Comprehensive Product Summary – SUNIX IPC‑B2002 PC/104+ 2‑Port RS‑422/485 Professional Card

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### 1. Product Overview

Product Name: PC/104+ 2‑Port RS‑422/485 Professional Card
Model Number: IPC‑B2002
Series: Industrial Multi‑Port Serial Communication Boards (PCI/104 Family)
Article Number: IPC‑B2002
Manufacturer: SUNIX Co., Ltd. (SUNIX I.N.C.)
Product Type: Industrial PC/104+ serial communication expansion card
Bus Interface: 32‑bit PCI/104 (PC/104+)

The SUNIX IPC‑B2002 is a compact, high‑performance industrial communication board designed to expand embedded systems with two independent RS‑422/485 serial ports. It belongs to SUNIX’s professional PC/104+ series, engineered for industrial automation, data acquisition, and embedded control applications requiring reliable, high‑speed serial connectivity. The card integrates advanced UART technology, automatic RS‑422/485 detection, and SUNIX’s proprietary AHDC/CS™ hardware direction control for precise and efficient data transmission.

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### 2. Key Features

- Dual RS‑422/485 Ports: Provides two independent serial communication channels supporting both RS‑422 full‑duplex and RS‑485 half‑duplex modes.
- Automatic RS‑422/485 Detection and Switching: SUNIX’s Auto Detect & Switch technology automatically identifies the communication mode (RS‑422 or RS‑485) without manual jumper configuration, simplifying setup and reducing downtime.
- SUNIX AHDC/CS™ Technology: Auto Hardware Direction Control/Carrier Sense ensures precise control of RS‑485 signal direction, automatically enabling or disabling the driver based on bus activity to prevent data collisions.
- High‑Speed Communication: Supports baud rates from 75 bps up to 921.6 Kbps, suitable for demanding real‑time and industrial control applications.
- 64‑Byte Hardware FIFO: Each port includes a 64‑byte FIFO buffer, 16C750‑compatible, ensuring smooth data flow and minimizing CPU load.
- Software Flow Control: Supports XON/XOFF software flow control for reliable data transmission.
- Embedded 15 kV ESD Protection: Built‑in electrostatic discharge protection safeguards the card and connected devices against transient voltage spikes.
- Compact PC/104+ Form Factor: Designed for embedded and stackable systems, compatible with PC/104+ architecture.
- Unlimited Card Integration: Multiple cards can be installed in a single system (limited only by available PC/104+ slots).
- Wide Temperature Range: Operates reliably from 0°C to 70°C, with storage capability from ‑40°C to 85°C.
- Industrial‑Grade Reliability: Engineered for continuous operation in harsh environments, with robust electrical protection and stable performance.
- Comprehensive OS Support: Compatible with DOS, Linux (2.4/2.6 kernels), SCO OpenServer 5.06/5.07, and Microsoft Windows 2000, XP, 2003, and Vista (32/64‑bit).
- CE and FCC Class B Certified: Meets international electromagnetic compatibility and safety standards.
- 5‑Year Warranty: Long‑term reliability backed by SUNIX’s industrial warranty program.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Model | IPC‑B2002 |
| Bus Interface | 32‑bit PCI/104 (PC/104+) |
| Number of Ports | 2 independent RS‑422/485 ports |
| Connector Type | 5×2 pin header (on‑board) |
| Communication Standard | RS‑422 full‑duplex / RS‑485 half‑duplex |
| Baud Rate | 75 bps to 921.6 Kbps |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | XON/XOFF (software) |
| FIFO Buffer | 64‑byte hardware FIFO, 16C750 compatible |
| RS‑485 Direction Control | SUNIX AHDC/CS™ automatic hardware control |
| RS‑422/485 Mode Selection | Auto Detect and Switch (no jumper required) |
| ESD Protection | 15 kV embedded protection on all signal lines |
| Surge Protection (SI version) | 600 W peak per IEC 61000‑4‑5 (optional) |
| Isolation (SI version) | 2.5 kV optical isolation for signal and power |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | ‑40°C to 85°C |
| Operating Humidity | 5% to 95% RH (non‑condensing) |
| Dimensions (W × D) | 90.17 × 95.89 mm |
| Maximum Cards per System | Up to 4 cards (limited by PC/104+ slots) |
| Regulatory Compliance | CE, FCC Class B |
| Warranty | 5 years |

Signal Pin Assignments:
- RS‑422: TxD+, TxD‑, RxD+, RxD‑, GND
- 4‑Wire RS‑485: TxD+, TxD‑, RxD+, RxD‑, GND
- 2‑Wire RS‑485: Data+, Data‑, GND

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### 4. Functionality

The IPC‑B2002 functions as a dual‑channel serial communication interface for embedded and industrial systems using the PC/104+ bus. It enables reliable data exchange between host controllers and serial devices such as sensors, PLCs, motor drives, and industrial instruments.

Operating Principle:
- Each port operates independently, supporting either RS‑422 or RS‑485 signaling.
- The Auto Detect & Switch mechanism identifies the connected interface type and configures the transceiver accordingly.
- In RS‑485 mode, AHDC/CS™ automatically manages the transmit/receive direction, ensuring precise timing and preventing bus contention.
- The 64‑byte FIFO buffers incoming and outgoing data, reducing CPU overhead and improving throughput.
- Software flow control (XON/XOFF) ensures data integrity during high‑speed communication.

Typical Applications:
- Industrial automation and process control systems
- Embedded controllers and data acquisition units
- Building management and HVAC systems
- Transportation and traffic control equipment
- POS (Point‑of‑Sale) and kiosk systems
- Medical instrumentation and monitoring systems
- SCADA and remote telemetry units

Compatibility:
- Fully compatible with PC/104+ embedded platforms.
- Supports major operating systems: DOS, Linux (2.4/2.6), SCO OpenServer, Windows 2000/XP/2003/Vista (32/64‑bit).
- Works with Intel® and AMD® 32/64‑bit architectures.

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### 5. Components & Accessories

Included Items:
- IPC‑B2002 PC/104+ 2‑Port RS‑422/485 Card
- Connection Cable: 5×2 pin header to dual DB9 male connectors (30 cm)
- Driver CD (Windows, Linux, DOS)
- Quick Installation Guide
- User Manual

Optional Accessories:
- Extended connection cables (DB44 to DB9/DB25, 40 cm or 100 cm)
- Isolation and surge protection version (IPC‑B2002SI)
- Mounting hardware for PC/104 stack integration

Connectors:
- On‑board 10‑pin (5×2) header for external serial cable connection
- Standard DB9 male connectors via included cable

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### 6. Installation & Setup

Hardware Installation Steps:
1. Power off the host system and disconnect all power sources.
2. Remove the system enclosure to access the PC/104+ stack.
3. Insert the IPC‑B2002 card into an available PC/104+ slot, ensuring proper alignment of the bus connector.
4. Secure the card using standoffs or screws to maintain stack integrity.
5. Connect the provided 5×2 pin header cable to the card and attach the DB9 connectors to external devices.
6. Reassemble the system and power it on.

Software Installation:
- Insert the SUNIX driver CD and follow the OS‑specific installation wizard.
- For Windows systems, drivers are automatically detected and installed via the “Found New Hardware” wizard.
- For Linux, load the driver module (`sunix_matrix.ko`) using `modprobe` or `insmod`.
- Verify installation by checking the assigned COM ports (Windows) or `/dev/ttySMX*` devices (Linux).

Configuration:
- Port parameters (baud rate, parity, stop bits, flow control) can be configured through the operating system’s device manager or terminal software.
- COM port numbers can be reassigned to avoid conflicts.
- FIFO buffer size can be adjusted or disabled if required by specific applications.

Mounting Options:
- Stackable PC/104+ mounting with standard 90.17 × 95.89 mm footprint.
- Compatible with embedded chassis and industrial enclosures.

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### 7. Performance & Capabilities

Speed and Throughput:
- Supports serial communication speeds from 75 bps to 921.6 Kbps per port.
- 64‑byte FIFO buffers ensure efficient data handling and minimal latency.
- Optimized for real‑time control and low‑latency applications.

Capacity:
- Two independent serial channels per card.
- Up to four IPC‑B2002 cards can be installed in a single system, providing up to eight serial ports.

Efficiency:
- Single‑chip UART design minimizes CPU utilization.
- AHDC/CS™ technology ensures efficient RS‑485 bus arbitration.
- Low power consumption suitable for embedded and battery‑powered systems.

Limitations:
- Designed for RS‑422/485 communication only (no RS‑232 support).
- Maximum of four cards per system due to PC/104+ bus constraints.
- Operating temperature limited to 70°C (for extended temperature range, consult SUNIX industrial variants).

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### 8. Standards & Compliance

Certifications:
- CE (Conformité Européenne): Complies with European EMC and safety directives.
- FCC Class B: Meets U.S. Federal Communications Commission standards for electromagnetic interference.
- IEC 61000‑4‑5: Surge protection compliance (SI version).

Industry Standards:
- PC/104+ (PCI/104) bus specification compliant.
- RS‑422 and RS‑485 electrical interface standards (TIA/EIA‑422‑B, TIA/EIA‑485‑A).
- UART 16C750 compatibility ensures interoperability with standard serial communication software.

Environmental Compliance:
- RoHS‑compliant manufacturing process (lead‑free).
- Designed for industrial environments with high electrical noise immunity.

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### 9. Additional Information

Warranty:
5‑year limited hardware warranty covering manufacturing defects and component reliability.

Technical Support & Updates:
- Email: info@sunix‑ncci.com.tw
- Website: [www.sunix‑ncci.com.tw](http://www.sunix-ncci.com.tw)
SUNIX provides driver updates, firmware revisions, and technical documentation through its support portal.

Maintenance:
- Periodically inspect connectors and cables for wear or corrosion.
- Ensure proper grounding and shielding in high‑noise environments.
- Firmware and driver updates are available for improved compatibility and performance.

Troubleshooting Highlights:
- If the card is not detected, verify proper seating in the PC/104+ slot and check BIOS resource allocation.
- For communication errors, confirm correct baud rate and parity settings.
- Use SUNIX diagnostic utilities (`smxdump`, `snxterm`) under Linux to verify port operation.

Safety Guidelines:
- Avoid exposure to moisture, vibration, or magnetic fields.
- Do not disassemble or modify the card; this voids the warranty.
- Always power down the system before installation or removal.

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### Summary

The SUNIX IPC‑B2002 PC/104+ 2‑Port RS‑422/485 Professional Card is a robust, high‑performance serial communication solution for embedded and industrial systems. It combines advanced UART technology, automatic interface detection, and hardware‑level direction control to deliver reliable, high‑speed data transmission in compact PC/104+ environments. With comprehensive OS support, strong electrical protection, and a 5‑year warranty, the IPC‑B2002 is ideal for OEMs, system integrators, and industrial automation professionals seeking dependable serial connectivity in mission‑critical applications.