Comprehensive Product Summary – AP1T2-I-3 PCI Isolated 1-Port RS232/422/485 Dual Mirror Card (5V Only)

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### 1. Product Overview

Product Name: PCI Isolated 1-Port RS232/422/485 Dual Mirror Card
Model: AP1T2-I-3
Series: AP1T2 Advanced PCI Sharer Card Series
Article Number: AP1T2-I-3
Manufacturer: Rayon Technology Co., Ltd.
Manufacturer Address: 2F, No. 177, Chung Shan 2 Rd., Lu Chou City, Taipei Hsien, Taiwan
Contact Information:
- Tel: +886-2-82858362
- Fax: +886-2-82857065
- Email: rayon@ms1.hinet.net / info@rayontech.com.tw
- Websites: [www.computex.com.tw/rayon](http://www.computex.com.tw/rayon), [www.rayontech.com.tw](http://www.rayontech.com.tw)

Product Description:
The AP1T2-I-3 is a PCI-based isolated serial communication card designed to provide a single COM port that can be mirrored across two physical connectors, each configurable for RS232, RS422, or RS485 communication standards. It is engineered for industrial control, automation, and data acquisition systems requiring robust, isolated, and flexible serial connectivity. The card operates exclusively on a 5V PCI bus and supports a wide range of operating systems including Windows and Linux.

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### 2. Key Features

- Dual Mirror Port Design:
Shares one logical COM port across two physical connectors, enabling simultaneous mirrored communication for polling and acknowledgment (Poll & Ack) environments.

- Multi-Protocol Support:
Each connector can be independently configured via DIP switch to operate as RS232, RS422, or RS485, providing maximum flexibility for mixed serial communication environments.

- Hardware Isolation:
Electrical isolation between the PCI bus and serial interfaces enhances system reliability and protects against ground loops and electrical noise, critical for industrial applications.

- High Compatibility:
Fully compatible with 5V PCI bus slots and supports a wide range of operating systems including Windows 2000, XP, Vista, Windows 7/8, and Linux distributions.

- Plug & Play Configuration:
Automatic I/O, memory, and IRQ resource assignment by the PCI BIOS simplifies installation and eliminates manual configuration.

- High-Performance Serial Controller:
Utilizes the ASIX MCS9865 serial communication controller, providing advanced UART functionality and compatibility with 16950A standards for reliable high-speed data transfer.

- Flexible Baud Rate Range:
Supports baud rates from 50 to 115,200 bps, suitable for both legacy and modern serial communication requirements.

- Industrial-Grade Design:
Designed for continuous operation in industrial environments with wide temperature and humidity tolerance.

- Compact Form Factor:
Standard PCI bracket dimensions (100 × 97 mm) with optional low-profile bracket available upon request.

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### 3. Technical Specifications

Hardware Controller:
- Type: ASIX MCS9865 (16950A compatible UART)
- Function: Dual-channel serial controller supporting RS232/422/485

Bus Interface:
- PCI Bus: 32-bit, 33 MHz
- Voltage: 5V only (compatible with 5V PCI slots)
- Plug & Play: Automatic resource allocation via PCI BIOS

Ports & Connectors:
- Number of Logical Ports: 1 COM port
- Number of Physical Connectors: 2 mirrored ports
- Connector Type: DB9 male (x2)
- Interface Standards: RS232, RS422, RS485 (selectable per port via DIP switch)

Baud Rate:
- Configurable from 50 bps to 115,200 bps per port

Isolation:
- Electrical isolation between PCI bus and serial interface

Dimensions:
- Card Size: 100 mm (L) × 97 mm (H)
- Bracket: Standard PCI bracket (low-profile optional)

Environmental Conditions:
- Operating Temperature: 0°C to 55°C
- Storage Temperature: 0°C to 65°C
- Operating Humidity: 10% to 95% RH (non-condensing)
- Storage Humidity: 5% to 95% RH (non-condensing)

Power Requirements:
- Voltage: 5V DC (PCI bus powered)

Material & Build:
- PCB: Industrial-grade multilayer board
- Connectors: Nickel-plated DB9 male connectors
- Bracket: Stainless steel or zinc-coated steel

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### 4. Functionality

Operational Concept:
The AP1T2-I-3 functions as a PCI-based serial communication interface that provides one logical COM port mirrored across two physical connectors. Both connectors transmit and receive identical data streams, allowing simultaneous communication with two devices in a Poll & Ack configuration. This is particularly useful in industrial control systems where a master device must communicate with redundant or mirrored slave devices.

Interface Selection:
Each connector can be independently configured to operate as RS232, RS422, or RS485 using onboard DIP switches. This flexibility allows integration into diverse serial communication environments without requiring separate cards for each protocol.

Use Cases & Applications:
- Industrial automation and control systems
- Data acquisition and monitoring
- SCADA (Supervisory Control and Data Acquisition) systems
- Machine-to-machine (M2M) communication
- Embedded system integration
- Serial device networking and redundancy setups

Compatibility:
- Operating Systems: Windows 2000, XP, Vista, Windows 7/8, Linux, SCO UNIX, and other compatible OS environments.
- Hardware: Compatible with standard PCI slots supporting 5V signaling.

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### 5. Components & Accessories

Included Components:
- AP1T2-I-3 PCI card (standard bracket installed)
- User manual and installation guide
- Driver CD or downloadable driver package (depending on distribution)

Optional Accessories:
- Low-profile PCI bracket (for compact or rackmount systems)
- DB9-to-terminal block adapters (for field wiring)
- Shielded serial cables (RS232/422/485 compatible)

Connectors:
- Two DB9 male connectors for serial communication
- DIP switch block for interface mode selection (RS232/RS422/RS485)

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### 6. Installation & Setup

System Requirements:
- Available PCI slot (5V signaling)
- Compatible operating system (Windows or Linux)
- Administrative privileges for driver installation

Installation Steps:
1. Power off the host system and disconnect from power.
2. Insert the AP1T2-I-3 card into an available PCI slot.
3. Secure the card using the bracket screw.
4. Reconnect power and boot the system.
5. Allow the PCI BIOS to automatically assign I/O, memory, and IRQ resources.
6. Install the appropriate driver from the provided CD or manufacturer’s website.
7. Configure the DIP switches to select the desired interface mode (RS232, RS422, or RS485) for each connector.
8. Connect serial devices using DB9 cables.

Mounting Options:
- Standard PCI bracket for desktop or industrial PC chassis
- Optional low-profile bracket for compact enclosures

Configuration:
- Interface selection via DIP switch
- Baud rate and communication parameters configured through software or device manager

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### 7. Performance & Capabilities

Data Transmission:
- Supports full-duplex communication for RS232 and RS422 modes
- Supports half-duplex operation for RS485 mode
- Reliable data integrity ensured by 16950A-compatible UART with deep FIFO buffers

Speed & Throughput:
- Baud rate range: 50 to 115,200 bps
- Efficient interrupt handling via PCI BIOS-assigned IRQs

Capacity:
- One logical COM port mirrored across two connectors
- Suitable for simultaneous dual-device communication in mirrored mode

Efficiency:
- Low CPU overhead due to hardware-based UART processing
- Stable performance under continuous industrial workloads

Limitations:
- Operates only on 5V PCI slots (not compatible with 3.3V-only PCI or PCIe slots)
- Shared COM port limits independent communication on both connectors (mirrored data only)

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### 8. Standards & Compliance

Electrical & Interface Standards:
- RS232 (EIA/TIA-232)
- RS422 (EIA/TIA-422)
- RS485 (EIA/TIA-485)
- PCI Local Bus Specification (Revision 2.2 or later)

Regulatory Compliance:
- CE compliant (Electromagnetic Compatibility)
- FCC Class B compliant (for digital devices)
- RoHS compliant (Restriction of Hazardous Substances)

Industry Standards:
- UART 16950A compatibility ensures interoperability with standard serial communication software and hardware.
- Designed for industrial-grade reliability and long-term operation.

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty (typically 1 year, extendable depending on distributor policy).

Technical Support:
- Provided by Rayon Technology Co., Ltd. via email and online resources.
- Driver updates and documentation available on the official website.

Maintenance:
- No regular maintenance required beyond standard dust cleaning and connector inspection.
- Firmware and driver updates recommended periodically for optimal performance.

Product Line Compatibility & Upgrades:
The AP1T2-I-3 belongs to Rayon’s AP-series of PCI communication cards, offering a range of models for different serial configurations:
- AP102-I: Two ground-isolated RS232 ports
- AP132-I: Two ground-isolated RS422/RS485 ports
- AP301-I: One RS232 and one ground-isolated RS232/422/485 port
- APLOG301-I: RS232 to ground-isolated RS232/422/485 converter via dual serial ports
- AP112-I: Two ground-isolated RS232/RS422/RS485 ports
- AP132: Two RS422/RS485 ports (non-isolated)
- APCON301-I: RS232 to ground-isolated RS232/RS422/RS485 ports

Support & Updates:
- Driver and software updates available for Windows and Linux platforms.
- Technical documentation, installation guides, and FAQs accessible through Rayon’s official website.

Trademark Notice:
All product names and trademarks mentioned are the property of their respective owners.

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### Summary

The Rayon AP1T2-I-3 PCI Isolated 1-Port RS232/422/485 Dual Mirror Card is a robust, industrial-grade communication interface designed for systems requiring mirrored serial communication across multiple devices. Its flexible configuration options, isolation features, and compatibility with multiple serial standards make it ideal for industrial automation, control systems, and data acquisition applications. With support for a wide range of operating systems, automatic PCI resource management, and a compact design, the AP1T2-I-3 delivers reliable and efficient serial connectivity for demanding environments.

Key Advantages:
- Dual mirrored ports for redundant communication
- Configurable RS232/RS422/RS485 interfaces
- Industrial-grade isolation and durability
- Broad OS compatibility and plug & play installation
- Compact PCI form factor with optional low-profile bracket

This card exemplifies Rayon Technology’s commitment to providing high-quality, flexible, and reliable communication solutions for industrial and embedded applications.