Comprehensive Product Summary – ORing PCard‑E3041L‑S‑D4 Industrial PCI Express Serial Communication Card

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### 1. Product Overview

Product Name: PCard‑E3041L‑S‑D4
Model: PCard‑E3041L‑S‑D4
Series: PCard‑Ex041L‑D4 Series (Industrial PCI Express Serial Communication Cards)
Article Number: PCard‑E3041L‑S‑D4
Manufacturer: ORing Industrial Networking Corp.
Product Type: 4‑Port PCI Express Serial Communication Card (RS‑232/422/485)
Form Factor: Low‑Profile PCI Express x1 Card
Version: Hardware/Documentation Version 1.3

The ORing PCard‑E3041L‑S‑D4 is an industrial‑grade, low‑profile PCI Express (PCIe) communication card designed to provide four independent serial ports supporting RS‑232, RS‑422, and RS‑485 interfaces. It is engineered for rugged environments and mission‑critical applications such as POS terminals, ATMs, kiosks, and industrial automation systems. The “‑S” suffix designates the inclusion of 6 kV surge protection, ensuring reliable operation in electrically noisy or high‑transient environments.

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### 2. Key Features

- PCI Express x1 Compliant: Fully compatible with PCI Express x1 slots, supporting plug‑and‑play installation in modern PCs and industrial computers.
- Multi‑Protocol Serial Support: Each of the four ports can be configured for RS‑232, RS‑422, or RS‑485 (2‑wire or 4‑wire) communication modes.
- High Surge and ESD Protection:
- Surge protection up to 6 kV (signal lines, –S model only).
- ESD protection up to 15 kV air discharge and 8 kV contact discharge.
- Wide Baud Rate Range: Supports serial communication speeds from 50 bps to 921.6 kbps, suitable for both legacy and high‑speed serial devices.
- 128‑Byte FIFO Buffer: Reduces CPU overhead and ensures stable data transmission under heavy load.
- Hardware and Software Flow Control: Supports RTS/CTS and Xon/Xoff flow control mechanisms for reliable data exchange.
- Low‑Profile Design: Compact PCB (67.2 × 104.8 mm) suitable for small‑form‑factor PCs and embedded systems.
- LED Indicators:
- TX (Green): Indicates data transmission.
- RX (Amber): Indicates data reception.
- Industrial Temperature Range: Operates reliably from –40 °C to +75 °C, with storage capability up to +85 °C.
- Power Efficiency: Operates on 3.3 V DC, consuming approximately 835 mA.
- Comprehensive Modem Control Signals: Full RS‑232 signal set (TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND) for compatibility with a wide range of serial peripherals.
- Extended Warranty: Backed by a 5‑year manufacturer warranty.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | PCI Express x1 |
| Ports | 4 independent serial ports |
| Connector Type | 1 × DB44 female D‑sub connector |
| Supported Interfaces | RS‑232 / RS‑422 / RS‑485 (2‑wire and 4‑wire) |
| Baud Rate | 50 bps – 921.6 kbps |
| Data Bits | 5, 6, 7, 8 |
| Parity | Odd, even, none, mark, space |
| Stop Bits | 1, 1.5, 2 |
| Flow Control | RTS/CTS (hardware), Xon/Xoff (software) |
| FIFO Buffer | 128 bytes per port |
| Power Requirement | 3.3 V DC ± 5%, 835 mA |
| Dimensions | 67.2 mm (W) × 104.8 mm (L) (2.65 × 4.13 in.) |
| Weight | Approx. 60 g (typical) |
| Operating Temperature | –40 °C to +75 °C (–40 °F to +167 °F) |
| Storage Temperature | –40 °C to +85 °C (–40 °F to +185 °F) |
| Humidity | 5 % – 95 % RH, non‑condensing |
| Surge Protection | 6 kV (signal lines, –S model only) |
| ESD Protection | 15 kV (air), 8 kV (contact) |
| EMC/EMI Compliance | EN 55032/24, CISPR 22, FCC Part 15 B Class B |
| Mechanical Form Factor | Low‑profile PCIe card |
| Warranty | 5 years |

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### 4. Functionality

The PCard‑E3041L‑S‑D4 functions as a high‑performance serial communication interface card for systems requiring multiple serial ports. It connects to a host computer via the PCI Express bus and provides four configurable serial channels through a single DB44 connector.

Each port can operate independently in RS‑232, RS‑422, or RS‑485 mode, selectable via configuration utilities or DIP switch settings. The card supports both 2‑wire and 4‑wire RS‑485 communication, enabling full‑duplex or half‑duplex operation.

Typical Use Cases:
- Point‑of‑Sale (POS) Systems: Connecting barcode scanners, receipt printers, and cash drawers.
- Automated Teller Machines (ATMs): Reliable communication with card readers, sensors, and control modules.
- Kiosk Terminals: Integration with touchscreens, ticket printers, and payment modules.
- Industrial Automation: Linking PLCs, sensors, and controllers in manufacturing environments.
- Data Acquisition Systems: Collecting and transmitting sensor data in real‑time.

Compatibility:
The card is compatible with standard operating systems supporting PCI Express serial interfaces, including Windows, Linux, and other industrial OS platforms. It can be installed in any system with an available PCIe x1 slot, and it is backward‑compatible with x4, x8, and x16 slots.

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### 5. Components & Accessories

Included in Package:
1. PCard‑E3041L‑S‑D4 PCIe Card (or variant PCard‑E3041L‑D4 without surge protection)
2. Quick Installation Guide (QIG)
3. Standard Profile Bracket (for full‑height chassis installation)

Optional Accessories:
- Cable Assembly:
- Model: CY‑AS‑WL0‑012
- Description: DB44 Male to 4 × DB9 Male cable, 50 cm length
- Function: Breaks out the single DB44 connector into four individual DB9 connectors for direct connection to serial devices.

Connectors and Pin Assignments (PCard‑E3041L‑S‑D4):

| Pin | RS‑232 | RS‑422 | 4‑Wire RS‑485 | 2‑Wire RS‑485 |
|----------|-------------|-------------|--------------------|-------------------|
| 1 | DCD | TX– | TX– | – |
| 2 | RXD | TX+ | TX+ | – |
| 3 | TXD | RX+ | RX+ | D+ |
| 4 | DTR | RX– | RX– | D– |
| 5 | GND | GND | GND | GND |
| 6 | DSR | – | – | – |
| 7 | RTS | – | – | – |
| 8 | CTS | – | – | – |

LED Indicators:
- TX (Green): Active when data is being transmitted.
- RX (Amber): Active when data is being received.

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### 6. Installation & Setup

System Requirements:
- Available PCI Express x1 slot (compatible with x4/x8/x16 slots).
- Host system supporting 3.3 V DC PCIe signaling.
- Operating system with appropriate driver support (Windows/Linux).

Installation Steps:
1. Power Down the System: Ensure the host PC is turned off and unplugged.
2. Insert the Card: Carefully insert the PCard‑E3041L‑S‑D4 into an available PCIe slot.
3. Secure the Bracket: Use the provided low‑profile or standard bracket as required.
4. Connect Serial Devices: Attach the DB44‑to‑DB9 breakout cable (optional) to connect up to four serial devices.
5. Power On and Install Drivers: Boot the system and install the appropriate drivers supplied by ORing or the OS.
6. Configure Ports: Use the system’s device manager or ORing configuration utility to set baud rate, parity, stop bits, and communication mode (RS‑232/422/485).

DIP Switch Configuration (for RS‑485 mode):
- PIN 1 / PIN 2: Pull‑up / Pull‑down resistors (Hi/Lo).
- PIN 3: Terminator enable/disable.

Safety Considerations:
- Ensure adequate airflow within the chassis to maintain safe operating temperatures.
- Avoid mechanical stress or uneven loading when installed in rack systems.
- Verify that the power supply and circuit protection meet the card’s current requirements.

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### 7. Performance & Capabilities

Data Throughput:
Each port supports up to 921.6 kbps, enabling high‑speed communication with minimal latency. The 128‑byte FIFO buffer per port ensures smooth data flow even under heavy system load or multitasking conditions.

Electrical Protection:
The –S model integrates 6 kV surge protection on signal lines, safeguarding connected equipment from transient voltage spikes. Combined with 15 kV air and 8 kV contact ESD protection, the card is suitable for harsh industrial environments prone to electrical interference.

Power Efficiency:
Operating solely on 3.3 V DC, the card consumes approximately 835 mA, minimizing power draw while maintaining stable performance.

Environmental Robustness:
Designed for extended temperature operation (–40 °C to +75 °C) and high humidity tolerance (up to 95 % RH non‑condensing), the card is ideal for field‑deployed or enclosed systems.

Limitations:
- The card does not provide galvanic isolation (use “‑I” variants for isolation).
- Surge protection is available only on the “‑S” model.
- Requires external breakout cable for individual DB9 connections.

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### 8. Standards & Compliance

The PCard‑E3041L‑S‑D4 complies with international electromagnetic and safety standards, ensuring reliable operation and regulatory acceptance in industrial and commercial environments.

EMC / EMI Compliance:
- EN 55032 / EN 55024 – Electromagnetic compatibility for information technology equipment.
- CISPR 22 – Limits and methods of measurement of radio disturbance characteristics.
- FCC Part 15 B Class B – U.S. Federal Communications Commission standard for unintentional radiators.

EMS (Electromagnetic Susceptibility) Tests:
- IEC 61000‑4‑2 (ESD): Contact 8 kV, Air 15 kV.
- IEC 61000‑4‑3 (RS): 80 MHz – 1 GHz, 3 V/m.
- IEC 61000‑4‑4 (EFT): Power 1 kV, Signal 0.5 kV.
- IEC 61000‑4‑5 (Surge): Power 2 kV, Signal 6 kV (–S model only).
- IEC 61000‑4‑6 (CS): 150 kHz – 80 MHz, 3 V/m.
- IEC 61000‑4‑8 (PFMF): Power frequency magnetic field immunity.

Environmental Compliance:
Designed for industrial environments with wide temperature and humidity ranges.

Quality and Reliability:
Manufactured under ORing’s industrial‑grade quality control standards, ensuring long‑term reliability and consistent performance.

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### 9. Additional Information

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

Maintenance:
- Periodically inspect connectors and cables for wear or corrosion.
- Ensure proper grounding and shielding in electrically noisy environments.
- Firmware or driver updates can be obtained from ORing’s official website.

Support and Contact Information:
- Manufacturer: ORing Industrial Networking Corp.
- Website: [www.oringnet.com](https://www.oringnet.com)
- Email: support@oringnet.com
- Telephone: +886‑2‑2218‑1066
- Fax: +886‑2‑2218‑1014

Ordering Information:
- PCard‑E3041L‑S‑D4: Industrial 4‑Port RS‑232/422/485 PCI Express Card, Low Profile, with 6 kV Surge Protection.
- PCard‑E3041L‑D4: Industrial 4‑Port RS‑232/422/485 PCI Express Card, Low Profile, without Surge Protection.

Optional Cable:
- CY‑AS‑WL0‑012: DB44 Male to 4 × DB9 Male, 50 cm cable (DB44M → DB9M × 4).

Environmental and Safety Notes:
- Ensure installation in environments compatible with the specified maximum ambient temperature.
- Maintain adequate airflow to prevent overheating.
- Avoid overloading the host system’s power circuits.

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### Summary

The ORing PCard‑E3041L‑S‑D4 is a robust, industrial‑grade PCI Express serial communication card offering four configurable RS‑232/422/485 ports through a single DB44 connector. Its low‑profile design, wide operating temperature range, and advanced electrical protection make it ideal for space‑constrained and harsh industrial environments. With support for high‑speed data transfer up to 921.6 kbps, comprehensive flow control, and 6 kV surge protection, it ensures reliable and interference‑free communication for mission‑critical applications.

Backed by ORing’s 5‑year warranty and compliance with international EMC and safety standards, the PCard‑E3041L‑S‑D4 delivers long‑term stability, flexibility, and performance for industrial automation, retail, and embedded computing systems.