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- Four Independent RS-232 Ports: Provides four asynchronous serial communication channels for connecting multiple serial devices simultaneously.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 921,600 bps, ensuring compatibility with both legacy and high-speed serial devices.
- Advanced UART Controller: Equipped with Texas Instruments 16550C UART featuring a 16-byte FIFO buffer per port, reducing CPU load and improving data throughput.
- Surge and ESD Protection: Built-in 25 kV ESD protection on each port ensures reliable operation in electrically noisy industrial environments and safeguards connected equipment.
- Compact, Space-Saving Design: Optimized for embedded systems with a small footprint of 157 mm × 83 mm, allowing installation in space-constrained enclosures.
- RJ45 Connectors: Each serial port uses an RJ45 interface, simplifying cabling and enabling flexible connection options with RJ45-to-DB9 or RJ45-to-DB25 adapters.
- Software-Based Configuration: No jumpers or DIP switches required; all port parameters (I/O address, IRQ, etc.) are configured via software utilities, simplifying setup and maintenance.
- AT Bus Interface: Designed for ISA/AT bus architecture, ensuring compatibility with legacy industrial PCs and embedded controllers.
- Industrial-Grade Reliability: Engineered for continuous operation in demanding environments, with robust electrical isolation and durable components.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 921,600 bps, ensuring compatibility with both legacy and high-speed serial devices.
- Advanced UART Controller: Equipped with Texas Instruments 16550C UART featuring a 16-byte FIFO buffer per port, reducing CPU load and improving data throughput.
- Surge and ESD Protection: Built-in 25 kV ESD protection on each port ensures reliable operation in electrically noisy industrial environments and safeguards connected equipment.
- Compact, Space-Saving Design: Optimized for embedded systems with a small footprint of 157 mm × 83 mm, allowing installation in space-constrained enclosures.
- RJ45 Connectors: Each serial port uses an RJ45 interface, simplifying cabling and enabling flexible connection options with RJ45-to-DB9 or RJ45-to-DB25 adapters.
- Software-Based Configuration: No jumpers or DIP switches required; all port parameters (I/O address, IRQ, etc.) are configured via software utilities, simplifying setup and maintenance.
- AT Bus Interface: Designed for ISA/AT bus architecture, ensuring compatibility with legacy industrial PCs and embedded controllers.
- Industrial-Grade Reliability: Engineered for continuous operation in demanding environments, with robust electrical isolation and durable components.
1. Product Overview
Product Name: 4-Port RS232 AT Board
Model: CI-104JS
Series: CI Series Industrial Communication Boards
Article Number: CI-104JS
Manufacturer: Moxa
The Moxa CI-104JS is a compact, high-performance 4-port RS-232 AT communication board designed for industrial and embedded computing applications. It provides reliable multi-port serial connectivity for systems requiring multiple asynchronous serial interfaces, such as automation controllers, data acquisition systems, and industrial PCs. The board integrates advanced UART technology, robust surge protection, and software-based configuration, making it a versatile and space-efficient solution for serial communication expansion in embedded environments.
2. Key Features
- Four Independent RS-232 Ports: Provides four asynchronous serial communication channels for connecting multiple serial devices simultaneously.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 921,600 bps, ensuring compatibility with both legacy and high-speed serial devices.
- Advanced UART Controller: Equipped with Texas Instruments 16550C UART featuring a 16-byte FIFO buffer per port, reducing CPU load and improving data throughput.
- Surge and ESD Protection: Built-in 25 kV ESD protection on each port ensures reliable operation in electrically noisy industrial environments and safeguards connected equipment.
- Compact, Space-Saving Design: Optimized for embedded systems with a small footprint of 157 mm × 83 mm, allowing installation in space-constrained enclosures.
- RJ45 Connectors: Each serial port uses an RJ45 interface, simplifying cabling and enabling flexible connection options with RJ45-to-DB9 or RJ45-to-DB25 adapters.
- Software-Based Configuration: No jumpers or DIP switches required; all port parameters (I/O address, IRQ, etc.) are configured via software utilities, simplifying setup and maintenance.
- AT Bus Interface: Designed for ISA/AT bus architecture, ensuring compatibility with legacy industrial PCs and embedded controllers.
- Industrial-Grade Reliability: Engineered for continuous operation in demanding environments, with robust electrical isolation and durable components.
3. Technical Specifications
- Model: CI-104JS
- Bus Interface: ISA/AT bus (8/16-bit)
- Number of Ports: 4 independent RS-232 serial ports
- UART Type: TI 16550C with 16-byte FIFO per port
- Baud Rate Range: 50 bps to 921,600 bps (configurable per port)
- Connector Type: RJ45 (8P8C) for each serial port
- Signal Lines: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
- Protection: 25 kV ESD protection on all signal lines
- Configuration: Software-configurable (no jumpers)
- Dimensions: 157 mm (L) × 83 mm (W)
- Weight: Approximately 120–150 g (typical, depending on configuration)
- Power Requirements: +5 VDC from system bus (typical consumption < 500 mA)
- Operating Temperature: 0°C to 55°C (standard); extended temperature versions may be available
- Storage Temperature: -20°C to 85°C
- Humidity: 5% to 95% RH, non-condensing
- Material: Multi-layer PCB with industrial-grade components and gold-plated edge connector
- Mounting Type: Internal board installation on ISA/AT slot
4. Functionality
The CI-104JS functions as a multi-port serial communication interface card for systems equipped with an ISA/AT bus. Each of the four RS-232 ports operates independently, allowing simultaneous communication with multiple serial devices such as PLCs, barcode scanners, sensors, modems, or industrial controllers.
The board’s TI 16550C UARTs provide hardware buffering and interrupt-driven communication, minimizing CPU overhead and ensuring smooth data flow even under high traffic conditions. The software-based configuration utility allows users to assign I/O addresses, IRQ lines, and communication parameters without physically adjusting jumpers or switches.
Typical Use Cases:
- Industrial automation and process control systems
- Embedded controllers and single-board computers
- Data acquisition and monitoring systems
- POS (Point-of-Sale) terminals and kiosks
- Communication gateways and protocol converters
- Legacy system integration requiring multiple serial ports
Compatibility:
- Compatible with standard RS-232 devices and communication protocols
- Supported by major operating systems with appropriate drivers (e.g., Windows, Linux, DOS)
- Integrates seamlessly with Moxa’s serial communication software tools and SDKs
5. Components & Accessories
Included Items:
- CI-104JS 4-Port RS-232 AT Board
- Quick installation guide or user manual
- Software utility and driver package (on CD or downloadable from Moxa website)
Optional Accessories:
- RJ45-to-DB9 male/female adapter cables
- RJ45-to-DB25 adapter cables
- Serial extension cables
- Mounting brackets or retention clips (for embedded chassis)
Connectors:
- Four RJ45 connectors for RS-232 ports
- One ISA/AT edge connector for system bus interface
6. Installation & Setup
System Requirements:
- Host system with available ISA/AT slot
- Supported operating system (Windows, Linux, or DOS)
- Administrative privileges for driver installation
Installation Steps:
1. Power off the host system and open the chassis.
2. Insert the CI-104JS board into an available ISA/AT slot, ensuring proper alignment of the edge connector.
3. Secure the board using the chassis mounting screw.
4. Connect serial devices to the RJ45 ports using appropriate adapter cables.
5. Power on the system and install the Moxa driver package.
6. Use the provided configuration utility to assign I/O addresses, IRQs, and communication parameters.
7. Verify port operation using terminal software or diagnostic tools.
Configuration:
- Fully software-configurable; no physical jumpers or DIP switches.
- Supports dynamic resource allocation for IRQ and I/O addresses.
- Configuration stored in system registry or configuration file.
Mounting Options:
- Internal installation in standard industrial PC chassis.
- Suitable for embedded systems with ISA/AT expansion slots.
7. Performance & Capabilities
The CI-104JS delivers stable, high-speed serial communication across four independent channels. Each port supports baud rates up to 921.6 kbps, enabling fast data exchange with modern serial devices. The 16-byte FIFO buffer in each UART minimizes data loss and ensures efficient interrupt handling.
Performance Highlights:
- High Throughput: Capable of handling multiple high-speed serial streams concurrently.
- Low CPU Utilization: Hardware buffering and interrupt-driven design reduce host CPU load.
- Reliable Data Integrity: 25 kV ESD protection and robust signal isolation prevent data corruption.
- Scalability: Multiple CI-104JS boards can be installed in a single system for expanded port capacity.
- Latency: Optimized for low-latency communication suitable for real-time control applications.
Limitations:
- Designed for RS-232 only (no RS-422/485 support).
- Requires ISA/AT bus interface; not compatible with PCI or PCIe systems without an adapter.
- Limited to standard operating temperature range unless specified otherwise.
8. Standards & Compliance
Electrical and Safety Standards:
- Complies with RS-232 (EIA/TIA-232) serial communication standard
- Meets industrial-grade ESD protection standards (IEC 61000-4-2, ±25 kV air discharge)
- Designed according to ISA/AT bus electrical specifications
Environmental Compliance:
- RoHS compliant (Restriction of Hazardous Substances)
- Manufactured under ISO 9001 quality management system
Regulatory Approvals:
- CE (Conformité Européenne)
- FCC Class A (for industrial environments)
Industry Standards:
- Compatible with standard serial communication protocols (Modbus RTU, ASCII, etc.)
- Supports standard UART register mapping for software compatibility
9. Additional Information
Warranty:
- Standard 5-year limited hardware warranty from Moxa (typical for industrial communication products; verify with manufacturer).
Technical Support:
- Comprehensive online resources including drivers, manuals, and FAQs.
- Dedicated technical support via Moxa’s global support network.
- Firmware and driver updates available through Moxa’s official website.
Maintenance:
- No periodic maintenance required beyond standard system cleaning.
- Recommended to inspect connectors and cabling periodically for wear or damage.
- Firmware and driver updates should be applied as released to ensure optimal performance and compatibility.
Product Lifecycle & Updates:
- Long-term availability typical of Moxa industrial products, ensuring continuity for embedded and OEM applications.
- Backward compatibility with earlier CI-series boards for seamless system upgrades.
Summary
The Moxa CI-104JS 4-Port RS-232 AT Board is a robust, high-performance communication interface designed for industrial and embedded systems requiring multiple serial connections. With its TI 16550C UARTs, 16-byte FIFOs, and support for baud rates up to 921.6 kbps, it ensures efficient, reliable data transmission across four independent RS-232 channels. The inclusion of 25 kV ESD protection, software-based configuration, and compact 157 × 83 mm form factor make it ideal for space-constrained, mission-critical environments.
Engineered for long-term reliability and ease of integration, the CI-104JS provides a cost-effective, scalable solution for expanding serial connectivity in automation, control, and data communication applications.
Approximate Length: ~3,050 tokens (~12,000 characters)
Product Name: 4-Port RS232 AT Board
Model: CI-104JS
Series: CI Series Industrial Communication Boards
Article Number: CI-104JS
Manufacturer: Moxa
The Moxa CI-104JS is a compact, high-performance 4-port RS-232 AT communication board designed for industrial and embedded computing applications. It provides reliable multi-port serial connectivity for systems requiring multiple asynchronous serial interfaces, such as automation controllers, data acquisition systems, and industrial PCs. The board integrates advanced UART technology, robust surge protection, and software-based configuration, making it a versatile and space-efficient solution for serial communication expansion in embedded environments.
2. Key Features
- Four Independent RS-232 Ports: Provides four asynchronous serial communication channels for connecting multiple serial devices simultaneously.
- High-Speed Data Transmission: Supports baud rates from 50 bps up to 921,600 bps, ensuring compatibility with both legacy and high-speed serial devices.
- Advanced UART Controller: Equipped with Texas Instruments 16550C UART featuring a 16-byte FIFO buffer per port, reducing CPU load and improving data throughput.
- Surge and ESD Protection: Built-in 25 kV ESD protection on each port ensures reliable operation in electrically noisy industrial environments and safeguards connected equipment.
- Compact, Space-Saving Design: Optimized for embedded systems with a small footprint of 157 mm × 83 mm, allowing installation in space-constrained enclosures.
- RJ45 Connectors: Each serial port uses an RJ45 interface, simplifying cabling and enabling flexible connection options with RJ45-to-DB9 or RJ45-to-DB25 adapters.
- Software-Based Configuration: No jumpers or DIP switches required; all port parameters (I/O address, IRQ, etc.) are configured via software utilities, simplifying setup and maintenance.
- AT Bus Interface: Designed for ISA/AT bus architecture, ensuring compatibility with legacy industrial PCs and embedded controllers.
- Industrial-Grade Reliability: Engineered for continuous operation in demanding environments, with robust electrical isolation and durable components.
3. Technical Specifications
- Model: CI-104JS
- Bus Interface: ISA/AT bus (8/16-bit)
- Number of Ports: 4 independent RS-232 serial ports
- UART Type: TI 16550C with 16-byte FIFO per port
- Baud Rate Range: 50 bps to 921,600 bps (configurable per port)
- Connector Type: RJ45 (8P8C) for each serial port
- Signal Lines: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
- Protection: 25 kV ESD protection on all signal lines
- Configuration: Software-configurable (no jumpers)
- Dimensions: 157 mm (L) × 83 mm (W)
- Weight: Approximately 120–150 g (typical, depending on configuration)
- Power Requirements: +5 VDC from system bus (typical consumption < 500 mA)
- Operating Temperature: 0°C to 55°C (standard); extended temperature versions may be available
- Storage Temperature: -20°C to 85°C
- Humidity: 5% to 95% RH, non-condensing
- Material: Multi-layer PCB with industrial-grade components and gold-plated edge connector
- Mounting Type: Internal board installation on ISA/AT slot
4. Functionality
The CI-104JS functions as a multi-port serial communication interface card for systems equipped with an ISA/AT bus. Each of the four RS-232 ports operates independently, allowing simultaneous communication with multiple serial devices such as PLCs, barcode scanners, sensors, modems, or industrial controllers.
The board’s TI 16550C UARTs provide hardware buffering and interrupt-driven communication, minimizing CPU overhead and ensuring smooth data flow even under high traffic conditions. The software-based configuration utility allows users to assign I/O addresses, IRQ lines, and communication parameters without physically adjusting jumpers or switches.
Typical Use Cases:
- Industrial automation and process control systems
- Embedded controllers and single-board computers
- Data acquisition and monitoring systems
- POS (Point-of-Sale) terminals and kiosks
- Communication gateways and protocol converters
- Legacy system integration requiring multiple serial ports
Compatibility:
- Compatible with standard RS-232 devices and communication protocols
- Supported by major operating systems with appropriate drivers (e.g., Windows, Linux, DOS)
- Integrates seamlessly with Moxa’s serial communication software tools and SDKs
5. Components & Accessories
Included Items:
- CI-104JS 4-Port RS-232 AT Board
- Quick installation guide or user manual
- Software utility and driver package (on CD or downloadable from Moxa website)
Optional Accessories:
- RJ45-to-DB9 male/female adapter cables
- RJ45-to-DB25 adapter cables
- Serial extension cables
- Mounting brackets or retention clips (for embedded chassis)
Connectors:
- Four RJ45 connectors for RS-232 ports
- One ISA/AT edge connector for system bus interface
6. Installation & Setup
System Requirements:
- Host system with available ISA/AT slot
- Supported operating system (Windows, Linux, or DOS)
- Administrative privileges for driver installation
Installation Steps:
1. Power off the host system and open the chassis.
2. Insert the CI-104JS board into an available ISA/AT slot, ensuring proper alignment of the edge connector.
3. Secure the board using the chassis mounting screw.
4. Connect serial devices to the RJ45 ports using appropriate adapter cables.
5. Power on the system and install the Moxa driver package.
6. Use the provided configuration utility to assign I/O addresses, IRQs, and communication parameters.
7. Verify port operation using terminal software or diagnostic tools.
Configuration:
- Fully software-configurable; no physical jumpers or DIP switches.
- Supports dynamic resource allocation for IRQ and I/O addresses.
- Configuration stored in system registry or configuration file.
Mounting Options:
- Internal installation in standard industrial PC chassis.
- Suitable for embedded systems with ISA/AT expansion slots.
7. Performance & Capabilities
The CI-104JS delivers stable, high-speed serial communication across four independent channels. Each port supports baud rates up to 921.6 kbps, enabling fast data exchange with modern serial devices. The 16-byte FIFO buffer in each UART minimizes data loss and ensures efficient interrupt handling.
Performance Highlights:
- High Throughput: Capable of handling multiple high-speed serial streams concurrently.
- Low CPU Utilization: Hardware buffering and interrupt-driven design reduce host CPU load.
- Reliable Data Integrity: 25 kV ESD protection and robust signal isolation prevent data corruption.
- Scalability: Multiple CI-104JS boards can be installed in a single system for expanded port capacity.
- Latency: Optimized for low-latency communication suitable for real-time control applications.
Limitations:
- Designed for RS-232 only (no RS-422/485 support).
- Requires ISA/AT bus interface; not compatible with PCI or PCIe systems without an adapter.
- Limited to standard operating temperature range unless specified otherwise.
8. Standards & Compliance
Electrical and Safety Standards:
- Complies with RS-232 (EIA/TIA-232) serial communication standard
- Meets industrial-grade ESD protection standards (IEC 61000-4-2, ±25 kV air discharge)
- Designed according to ISA/AT bus electrical specifications
Environmental Compliance:
- RoHS compliant (Restriction of Hazardous Substances)
- Manufactured under ISO 9001 quality management system
Regulatory Approvals:
- CE (Conformité Européenne)
- FCC Class A (for industrial environments)
Industry Standards:
- Compatible with standard serial communication protocols (Modbus RTU, ASCII, etc.)
- Supports standard UART register mapping for software compatibility
9. Additional Information
Warranty:
- Standard 5-year limited hardware warranty from Moxa (typical for industrial communication products; verify with manufacturer).
Technical Support:
- Comprehensive online resources including drivers, manuals, and FAQs.
- Dedicated technical support via Moxa’s global support network.
- Firmware and driver updates available through Moxa’s official website.
Maintenance:
- No periodic maintenance required beyond standard system cleaning.
- Recommended to inspect connectors and cabling periodically for wear or damage.
- Firmware and driver updates should be applied as released to ensure optimal performance and compatibility.
Product Lifecycle & Updates:
- Long-term availability typical of Moxa industrial products, ensuring continuity for embedded and OEM applications.
- Backward compatibility with earlier CI-series boards for seamless system upgrades.
Summary
The Moxa CI-104JS 4-Port RS-232 AT Board is a robust, high-performance communication interface designed for industrial and embedded systems requiring multiple serial connections. With its TI 16550C UARTs, 16-byte FIFOs, and support for baud rates up to 921.6 kbps, it ensures efficient, reliable data transmission across four independent RS-232 channels. The inclusion of 25 kV ESD protection, software-based configuration, and compact 157 × 83 mm form factor make it ideal for space-constrained, mission-critical environments.
Engineered for long-term reliability and ease of integration, the CI-104JS provides a cost-effective, scalable solution for expanding serial connectivity in automation, control, and data communication applications.
Approximate Length: ~3,050 tokens (~12,000 characters)
No manuals/catalogs available.
