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- Dual-Port Synchronous Serial Communication: Two independent RS-232 synchronous ports for simultaneous data transmission and reception.
- ISA Bus Interface: Compatible with standard ISA bus architecture, suitable for legacy and industrial PC systems.
- Intelligent Onboard Processing: Integrated controller for offloading communication tasks from the host CPU, improving system performance.
- Comprehensive API Library: Includes over 40 programmable functions (syio_* series) for advanced control of communication parameters, data flow, and error handling.
- Flexible Baud Rate Configuration: Supports programmable baud rates for synchronous communication.
- Hardware Flow Control: Full support for RTS/CTS, DTR/DSR, and other RS-232 control signals.
- Multi-Protocol Support: Compatible with RS-232/V.24 and V.35 standards (via optional cables).
- Windows NT Driver Support: Dedicated driver package for Windows NT systems, with configuration and removal utilities.
- Industrial Reliability: Designed for continuous operation in industrial and embedded environments.
- Diagnostic and Troubleshooting Tools: Built-in status monitoring and error reporting functions.
- ISA Bus Interface: Compatible with standard ISA bus architecture, suitable for legacy and industrial PC systems.
- Intelligent Onboard Processing: Integrated controller for offloading communication tasks from the host CPU, improving system performance.
- Comprehensive API Library: Includes over 40 programmable functions (syio_* series) for advanced control of communication parameters, data flow, and error handling.
- Flexible Baud Rate Configuration: Supports programmable baud rates for synchronous communication.
- Hardware Flow Control: Full support for RTS/CTS, DTR/DSR, and other RS-232 control signals.
- Multi-Protocol Support: Compatible with RS-232/V.24 and V.35 standards (via optional cables).
- Windows NT Driver Support: Dedicated driver package for Windows NT systems, with configuration and removal utilities.
- Industrial Reliability: Designed for continuous operation in industrial and embedded environments.
- Diagnostic and Troubleshooting Tools: Built-in status monitoring and error reporting functions.
Comprehensive Product Summary – Moxa C502-ISA/232 Dual-Port Synchronous Serial ISA Card
### 1. Product Overview
Product Name: C502 Dual-Port Sync Board
Model Number: C502-ISA/232
Series: C502 Intelligent Sync/WAN Serial ISA Card Series
Article Number: C502-ISA/232
Manufacturer: Moxa Technologies Co., Ltd.
Manufacturer Contact:
- Address: Moxa Technologies Co., Ltd., Taipei, Taiwan
- Tel: +886-2-8665-8535
- Fax: +886-2-8665-8536
- Website: [http://www.moxa.com](http://www.moxa.com)
- Email: service@moxa.com.tw
Product Description:
The Moxa C502-ISA/232 is a dual-port intelligent synchronous serial communication card designed for ISA bus systems. It provides two independent RS-232 synchronous serial ports for WAN, modem, or data communication applications. The card includes a 1-meter RS-232 cable and is engineered for industrial-grade reliability, supporting synchronous data transmission protocols and offering flexible software control through an extensive API library.
### 2. Key Features
- Dual-Port Synchronous Serial Communication: Two independent RS-232 synchronous ports for simultaneous data transmission and reception.
- ISA Bus Interface: Compatible with standard ISA bus architecture, suitable for legacy and industrial PC systems.
- Intelligent Onboard Processing: Integrated controller for offloading communication tasks from the host CPU, improving system performance.
- Comprehensive API Library: Includes over 40 programmable functions (syio_* series) for advanced control of communication parameters, data flow, and error handling.
- Flexible Baud Rate Configuration: Supports programmable baud rates for synchronous communication.
- Hardware Flow Control: Full support for RTS/CTS, DTR/DSR, and other RS-232 control signals.
- Multi-Protocol Support: Compatible with RS-232/V.24 and V.35 standards (via optional cables).
- Windows NT Driver Support: Dedicated driver package for Windows NT systems, with configuration and removal utilities.
- Industrial Reliability: Designed for continuous operation in industrial and embedded environments.
- Diagnostic and Troubleshooting Tools: Built-in status monitoring and error reporting functions.
### 3. Technical Specifications
Bus Interface:
- ISA (Industry Standard Architecture) 16-bit slot
- Plug-in board form factor
Communication Ports:
- 2 synchronous serial ports
- Interface standard: RS-232 (V.24)
- Optional V.35 interface via adapter cable
Connectors:
- DB-25 female connectors (standard RS-232 pinout)
- 1-meter RS-232 cable included
Electrical Characteristics:
- Signal levels compliant with RS-232/V.24 specifications
- Full-duplex operation supported
Dimensions & Weight:
- Approximate dimensions: 170 mm (L) × 100 mm (H) × 20 mm (W)
- Weight: ~150 g (board only)
Materials:
- Multi-layer PCB with gold-plated edge connector
- Industrial-grade electronic components
Power Requirements:
- +5 VDC from ISA bus
- Typical power consumption: < 5 W
Environmental Specifications:
- Operating temperature: 0°C to 55°C
- Storage temperature: -20°C to 85°C
- Humidity: 5%–95% non-condensing
### 4. Functionality
Operational Overview:
The C502-ISA/232 operates as a dual-port synchronous serial communication controller. Each port can independently transmit and receive data streams using synchronous protocols. The onboard processor handles framing, clocking, and error detection, minimizing CPU load.
Use Cases and Applications:
- WAN connectivity for routers and gateways
- Industrial automation systems requiring synchronous serial links
- SCADA and telemetry systems
- Legacy communication systems using ISA-based PCs
- Data acquisition and control systems
- Modem and leased-line communication setups
Compatibility:
- Compatible with Windows NT (driver provided)
- Supports standard RS-232/V.24 and optional V.35 interfaces
- Works with Moxa’s API library for custom software integration
### 5. Components & Accessories
Included Items:
- C502-ISA/232 dual-port ISA card
- 1-meter RS-232 cable (DB-25 connectors)
- User’s Manual (C502 Dual-Port Sync Board User’s Manual)
- Driver diskette or software package for Windows NT
Optional Accessories:
- V.35 adapter cable for high-speed synchronous communication
- Extended-length RS-232 cables
- Mounting brackets for industrial chassis
Connectors and Pinouts:
- RS-232/V.24 (DB-25):
- Pin 2: Transmit Data (TXD)
- Pin 3: Receive Data (RXD)
- Pin 4: Request to Send (RTS)
- Pin 5: Clear to Send (CTS)
- Pin 6: Data Set Ready (DSR)
- Pin 7: Signal Ground (GND)
- Pin 8: Data Carrier Detect (DCD)
- Pin 20: Data Terminal Ready (DTR)
- Pin 22: Ring Indicator (RI)
- V.35 (optional):
- Supports differential signal pairs for high-speed synchronous data transfer
- Pin assignments per CCITT V.35 standard
### 6. Installation & Setup
Hardware Installation:
1. Power off the host PC and remove the cover.
2. Insert the C502-ISA/232 card into an available ISA slot.
3. Secure the card with the mounting screw.
4. Connect the RS-232 cable to the external device.
5. Power on the system and verify hardware detection.
Software Installation (Windows NT):
1. Insert the driver diskette or access the installation package.
2. Run the setup utility to install the C502 Windows NT driver.
3. Configure port parameters (I/O address, IRQ, baud rate) via the configuration tool.
4. Reboot the system to activate the driver.
Driver Removal:
- Use the “Remove C502 Driver” utility from the Control Panel to uninstall.
Configuration Options:
- Adjustable I/O base address and interrupt request (IRQ) lines.
- Software-selectable baud rates and clock sources.
- API-based configuration for advanced applications.
### 7. Performance & Capabilities
Data Transmission:
- Synchronous full-duplex communication
- Programmable baud rates up to several Mbps (depending on system clock and cable length)
- Low-latency data handling via onboard processor
Efficiency:
- Offloads communication tasks from the host CPU
- Supports interrupt-driven and polled I/O modes
- Optimized for continuous data streaming
API Library Functions:
The C502 provides a comprehensive API library with over 40 functions for software developers. Key functions include:
- syio_Open / syio_Close: Initialize and terminate communication sessions.
- syio_Read / syio_Write: Perform synchronous data transfer.
- syio_SetBaud / syio_GetBaud: Configure and query baud rate settings.
- syio_SetReadTimeouts / syio_SetWriteTimeouts: Manage I/O timing parameters.
- syio_DTR / syio_RTS: Control modem signals.
- syio_SetCRCMode / syio_GetCRCMode: Configure CRC error checking.
- syio_LineStatus: Retrieve line and modem status.
- syio_FrameIrq / syio_ModemIrq / syio_TxEmptyIrq: Handle interrupt-driven events.
Limitations:
- Requires ISA slot (not compatible with PCI or modern bus architectures).
- Limited to RS-232 signaling levels unless optional V.35 adapter is used.
### 8. Standards & Compliance
Interface Standards:
- RS-232 (EIA/TIA-232, CCITT V.24)
- Optional V.35 (CCITT V.35)
Electrical & Safety Compliance:
- Designed to meet CE and FCC Class A requirements for industrial environments.
- Complies with ISO 9001 manufacturing standards.
Software Compatibility:
- Windows NT driver certified by Moxa
- API library compatible with C/C++ development environments
Industry Standards:
- ISA bus specification (IEEE P996)
- RS-232/V.24 and V.35 communication standards
### 9. Additional Information
Warranty:
- Standard 3-year limited hardware warranty from Moxa Technologies.
- Covers manufacturing defects and component failures under normal use.
Technical Support:
- Global support via Moxa’s technical service network.
- Email and phone support available during business hours.
- Online resources, FAQs, and driver downloads at [www.moxa.com](http://www.moxa.com).
Maintenance:
- Periodic inspection of connectors and cables recommended.
- Keep card and connectors free from dust and moisture.
- Firmware and driver updates available through Moxa’s website.
Return Procedure:
- Contact Moxa technical support for RMA authorization.
- Complete the Problem Report Form (included in manual).
- Ship the defective unit with proof of purchase and RMA number.
Documentation:
- C502 Dual-Port Sync Board User’s Manual (comprehensive installation, configuration, and API reference).
- Appendices include RS-232/V.24 and V.35 pin assignments, troubleshooting guide, and problem report form.
### Summary
The Moxa C502-ISA/232 Dual-Port Sync Board is a robust, industrial-grade ISA communication card designed for synchronous serial data transmission over RS-232 or V.35 interfaces. With dual independent ports, intelligent onboard processing, and a comprehensive API library, it provides developers and system integrators with a flexible platform for building reliable communication systems. Its compatibility with Windows NT, extensive configuration options, and adherence to international communication standards make it ideal for legacy industrial PCs, WAN connectivity, and automation systems requiring stable, high-performance synchronous serial communication.
Keywords for Technical Search:
Moxa C502, C502-ISA/232, dual-port synchronous serial card, RS-232 ISA board, V.24 interface, V.35 adapter, ISA communication card, synchronous WAN interface, industrial serial board, Moxa sync card, Windows NT driver, API library, syio functions, RS-232 pinout, ISA bus communication, industrial automation serial interface.
### 1. Product Overview
Product Name: C502 Dual-Port Sync Board
Model Number: C502-ISA/232
Series: C502 Intelligent Sync/WAN Serial ISA Card Series
Article Number: C502-ISA/232
Manufacturer: Moxa Technologies Co., Ltd.
Manufacturer Contact:
- Address: Moxa Technologies Co., Ltd., Taipei, Taiwan
- Tel: +886-2-8665-8535
- Fax: +886-2-8665-8536
- Website: [http://www.moxa.com](http://www.moxa.com)
- Email: service@moxa.com.tw
Product Description:
The Moxa C502-ISA/232 is a dual-port intelligent synchronous serial communication card designed for ISA bus systems. It provides two independent RS-232 synchronous serial ports for WAN, modem, or data communication applications. The card includes a 1-meter RS-232 cable and is engineered for industrial-grade reliability, supporting synchronous data transmission protocols and offering flexible software control through an extensive API library.
### 2. Key Features
- Dual-Port Synchronous Serial Communication: Two independent RS-232 synchronous ports for simultaneous data transmission and reception.
- ISA Bus Interface: Compatible with standard ISA bus architecture, suitable for legacy and industrial PC systems.
- Intelligent Onboard Processing: Integrated controller for offloading communication tasks from the host CPU, improving system performance.
- Comprehensive API Library: Includes over 40 programmable functions (syio_* series) for advanced control of communication parameters, data flow, and error handling.
- Flexible Baud Rate Configuration: Supports programmable baud rates for synchronous communication.
- Hardware Flow Control: Full support for RTS/CTS, DTR/DSR, and other RS-232 control signals.
- Multi-Protocol Support: Compatible with RS-232/V.24 and V.35 standards (via optional cables).
- Windows NT Driver Support: Dedicated driver package for Windows NT systems, with configuration and removal utilities.
- Industrial Reliability: Designed for continuous operation in industrial and embedded environments.
- Diagnostic and Troubleshooting Tools: Built-in status monitoring and error reporting functions.
### 3. Technical Specifications
Bus Interface:
- ISA (Industry Standard Architecture) 16-bit slot
- Plug-in board form factor
Communication Ports:
- 2 synchronous serial ports
- Interface standard: RS-232 (V.24)
- Optional V.35 interface via adapter cable
Connectors:
- DB-25 female connectors (standard RS-232 pinout)
- 1-meter RS-232 cable included
Electrical Characteristics:
- Signal levels compliant with RS-232/V.24 specifications
- Full-duplex operation supported
Dimensions & Weight:
- Approximate dimensions: 170 mm (L) × 100 mm (H) × 20 mm (W)
- Weight: ~150 g (board only)
Materials:
- Multi-layer PCB with gold-plated edge connector
- Industrial-grade electronic components
Power Requirements:
- +5 VDC from ISA bus
- Typical power consumption: < 5 W
Environmental Specifications:
- Operating temperature: 0°C to 55°C
- Storage temperature: -20°C to 85°C
- Humidity: 5%–95% non-condensing
### 4. Functionality
Operational Overview:
The C502-ISA/232 operates as a dual-port synchronous serial communication controller. Each port can independently transmit and receive data streams using synchronous protocols. The onboard processor handles framing, clocking, and error detection, minimizing CPU load.
Use Cases and Applications:
- WAN connectivity for routers and gateways
- Industrial automation systems requiring synchronous serial links
- SCADA and telemetry systems
- Legacy communication systems using ISA-based PCs
- Data acquisition and control systems
- Modem and leased-line communication setups
Compatibility:
- Compatible with Windows NT (driver provided)
- Supports standard RS-232/V.24 and optional V.35 interfaces
- Works with Moxa’s API library for custom software integration
### 5. Components & Accessories
Included Items:
- C502-ISA/232 dual-port ISA card
- 1-meter RS-232 cable (DB-25 connectors)
- User’s Manual (C502 Dual-Port Sync Board User’s Manual)
- Driver diskette or software package for Windows NT
Optional Accessories:
- V.35 adapter cable for high-speed synchronous communication
- Extended-length RS-232 cables
- Mounting brackets for industrial chassis
Connectors and Pinouts:
- RS-232/V.24 (DB-25):
- Pin 2: Transmit Data (TXD)
- Pin 3: Receive Data (RXD)
- Pin 4: Request to Send (RTS)
- Pin 5: Clear to Send (CTS)
- Pin 6: Data Set Ready (DSR)
- Pin 7: Signal Ground (GND)
- Pin 8: Data Carrier Detect (DCD)
- Pin 20: Data Terminal Ready (DTR)
- Pin 22: Ring Indicator (RI)
- V.35 (optional):
- Supports differential signal pairs for high-speed synchronous data transfer
- Pin assignments per CCITT V.35 standard
### 6. Installation & Setup
Hardware Installation:
1. Power off the host PC and remove the cover.
2. Insert the C502-ISA/232 card into an available ISA slot.
3. Secure the card with the mounting screw.
4. Connect the RS-232 cable to the external device.
5. Power on the system and verify hardware detection.
Software Installation (Windows NT):
1. Insert the driver diskette or access the installation package.
2. Run the setup utility to install the C502 Windows NT driver.
3. Configure port parameters (I/O address, IRQ, baud rate) via the configuration tool.
4. Reboot the system to activate the driver.
Driver Removal:
- Use the “Remove C502 Driver” utility from the Control Panel to uninstall.
Configuration Options:
- Adjustable I/O base address and interrupt request (IRQ) lines.
- Software-selectable baud rates and clock sources.
- API-based configuration for advanced applications.
### 7. Performance & Capabilities
Data Transmission:
- Synchronous full-duplex communication
- Programmable baud rates up to several Mbps (depending on system clock and cable length)
- Low-latency data handling via onboard processor
Efficiency:
- Offloads communication tasks from the host CPU
- Supports interrupt-driven and polled I/O modes
- Optimized for continuous data streaming
API Library Functions:
The C502 provides a comprehensive API library with over 40 functions for software developers. Key functions include:
- syio_Open / syio_Close: Initialize and terminate communication sessions.
- syio_Read / syio_Write: Perform synchronous data transfer.
- syio_SetBaud / syio_GetBaud: Configure and query baud rate settings.
- syio_SetReadTimeouts / syio_SetWriteTimeouts: Manage I/O timing parameters.
- syio_DTR / syio_RTS: Control modem signals.
- syio_SetCRCMode / syio_GetCRCMode: Configure CRC error checking.
- syio_LineStatus: Retrieve line and modem status.
- syio_FrameIrq / syio_ModemIrq / syio_TxEmptyIrq: Handle interrupt-driven events.
Limitations:
- Requires ISA slot (not compatible with PCI or modern bus architectures).
- Limited to RS-232 signaling levels unless optional V.35 adapter is used.
### 8. Standards & Compliance
Interface Standards:
- RS-232 (EIA/TIA-232, CCITT V.24)
- Optional V.35 (CCITT V.35)
Electrical & Safety Compliance:
- Designed to meet CE and FCC Class A requirements for industrial environments.
- Complies with ISO 9001 manufacturing standards.
Software Compatibility:
- Windows NT driver certified by Moxa
- API library compatible with C/C++ development environments
Industry Standards:
- ISA bus specification (IEEE P996)
- RS-232/V.24 and V.35 communication standards
### 9. Additional Information
Warranty:
- Standard 3-year limited hardware warranty from Moxa Technologies.
- Covers manufacturing defects and component failures under normal use.
Technical Support:
- Global support via Moxa’s technical service network.
- Email and phone support available during business hours.
- Online resources, FAQs, and driver downloads at [www.moxa.com](http://www.moxa.com).
Maintenance:
- Periodic inspection of connectors and cables recommended.
- Keep card and connectors free from dust and moisture.
- Firmware and driver updates available through Moxa’s website.
Return Procedure:
- Contact Moxa technical support for RMA authorization.
- Complete the Problem Report Form (included in manual).
- Ship the defective unit with proof of purchase and RMA number.
Documentation:
- C502 Dual-Port Sync Board User’s Manual (comprehensive installation, configuration, and API reference).
- Appendices include RS-232/V.24 and V.35 pin assignments, troubleshooting guide, and problem report form.
### Summary
The Moxa C502-ISA/232 Dual-Port Sync Board is a robust, industrial-grade ISA communication card designed for synchronous serial data transmission over RS-232 or V.35 interfaces. With dual independent ports, intelligent onboard processing, and a comprehensive API library, it provides developers and system integrators with a flexible platform for building reliable communication systems. Its compatibility with Windows NT, extensive configuration options, and adherence to international communication standards make it ideal for legacy industrial PCs, WAN connectivity, and automation systems requiring stable, high-performance synchronous serial communication.
Keywords for Technical Search:
Moxa C502, C502-ISA/232, dual-port synchronous serial card, RS-232 ISA board, V.24 interface, V.35 adapter, ISA communication card, synchronous WAN interface, industrial serial board, Moxa sync card, Windows NT driver, API library, syio functions, RS-232 pinout, ISA bus communication, industrial automation serial interface.
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