and data throughput.
- Storage Interfaces: Supports IDE hard disk drives (HDD) and floppy disk drives (FDD), ensuring compatibility with legacy storage devices.
- Serial and Parallel Ports: Includes two serial ports (16550 UART compatible) and one parallel port supporting SPP, EPP, and ECP modes for peripheral connectivity.
- Peripheral Interfaces: Provides PS/2 ports for mouse and keyboard connections.
- Watchdog Timer: Integrated watchdog timer with a configurable timeout range of 0–30 seconds for system reliability and automatic recovery in case of software failure.
- Bus Compatibility: Fully compliant with PICMG, PC/104, and ISA bus standards, ensuring broad compatibility with industrial backplanes and expansion modules.
- Form Factor: Full-size slot CPU board measuring 338 mm x 122 mm, designed for industrial chassis and backplane systems.

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3. Technical Specifications
- Processor Socket: Socket 370 (FCPGA)
- Supported CPUs: Intel Pentium III, Intel Celeron
- CPU Frequency Range: 300 MHz – 800 MHz
- Chipset: Intel 82440BX
- Cache Memory: 512 KB SRAM (L2 cache)
- System Memory:
- Type: SDRAM
- Capacity: 32 MB – 768 MB
- Slots: 3 × DIMM sockets
- Graphics: Integrated VGA controller
- Networking: Integrated LAN interface (Ethernet)
- Storage Interfaces:
- IDE interface for HDD
- FDD interface for floppy drives
- Serial Ports: 2 × RS-232 (16550 UART compatible)
- Parallel Port: 1 × Parallel port (SPP/EPP/ECP modes)
- Peripheral Interfaces:
- 1 × PS/2 mouse port
- 1 × PS/2 keyboard port
- Watchdog Timer: 0–30 seconds programmable interval
- Bus Interfaces:
- PICMG standard slot interface
- PC/104 expansion connector
- ISA bus compatibility
- Form Factor: Full-size slot CPU board
- Dimensions: 338 mm (L) × 122 mm (W)
- Weight: (Not specified; typically around 0.8–1.2 kg for full-size slot boards)
- Operating Environment: (Not specified; typically 0°C to 60°C for industrial boards)
- Power Requirements: (Not specified; typically 5V/12V DC supplied via backplane)
- Material: Multi-layer PCB with industrial-grade components

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4. Functionality
The CI7BMN functions as a complete CPU subsystem on a slot-based industrial backplane. It integrates processing, memory, graphics, and I/O control on a single board, allowing it to serve as the central processing unit in industrial PCs, automation controllers, and embedded systems.

Operation:
- The board is inserted into a PICMG or ISA backplane slot, where it interfaces with peripheral cards and power supply lines.
- The Socket 370 CPU executes system instructions, supported by the Intel 82440BX chipset, which manages communication between the processor, memory, and peripheral buses.
- The integrated VGA controller provides video output for display devices, while the onboard LAN interface enables network connectivity.
- IDE and FDD interfaces allow connection to storage devices, supporting both modern and legacy data storage solutions.
- Serial and parallel ports facilitate communication with industrial equipment, sensors, and control devices.
- The watchdog timer monitors system operation and can automatically reset the system if it becomes unresponsive, ensuring continuous uptime in critical applications.

Use Cases and Applications:
- Industrial automation and control systems
- Legacy equipment upgrades and maintenance
- Embedded computing platforms
- Machine vision and process monitoring systems
- Networked industrial PCs
- Data acquisition and control systems
- Transportation and infrastructure control units
- Laboratory instrumentation and test equipment

Compatibility:
- Compatible with PICMG 1.0 backplanes
- Supports PC/104 expansion modules for additional I/O or specialized functions
- ISA bus compatibility ensures integration with older industrial expansion cards

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5. Components & Accessories
Included Components:
- CI7BMN full-size slot CPU board
- Integrated VGA and LAN controllers
- Three DIMM memory sockets
- IDE and FDD connectors
- Two serial ports (DB9 or header, depending on configuration)
- One parallel port (DB25 or header)
- PS/2 keyboard and mouse connectors
- Watchdog timer circuitry
- PC/104 and ISA bus connectors

Optional Accessories (depending on configuration):
- CPU (Pentium III or Celeron, Socket 370)
- SDRAM memory modules (32 MB to 768 MB)
- IDE and FDD cables
- Backplane (PICMG or ISA)
- Power supply unit compatible with industrial chassis
- Cooling fan or passive heatsink for CPU
- LAN cable and VGA cable

Connectors and Interfaces:
- Standard PICMG edge connector for backplane interface
- PC/104 stackable connector for modular expansion
- IDE 40-pin connector for HDD
- FDD 34-pin connector
- Serial port headers (2 × 10-pin or DB9)
- Parallel port header (26-pin or DB25)
- PS/2 mini-DIN connectors for keyboard and mouse
- VGA output connector (DB15)
- RJ-45 LAN port

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6. Installation & Setup
Requirements:
- Compatible PICMG or ISA backplane
- Supported Socket 370 CPU (Pentium III or Celeron)
- SDRAM memory modules (up to 768 MB total)
- Appropriate cooling solution for CPU
- Power supply compatible with industrial chassis and backplane

Installation Steps:
1. Power off the system and disconnect all power sources.
2. Insert the CI7BMN board into the designated slot on the PICMG or ISA backplane.
3. Secure the board using mounting screws or retention clips to ensure stability.
4. Install the CPU into the Socket 370 socket, ensuring correct orientation and secure locking.
5. Attach the CPU heatsink and fan (if required).
6. Install SDRAM modules into the DIMM slots, ensuring proper seating.
7. Connect IDE and FDD cables to the respective connectors.
8. Attach external connectors (VGA, LAN, serial, parallel, PS/2) as needed.
9. Power on the system and enter BIOS setup to configure CPU frequency, memory settings, and peripheral options.
10. Install the operating system and necessary drivers for VGA, LAN, and chipset components.

Mounting Options:
- Designed for installation in industrial rackmount or wall-mount chassis with PICMG backplanes.
- Can be used in embedded enclosures supporting full-size slot CPU boards.

Configuration:
- BIOS setup utility for hardware configuration
- Jumper settings for watchdog timer, CPU frequency, and I/O options (depending on revision)

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7. Performance & Capabilities
Processing Performance:
- Supports Intel Pentium III and Celeron CPUs up to 800 MHz, providing sufficient computing power for industrial control and embedded applications.
- 512 KB SRAM cache enhances data access speed and overall system responsiveness.

Memory Performance:
- Up to 768 MB SDRAM across three DIMM slots allows for flexible memory scaling.
- SDRAM architecture ensures stable and efficient memory access.

Graphics Performance:
- Integrated VGA controller supports standard display resolutions suitable for industrial HMI and monitoring applications.

Networking Performance:
- Onboard LAN interface provides reliable Ethernet connectivity for data communication, remote monitoring, and control.

I/O Performance:
- Dual serial ports (16550 UART) ensure high-speed communication with industrial devices.
- Parallel port supports multiple modes (SPP/EPP/ECP) for printer or peripheral interfacing.

Reliability and Stability:
- Watchdog timer ensures system recovery in case of software or hardware failure.
- Industrial-grade components designed for continuous operation in demanding environments.

Limitations:
- Limited to Socket 370 CPUs (Pentium III/Celeron) with maximum 800 MHz frequency.
- SDRAM memory limited to 768 MB total capacity.
- Legacy interfaces (IDE, FDD, ISA) may not support modern peripherals.

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8. Standards & Compliance
- PICMG Compliance: Fully compliant with PICMG 1.0 standard for slot CPU boards, ensuring interoperability with standard industrial backplanes.
- PC/104 Compatibility: Supports PC/104 expansion modules for modular system design.
- ISA Bus Support: Backward compatibility with ISA bus for legacy expansion cards.
- Serial Port Standard: RS-232 compliant (16550 UART).
- Parallel Port Standard: IEEE 1284 compliant (SPP/EPP/ECP).
- Watchdog Timer: Industrial-grade reliability feature for system fault recovery.
- Regulatory Compliance: Designed to meet industrial computing standards for EMC and safety (specific certifications not listed but typically CE/FCC Class A for industrial equipment).

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9. Additional Information
Warranty: Typically provided with a standard manufacturer’s warranty (commonly 1–3 years for industrial boards).
Technical Support: Manufacturer or distributor offers technical documentation, BIOS updates, and driver support.
Maintenance:
- Regular cleaning of connectors and cooling components recommended.
- Periodic BIOS and driver updates to maintain compatibility and performance.
- Watchdog timer and system monitoring features should be tested periodically.
Product Lifecycle: Designed for long-term availability and support, suitable for industrial and embedded applications requiring extended lifecycle components.
Documentation:
- User manual with installation and configuration instructions
- Technical datasheet with pin assignments and jumper settings
- BIOS setup guide and driver package

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Summary:
The CI7BMN full-size slot CPU board is a robust, industrial-grade computing solution built around the Intel 82440BX chipset and Socket 370 architecture. Supporting Intel Pentium III and Celeron processors up to 800 MHz, it delivers reliable performance for embedded and industrial applications. With integrated VGA and LAN, multiple I/O interfaces, and compatibility with PICMG, PC/104, and ISA standards, the CI7BMN offers a versatile platform for system integrators and OEMs maintaining or upgrading legacy systems. Its comprehensive feature set—including a watchdog timer, flexible memory support, and broad connectivity—makes it ideal for automation, control, and embedded computing environments requiring stability, longevity, and compatibility.