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- Four RS-232 Ports: Provides four independent asynchronous serial ports for multi-device connectivity.
- High-Speed Communication: Supports data transfer rates from 50 bps up to 921.6 Kbps.
- TI 16C550C UART: Each port uses a high-performance 16C550C or compatible UART with 32-byte transmit/receive FIFO buffers for efficient data handling.
- Plug and Play PCI Interface: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses are automatically assigned by the PCI BIOS—no jumpers or switches required.
- On-Chip Hardware Flow Control: Ensures no data loss during high-speed transmission.
- Compact Half-Size Design: Board dimensions of 120 mm × 100 mm allow installation in standard PCI slots without occupying excessive space.
- Optional Surge Protection: The C104HS/PCI variant includes 2 kV surge protection for harsh industrial environments.
- Comprehensive OS Support: Compatible with Windows NT, Windows 95/98, and DOS.
- Powerful Software Tools: Bundled with Moxa’s _PComm_ Lite communication library and utilities for diagnostics, monitoring, and terminal emulation.
- Flexible Connectivity: Includes a DB37-to-4×DB9 male fan-out cable (DB25 male option available).
- Reliable ASIC Design: Ensures stable operation and long-term reliability in industrial and commercial applications.
- High-Speed Communication: Supports data transfer rates from 50 bps up to 921.6 Kbps.
- TI 16C550C UART: Each port uses a high-performance 16C550C or compatible UART with 32-byte transmit/receive FIFO buffers for efficient data handling.
- Plug and Play PCI Interface: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses are automatically assigned by the PCI BIOS—no jumpers or switches required.
- On-Chip Hardware Flow Control: Ensures no data loss during high-speed transmission.
- Compact Half-Size Design: Board dimensions of 120 mm × 100 mm allow installation in standard PCI slots without occupying excessive space.
- Optional Surge Protection: The C104HS/PCI variant includes 2 kV surge protection for harsh industrial environments.
- Comprehensive OS Support: Compatible with Windows NT, Windows 95/98, and DOS.
- Powerful Software Tools: Bundled with Moxa’s _PComm_ Lite communication library and utilities for diagnostics, monitoring, and terminal emulation.
- Flexible Connectivity: Includes a DB37-to-4×DB9 male fan-out cable (DB25 male option available).
- Reliable ASIC Design: Ensures stable operation and long-term reliability in industrial and commercial applications.
1. Product Overview
Product Name: Smartio C104H/PCI
Model: C104H/PCI
Series: Smartio C104H/PCI Series (includes C104H/PCI and C104HS/PCI)
Article Number: C104H/PCI
Manufacturer: Moxa Technologies Co., Ltd.
Manufacturer Contact:
Tel: +886-2-8665-6373 Fax: +886-2-8665-6372
Website: [www.moxa.com](http://www.moxa.com) Email: support@moxa.com.tw
The Moxa Smartio C104H/PCI is a four-port high-speed asynchronous serial communication board designed for 32-bit PCI bus systems. It provides four independent RS-232 serial ports with data rates up to 921.6 Kbps, making it ideal for connecting multiple serial devices such as modems, terminals, printers, barcode readers, and industrial automation equipment to a single PC. The board features a TI 16C550C UART with 32-byte FIFO buffers and on-chip hardware flow control to ensure reliable, loss-free data transmission at high speeds.
2. Key Features
- Four RS-232 Ports: Provides four independent asynchronous serial ports for multi-device connectivity.
- High-Speed Communication: Supports data transfer rates from 50 bps up to 921.6 Kbps.
- TI 16C550C UART: Each port uses a high-performance 16C550C or compatible UART with 32-byte transmit/receive FIFO buffers for efficient data handling.
- Plug and Play PCI Interface: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses are automatically assigned by the PCI BIOS—no jumpers or switches required.
- On-Chip Hardware Flow Control: Ensures no data loss during high-speed transmission.
- Compact Half-Size Design: Board dimensions of 120 mm × 100 mm allow installation in standard PCI slots without occupying excessive space.
- Optional Surge Protection: The C104HS/PCI variant includes 2 kV surge protection for harsh industrial environments.
- Comprehensive OS Support: Compatible with Windows NT, Windows 95/98, and DOS.
- Powerful Software Tools: Bundled with Moxa’s _PComm_ Lite communication library and utilities for diagnostics, monitoring, and terminal emulation.
- Flexible Connectivity: Includes a DB37-to-4×DB9 male fan-out cable (DB25 male option available).
- Reliable ASIC Design: Ensures stable operation and long-term reliability in industrial and commercial applications.
3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | 32-bit PCI, compliant with PCI Spec. 2.1 |
| Number of Ports | 4 RS-232 asynchronous serial ports |
| UART Type | 4 × 16C550C or compatible |
| FIFO Buffer | 32-byte transmit and receive FIFO per port |
| Baud Rate | 50 bps to 921.6 Kbps |
| Data Bits | 5, 6, 7, or 8 |
| Stop Bits | 1, 1.5, or 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | Hardware (RTS/CTS, DTR/DSR, DCD) |
| Connectors | DB37 on board; fan-out cable to 4 × DB9 male (Opt4D) or 4 × DB25 male (Opt4C) |
| Signal Lines | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| Surge Protection | Up to 2000 V (C104HS/PCI model only) |
| Power Requirements | +5 V @ 86 mA max, +12 V @ 210 mA max, –12 V @ 266 mA max (C104H/PCI); +5 V @ 110 mA, +12 V @ 230 mA, –12 V @ 320 mA (C104HS/PCI) |
| Dimensions | 120 mm × 100 mm |
| Operating Temperature | 0°C to 55°C |
| I/O Address & IRQ | Automatically assigned by PCI BIOS |
| Compliance | PCI 2.1, Plug and Play compatible |
4. Functionality
The Smartio C104H/PCI operates as a multiport serial communication controller for PCs equipped with PCI slots. Each of its four RS-232 ports functions independently, allowing simultaneous communication with multiple serial devices. The board’s 16C550C UARTs manage data buffering and flow control, minimizing CPU load and preventing data loss even at maximum baud rates.
Typical Applications:
- Industrial automation and process control systems
- Point-of-Sale (POS) terminals and kiosks
- Data acquisition and measurement systems
- Remote access servers and Internet/intranet gateways
- Telecommunications and networking equipment
- Office automation and multi-user systems
Compatibility:
- Fully compatible with standard RS-232 devices such as modems, barcode scanners, printers, and terminals.
- Supports Windows NT, Windows 95/98, and DOS environments.
- Works with Moxa’s _PComm_ library for custom application development in Visual C++, Visual Basic, or Delphi.
5. Components & Accessories
Included Items:
- Smartio C104H/PCI 4-port serial board
- Device driver diskettes for Windows NT and Windows 95/98
- _PComm_ Lite software package (communication library and utilities)
- Smartio C104H/PCI Series User’s Manual
- Connection cable (DB37 to 4 × DB9 male, Opt4D)
- Optional: DB37 to 4 × DB25 male cable (Opt4C)
Optional Accessories:
- Surge-protected version (C104HS/PCI)
- Custom fan-out cables (e.g., DB37 to RJ45)
- Additional _PComm_ software utilities and updates via Moxa FTP site
Connectors:
- On-board DB37 female connector
- Fan-out cable provides four DB9 or DB25 male connectors for device connection
6. Installation & Setup
Hardware Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the C104H/PCI board into an available 32-bit PCI slot.
3. Secure the board with the bracket screw.
4. Connect the supplied DB37 fan-out cable to the board’s connector.
5. Power on the PC; the PCI BIOS automatically assigns IRQ and I/O addresses.
6. Proceed with software driver installation.
Software Installation:
- Windows NT: Install via Control Panel → Network → Adapters → Add → Have Disk. Configure COM port numbers and FIFO settings using the Moxa Smartio/Industio Configuration Panel.
- Windows 95/98: Plug and Play detection automatically prompts driver installation. Configure ports through Device Manager or Moxa Utility.
- DOS: Supported upon request; drivers available from Moxa.
Configuration Options:
- Assign COM numbers manually or automatically.
- Adjust FIFO trigger levels (1, 4, 8, or 14 bytes) and transmit FIFO size (1–16 bytes).
- Up to four boards can be installed in one system, each with unique IRQ and I/O assignments.
7. Performance & Capabilities
- Maximum Data Rate: 921.6 Kbps per port.
- FIFO Buffering: 32-byte transmit and receive buffers reduce CPU overhead and prevent data loss.
- Hardware Flow Control: RTS/CTS and DTR/DSR ensure reliable communication under heavy data loads.
- Multi-Board Support: Up to four C104H/PCI boards can coexist in a single system, providing up to 16 serial ports.
- Plug and Play Resource Allocation: Automatic IRQ and I/O address assignment by PCI BIOS eliminates manual configuration.
- Surge Protection (C104HS/PCI): 2 kV isolation for industrial environments with high electrical noise.
- Reliability: ASIC-based design ensures stable operation and long-term durability.
Limitations:
- Requires available IRQ and I/O resources in the host system.
- Slot-dependent configuration—moving the board to a different PCI slot may require driver reconfiguration.
- RS-232 only (no RS-422/485 support).
8. Standards & Compliance
- PCI Specification: Version 2.1 compliant
- Electrical Interface: RS-232 standard
- Operating System Drivers: Windows NT, Windows 95/98, DOS
- Plug and Play: Fully supported; automatic resource allocation
- Surge Protection: TVSS technology (Transient Voltage Surge Suppressor) on C104HS/PCI
- Industry Standards:
- UART 16C550C compatible
- Win32 COMM API compliant drivers
- VCOMM-compliant virtual device drivers for Windows 95/98
- Regulatory Compliance: Designed to meet industrial and office EMC and safety standards (specific certifications depend on region and model).
9. Additional Information
Warranty & Support:
- Moxa provides standard warranty coverage for manufacturing defects.
- Technical support available via email (support@moxa.com.tw), FTP (ftp.moxa.com), and web resources.
- Driver and firmware updates downloadable from Moxa’s FTP site.
Maintenance:
- No periodic maintenance required beyond ensuring secure cable connections and clean PCI contacts.
- For surge-protected models, verify grounding integrity in high-interference environments.
Software Tools:
- _PComm_ Lite: Includes communication library, diagnostic, monitor, and terminal emulator utilities.
- Diagnostic Utility: Tests IRQ, TxD/RxD, CTS/RTS, DTR/DSR, and DCD signals.
- Monitor Utility: Displays real-time port status and throughput (Windows NT only).
- Terminal Emulator: Supports VT100/ANSI modes and file transfer protocols (ASCII, XMODEM, YMODEM, ZMODEM, KERMIT).
- Programming Library: Simplifies serial communication development in Visual C++, Visual Basic, and Delphi.
Troubleshooting Highlights:
- Board Not Detected: Ensure proper seating in PCI slot and available IRQ resources.
- Data Transmission Failure: Verify cable wiring and flow control settings.
- IRQ Conflicts: Adjust BIOS PCI IRQ assignments.
- COM Port Conflicts: Reassign COM numbers via configuration utility.
Return & Service Procedure:
- Obtain RMA number from Moxa or authorized dealer.
- Provide proof of purchase and completed Problem Report Form.
- Ship product in anti-static packaging with RMA number clearly marked.
Summary
The Moxa Smartio C104H/PCI is a robust, high-performance four-port RS-232 PCI communication board engineered for industrial and commercial multiport serial applications. With its 32-bit PCI interface, 16C550C UART architecture, and 921.6 Kbps throughput, it delivers reliable, high-speed serial connectivity for a wide range of devices. The board’s Plug and Play design simplifies installation, while Moxa’s comprehensive driver and software support ensure seamless integration with Windows and DOS systems. Optional surge protection, compact form factor, and extensive diagnostic tools make the C104H/PCI an ideal solution for industrial automation, POS systems, and data communication environments requiring stable, multiport serial connectivity.
Product Name: Smartio C104H/PCI
Model: C104H/PCI
Series: Smartio C104H/PCI Series (includes C104H/PCI and C104HS/PCI)
Article Number: C104H/PCI
Manufacturer: Moxa Technologies Co., Ltd.
Manufacturer Contact:
Tel: +886-2-8665-6373 Fax: +886-2-8665-6372
Website: [www.moxa.com](http://www.moxa.com) Email: support@moxa.com.tw
The Moxa Smartio C104H/PCI is a four-port high-speed asynchronous serial communication board designed for 32-bit PCI bus systems. It provides four independent RS-232 serial ports with data rates up to 921.6 Kbps, making it ideal for connecting multiple serial devices such as modems, terminals, printers, barcode readers, and industrial automation equipment to a single PC. The board features a TI 16C550C UART with 32-byte FIFO buffers and on-chip hardware flow control to ensure reliable, loss-free data transmission at high speeds.
2. Key Features
- Four RS-232 Ports: Provides four independent asynchronous serial ports for multi-device connectivity.
- High-Speed Communication: Supports data transfer rates from 50 bps up to 921.6 Kbps.
- TI 16C550C UART: Each port uses a high-performance 16C550C or compatible UART with 32-byte transmit/receive FIFO buffers for efficient data handling.
- Plug and Play PCI Interface: Fully compliant with PCI Specification 2.1; IRQ and I/O addresses are automatically assigned by the PCI BIOS—no jumpers or switches required.
- On-Chip Hardware Flow Control: Ensures no data loss during high-speed transmission.
- Compact Half-Size Design: Board dimensions of 120 mm × 100 mm allow installation in standard PCI slots without occupying excessive space.
- Optional Surge Protection: The C104HS/PCI variant includes 2 kV surge protection for harsh industrial environments.
- Comprehensive OS Support: Compatible with Windows NT, Windows 95/98, and DOS.
- Powerful Software Tools: Bundled with Moxa’s _PComm_ Lite communication library and utilities for diagnostics, monitoring, and terminal emulation.
- Flexible Connectivity: Includes a DB37-to-4×DB9 male fan-out cable (DB25 male option available).
- Reliable ASIC Design: Ensures stable operation and long-term reliability in industrial and commercial applications.
3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | 32-bit PCI, compliant with PCI Spec. 2.1 |
| Number of Ports | 4 RS-232 asynchronous serial ports |
| UART Type | 4 × 16C550C or compatible |
| FIFO Buffer | 32-byte transmit and receive FIFO per port |
| Baud Rate | 50 bps to 921.6 Kbps |
| Data Bits | 5, 6, 7, or 8 |
| Stop Bits | 1, 1.5, or 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | Hardware (RTS/CTS, DTR/DSR, DCD) |
| Connectors | DB37 on board; fan-out cable to 4 × DB9 male (Opt4D) or 4 × DB25 male (Opt4C) |
| Signal Lines | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| Surge Protection | Up to 2000 V (C104HS/PCI model only) |
| Power Requirements | +5 V @ 86 mA max, +12 V @ 210 mA max, –12 V @ 266 mA max (C104H/PCI); +5 V @ 110 mA, +12 V @ 230 mA, –12 V @ 320 mA (C104HS/PCI) |
| Dimensions | 120 mm × 100 mm |
| Operating Temperature | 0°C to 55°C |
| I/O Address & IRQ | Automatically assigned by PCI BIOS |
| Compliance | PCI 2.1, Plug and Play compatible |
4. Functionality
The Smartio C104H/PCI operates as a multiport serial communication controller for PCs equipped with PCI slots. Each of its four RS-232 ports functions independently, allowing simultaneous communication with multiple serial devices. The board’s 16C550C UARTs manage data buffering and flow control, minimizing CPU load and preventing data loss even at maximum baud rates.
Typical Applications:
- Industrial automation and process control systems
- Point-of-Sale (POS) terminals and kiosks
- Data acquisition and measurement systems
- Remote access servers and Internet/intranet gateways
- Telecommunications and networking equipment
- Office automation and multi-user systems
Compatibility:
- Fully compatible with standard RS-232 devices such as modems, barcode scanners, printers, and terminals.
- Supports Windows NT, Windows 95/98, and DOS environments.
- Works with Moxa’s _PComm_ library for custom application development in Visual C++, Visual Basic, or Delphi.
5. Components & Accessories
Included Items:
- Smartio C104H/PCI 4-port serial board
- Device driver diskettes for Windows NT and Windows 95/98
- _PComm_ Lite software package (communication library and utilities)
- Smartio C104H/PCI Series User’s Manual
- Connection cable (DB37 to 4 × DB9 male, Opt4D)
- Optional: DB37 to 4 × DB25 male cable (Opt4C)
Optional Accessories:
- Surge-protected version (C104HS/PCI)
- Custom fan-out cables (e.g., DB37 to RJ45)
- Additional _PComm_ software utilities and updates via Moxa FTP site
Connectors:
- On-board DB37 female connector
- Fan-out cable provides four DB9 or DB25 male connectors for device connection
6. Installation & Setup
Hardware Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the C104H/PCI board into an available 32-bit PCI slot.
3. Secure the board with the bracket screw.
4. Connect the supplied DB37 fan-out cable to the board’s connector.
5. Power on the PC; the PCI BIOS automatically assigns IRQ and I/O addresses.
6. Proceed with software driver installation.
Software Installation:
- Windows NT: Install via Control Panel → Network → Adapters → Add → Have Disk. Configure COM port numbers and FIFO settings using the Moxa Smartio/Industio Configuration Panel.
- Windows 95/98: Plug and Play detection automatically prompts driver installation. Configure ports through Device Manager or Moxa Utility.
- DOS: Supported upon request; drivers available from Moxa.
Configuration Options:
- Assign COM numbers manually or automatically.
- Adjust FIFO trigger levels (1, 4, 8, or 14 bytes) and transmit FIFO size (1–16 bytes).
- Up to four boards can be installed in one system, each with unique IRQ and I/O assignments.
7. Performance & Capabilities
- Maximum Data Rate: 921.6 Kbps per port.
- FIFO Buffering: 32-byte transmit and receive buffers reduce CPU overhead and prevent data loss.
- Hardware Flow Control: RTS/CTS and DTR/DSR ensure reliable communication under heavy data loads.
- Multi-Board Support: Up to four C104H/PCI boards can coexist in a single system, providing up to 16 serial ports.
- Plug and Play Resource Allocation: Automatic IRQ and I/O address assignment by PCI BIOS eliminates manual configuration.
- Surge Protection (C104HS/PCI): 2 kV isolation for industrial environments with high electrical noise.
- Reliability: ASIC-based design ensures stable operation and long-term durability.
Limitations:
- Requires available IRQ and I/O resources in the host system.
- Slot-dependent configuration—moving the board to a different PCI slot may require driver reconfiguration.
- RS-232 only (no RS-422/485 support).
8. Standards & Compliance
- PCI Specification: Version 2.1 compliant
- Electrical Interface: RS-232 standard
- Operating System Drivers: Windows NT, Windows 95/98, DOS
- Plug and Play: Fully supported; automatic resource allocation
- Surge Protection: TVSS technology (Transient Voltage Surge Suppressor) on C104HS/PCI
- Industry Standards:
- UART 16C550C compatible
- Win32 COMM API compliant drivers
- VCOMM-compliant virtual device drivers for Windows 95/98
- Regulatory Compliance: Designed to meet industrial and office EMC and safety standards (specific certifications depend on region and model).
9. Additional Information
Warranty & Support:
- Moxa provides standard warranty coverage for manufacturing defects.
- Technical support available via email (support@moxa.com.tw), FTP (ftp.moxa.com), and web resources.
- Driver and firmware updates downloadable from Moxa’s FTP site.
Maintenance:
- No periodic maintenance required beyond ensuring secure cable connections and clean PCI contacts.
- For surge-protected models, verify grounding integrity in high-interference environments.
Software Tools:
- _PComm_ Lite: Includes communication library, diagnostic, monitor, and terminal emulator utilities.
- Diagnostic Utility: Tests IRQ, TxD/RxD, CTS/RTS, DTR/DSR, and DCD signals.
- Monitor Utility: Displays real-time port status and throughput (Windows NT only).
- Terminal Emulator: Supports VT100/ANSI modes and file transfer protocols (ASCII, XMODEM, YMODEM, ZMODEM, KERMIT).
- Programming Library: Simplifies serial communication development in Visual C++, Visual Basic, and Delphi.
Troubleshooting Highlights:
- Board Not Detected: Ensure proper seating in PCI slot and available IRQ resources.
- Data Transmission Failure: Verify cable wiring and flow control settings.
- IRQ Conflicts: Adjust BIOS PCI IRQ assignments.
- COM Port Conflicts: Reassign COM numbers via configuration utility.
Return & Service Procedure:
- Obtain RMA number from Moxa or authorized dealer.
- Provide proof of purchase and completed Problem Report Form.
- Ship product in anti-static packaging with RMA number clearly marked.
Summary
The Moxa Smartio C104H/PCI is a robust, high-performance four-port RS-232 PCI communication board engineered for industrial and commercial multiport serial applications. With its 32-bit PCI interface, 16C550C UART architecture, and 921.6 Kbps throughput, it delivers reliable, high-speed serial connectivity for a wide range of devices. The board’s Plug and Play design simplifies installation, while Moxa’s comprehensive driver and software support ensure seamless integration with Windows and DOS systems. Optional surge protection, compact form factor, and extensive diagnostic tools make the C104H/PCI an ideal solution for industrial automation, POS systems, and data communication environments requiring stable, multiport serial connectivity.
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C104H_PCI.pdf
Manual
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