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

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### 1. Product Overview

Product Name: PCard‑E3041L‑SI‑D4
Article Number: PCard‑E3041L‑SI‑D4
Series: PCard‑Ex041L‑SI‑D4 Series (Industrial PCI Express Serial Communication Cards)
Manufacturer: ORing Industrial Networking Corp.
Model Version: V1.3
Product Type: PCI Express x1 Low‑Profile Serial Communication Card
Description: Industrial‑grade, low‑profile PCIe card providing four isolated and surge‑protected serial communication ports supporting RS‑232, RS‑422, and RS‑485 interfaces. Designed for rugged environments and mission‑critical applications such as POS, ATM, and KIOSK systems.

The PCard‑E3041L‑SI‑D4 is part of ORing’s modular PCard family, which includes models E1041L, E2041L, and E3041L in both isolated (‑I) and surge‑isolated (‑SI) variants. The “‑SI” suffix denotes 6 kV surge protection and 3 kV isolation per port.

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### 2. Key Features

- PCI Express x1 Compliant: Fully compatible with PCI Express x1 interface, ensuring high‑speed data transfer and broad system compatibility.
- Multi‑Protocol Serial Support: Provides four independent serial ports configurable for RS‑232, RS‑422, or RS‑485 (2‑wire or 4‑wire) operation.
- High Electrical Protection:
- 3 kV isolation between ports and system bus.
- 6 kV surge protection on signal lines (‑SI models).
- ESD protection: 15 kV (air) / 8 kV (contact).
- Wide Baud Rate Range: Supports baud rates from 50 bps to 921.6 kbps, suitable for a wide range of industrial serial devices.
- 128‑Byte FIFO Buffer: Ensures stable and efficient data transmission with minimal CPU load.
- Flow Control Options: Hardware (RTS/CTS) and software (Xon/Xoff) flow control supported.
- Low‑Profile Form Factor: Compact 67.2 × 136.8 mm design ideal for small‑form‑factor PCs and embedded systems.
- LED Indicators:
- Green LED for TX (transmit activity).
- Amber LED for RX (receive activity).
- Rugged Industrial Design: Wide operating temperature range (‑40 °C to +75 °C) and humidity tolerance (5 %–95 % non‑condensing).
- Power Efficiency: Operates on 3.3 V DC, consuming approximately 1,150 mA.
- Comprehensive Certification: Meets EMC, EMI, and EMS standards for industrial environments.
- Long‑Term Reliability: Backed by a 5‑year manufacturer warranty.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Bus Interface | PCI Express x1 |
| Number of Ports | 4 independent serial ports |
| Connector Type | DB44 male (on card) with optional DB44‑to‑DB9×4 cable |
| Supported Interfaces | RS‑232 / RS‑422 / RS‑485 (2‑wire or 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 |
| Isolation Protection | 3 kV (port‑to‑system) |
| Surge Protection | 6 kV (signal lines, SI model only) |
| ESD Protection | 15 kV (air), 8 kV (contact) |
| Power Requirement | 3.3 V DC ± 5 %, 1,150 mA |
| Dimensions | 67.2 mm × 136.8 mm (2.65 × 5.39 in.) |
| Weight | Approx. 90 g (card only) |
| Operating Temperature | ‑40 °C to +75 °C (‑40 °F to +167 °F) |
| Storage Temperature | ‑40 °C to +85 °C (‑40 °F to +185 °F) |
| Operating Humidity | 5 % – 95 % RH, non‑condensing |
| LED Indicators | TX (green), RX (amber) |
| Warranty | 5 years |

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### 4. Functionality

The PCard‑E3041L‑SI‑D4 functions as a four‑port serial communication interface card for industrial PCs and embedded systems. Installed in a PCI Express slot, it provides hardware‑isolated and surge‑protected serial connectivity for legacy and modern serial devices.

Operation Modes:
- RS‑232: Standard asynchronous serial communication supporting full modem control signals (TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND).
- RS‑422: Differential signaling for long‑distance, high‑speed communication (TX+, TX‑, RX+, RX‑, GND).
- RS‑485 (2‑wire / 4‑wire): Multi‑drop communication for industrial networks (D+, D‑, GND or TX+/‑, RX+/‑, GND).

Use Cases and Applications:
- 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 dispensers, and payment modules.
- Industrial Automation: Linking PLCs, sensors, and controllers in harsh environments.
- Embedded Systems: Providing serial expansion for compact industrial PCs.

Compatibility:
- Compatible with standard PCI Express x1, x4, x8, and x16 slots.
- Supports major operating systems (Windows, Linux, and other OSs with PCIe serial driver support).
- Fully interoperable with ORing’s optional DB44‑to‑DB9 cable assemblies and accessories.

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### 5. Components & Accessories

Included in Package:
- 1 × PCard‑E3041L‑SI‑D4 PCIe card
- 1 × Quick Installation Guide (QIG)
- 1 × Standard profile bracket (low‑profile bracket pre‑installed)

Optional Accessories:
- CY‑AS‑WL0‑012 Cable: DB44 male to four DB9 male connectors, 50 cm length.
- Converts the single DB44 port into four individual DB9 serial connectors.
- Model code: 9_CYASWL0012_XXB0.

Connectors and Pin Assignments (DB44):

| 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 | – | – | – |

DIP Switch Configuration (for RS‑485):
- PIN 1 / PIN 2: Pull‑up / Pull‑down resistor enable.
- PIN 3: Terminator resistor enable.

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### 6. Installation & Setup

System Requirements:
- Available PCI Express x1 (or higher) slot.
- 3.3 V DC power supply from the motherboard.
- Compatible operating system with serial port driver support.

Installation Steps:
1. Power off the host PC and disconnect it from the power source.
2. Remove the system cover and locate an available PCIe slot.
3. Insert the PCard‑E3041L‑SI‑D4 firmly into the slot and secure it with the bracket screw.
4. Attach the DB44 cable (if required) to the card’s connector.
5. Replace the system cover and power on the PC.
6. Install the appropriate driver software if required by the operating system.
7. Configure serial port parameters (baud rate, parity, stop bits, etc.) via the OS or application software.

Mounting Options:
- Supplied with both low‑profile and standard brackets for flexible installation in compact or full‑height chassis.

Configuration:
- DIP switches on the card allow selection of RS‑485 termination and biasing.
- Software configuration for port mode (RS‑232/422/485) is supported through driver utilities.

Safety Considerations:
- Ensure adequate airflow within the chassis to maintain safe operating temperatures.
- Avoid mechanical stress or uneven loading when installed in rackmount systems.
- Verify that the host system’s power supply can accommodate the additional 1.15 A @ 3.3 V DC load.

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### 7. Performance & Capabilities

Data Throughput:
- Supports up to 921.6 kbps per port, enabling high‑speed serial communication for demanding industrial applications.

Isolation & Protection:
- 3 kV isolation prevents ground loops and protects host systems from electrical transients.
- 6 kV surge protection (‑SI model) safeguards against lightning strikes and power surges on signal lines.
- ESD protection up to 15 kV (air) and 8 kV (contact) ensures long‑term reliability in electrically noisy environments.

Efficiency:
- Low‑power design (3.3 V DC operation) minimizes heat generation and power consumption.
- 128‑byte FIFO buffers reduce CPU overhead and prevent data loss during high‑speed transfers.

Limitations:
- Maximum baud rate limited to 921.6 kbps.
- Requires external cable (DB44‑to‑DB9) for individual port access.
- RS‑485 termination and biasing must be configured manually via DIP switches.

Reliability:
- Designed for continuous 24/7 operation in industrial environments.
- Wide temperature and humidity tolerance ensures stable performance in harsh conditions.

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### 8. Standards & Compliance

Electromagnetic Compatibility (EMC):
- EN 55032/24 – Industrial, scientific, and medical (ISM) equipment emissions and immunity.

Electromagnetic Interference (EMI):
- CISPR 22, FCC Part 15 B Class B – Compliance with international emission standards for computing devices.

Electromagnetic Susceptibility (EMS):
- 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 (‑SI 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 operation in extended industrial temperature ranges.
- Manufactured in compliance with RoHS environmental directives (lead‑free construction).

Industry Standards:
- PCI Express Base Specification v1.1 compliant.
- RS‑232 (EIA/TIA‑232‑F), RS‑422 (EIA/TIA‑422‑B), and RS‑485 (EIA/TIA‑485‑A) compliant signaling.

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### 9. Additional Information

Warranty:
- 5‑year limited hardware warranty covering manufacturing defects and component failures under normal operating conditions.

Technical Support:
- ORing Industrial Networking Corp. provides global technical support, firmware updates, and driver downloads.
- Website: [www.oringnet.com](https://www.oringnet.com)
- Email: support@oringnet.com
- Telephone: +886‑2‑2218‑1066
- Fax: +886‑2‑2218‑1014

Maintenance:
- No periodic maintenance required beyond standard system cleaning.
- Ensure connectors remain free of dust and corrosion.
- Firmware and driver updates available through ORing’s support portal.

Product Lifecycle & Updates:
- Version 1.3 hardware revision includes enhanced surge protection circuitry and improved EMI shielding.
- Backward compatible with earlier PCard‑Ex041L series models.

Ordering Information:
- PCard‑E3041L‑SI‑D4: Industrial 4‑Port RS‑232/422/485 PCI Express Card, Low Profile, 6 kV Surge Protection, 3 kV Isolation.
- Optional Cable: CY‑AS‑WL0‑012 (DB44 M → 4 × DB9 M, 50 cm).

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### Summary

The ORing PCard‑E3041L‑SI‑D4 is a robust, industrial‑grade PCI Express serial communication card engineered for high reliability and electrical resilience. It provides four configurable serial ports supporting RS‑232, RS‑422, and RS‑485 protocols, each protected by 3 kV isolation and 6 kV surge suppression. With its low‑profile design, wide temperature tolerance, and compliance with stringent EMC/EMI standards, the card is ideally suited for mission‑critical applications in automation, retail, and embedded computing environments.

Its combination of high‑speed performance (up to 921.6 kbps), flexible configuration, and comprehensive protection features ensures dependable operation even in electrically harsh industrial settings. Backed by ORing’s 5‑year warranty and global support network, the PCard‑E3041L‑SI‑D4 delivers long‑term value and reliability for professional system integrators and industrial users alike.