Pi40952 3x2b Driver Link

The PI40952-3X2B is a common circuit board identifier for PCI Express (PCIe) expansion cards that provide legacy communication ports, specifically Serial (RS-232) and sometimes Parallel (LPT) ports.

These cards are typically used to connect vintage or industrial hardware—like scanners, CNC machines, or receipt printers—to modern computers that lack built-in serial ports. 1. Chipset Identification

To find the correct driver, you first need to identify the chipset on your specific card. The "PI40952-3X2B" label is often used by multiple manufacturers (like Delock, Manhattan, or STLab) who may use different internal chips.

Oxford (PLX) Chipset: Often found in the Delock 89220 model. It uses the OXPCIe952 chip and supports data rates up to 230.4 Kbps.

WCH (Nanjing Qinheng) Chipset: Many cards with this board ID use WCH chips (like the CH382 or CH35x). These are very common in generic PCIe-to-Serial/Parallel cards. 2. Driver Download Sources

Depending on your chipset, use the official manufacturer support pages:

For Oxford/PLX Cards: Visit the Delock Service & Support page and search for your specific item number (e.g., 89220).

For WCH Cards: Download the CH38XDRV installation package from Nanjing Qinheng Microelectronics. This package supports Windows 11/10/8.1 and Linux. 3. Installation Guide

If the card is listed as an "Unknown Device" or "PCI Serial Port" in Windows Device Manager: Right-click the device and select Properties. Go to the Details tab and select Hardware IDs. Look for the Vendor ID (VEN) and Device ID (DEV). VEN_1415: This is an Oxford/PLX chip. VEN_1C00: This is a WCH chip.

Once identified, run the installer from the manufacturer links above. Technical Specifications Delock PCI Express Card to 2 x Serial

The PI40952-3X2B isn't a single device, but a versatile PCI-Express expansion card used by various brands like DeLOCK, Manhattan, and EXONE.

Because it is a hardware component rather than a finished consumer product, finding the "driver" often feels like a treasure hunt. Here is the story of how to get yours working. 🛠️ The Identity of the Card

This card usually serves one of two purposes depending on the specific model you have: A Parallel Port (LPT): Used for older printers.

Dual Serial Ports (RS-232): Used for industrial equipment or specialty hardware.

The "brain" of this card is almost always the Oxford Semiconductor OXPCIe952 chip. 🔍 How to Find Your Driver

Since different companies rebranded the same board, your best bet is to look for drivers based on the chipset, not the model number. 1. The Direct Source

The most reliable drivers are for the Oxford OXPCIe952. Many users have success with:

Manufacturer Support: Checking the DeLOCK Support Page for model 89219, which uses this exact board. pi40952 3x2b driver

Windows Update: If you plug the card in, Windows 10 and 11 often find the "Oxford Semiconductor" driver automatically. 2. The Manual Search

If Windows doesn't see it, you can find the exact match using Hardware IDs: Right-click the Start button and open Device Manager.

Look for an "Unknown Device" or "PCI Communications Controller" with a yellow exclamation mark. Right-click it -> Properties -> Details tab. Select Hardware Ids from the dropdown.

Look for a string like VEN_1415&DEV_C158 (the ID for the OXPCIe952 chip). 💡 Pro-Tip for Legacy Users

If you are trying to use this on FreeDOS or older specialized systems, be aware that this card often operates in "Native" mode (mapped to memory) rather than "Legacy" mode (mapped to I/O). If your old software can't "see" the port, it might be because the software expects a specific I/O address (like 378h) that these modern PCIe cards don't use by default. To help you get the exact right file, could you tell me:

What Operating System are you using (Windows 10, XP, Linux)? Are you trying to connect a printer or a serial device? Do you see any error codes in your Device Manager? PI40952-3X2B PCI-Express Printer Port Adapter Card

The PI40952-3X2B is a PCI Express (PCIe) expansion card, typically branded under manufacturers like Exone or Manhattan, designed to add legacy connectivity ports to modern desktop computers. 1. Hardware Overview

The card is primarily used to provide additional serial or parallel communication ports via a single PCIe x1 slot.

Functionality: Often serves as a Dual Serial (RS-232) Port Adapter or a Parallel (LPT) Port Adapter.

Form Factor: Standard PCI Express x1 interface, frequently supplied with low-profile brackets for use in small form factor (SFF) PCs.

Chipset: Most versions of this hardware utilize the Oxford (PLX/Broadcom) or MCS (MosChip) serial/parallel controller chipsets, such as the OX16PCI952. 2. Driver Specifications

The driver for the PI40952-3X2B is essential for the operating system to recognize the UART (Universal Asynchronous Receiver-Transmitter) and bridge functions of the card. Compatible OS

Windows XP, Vista, 7, 8, 8.1, 10, and 11; various Windows Server editions; Linux Kernel 4.15+ Driver Version

Commonly refers to version 3.18.1.0 for newer Windows builds Architecture Supports both 32-bit (x86) and 64-bit (x64) systems Installation File

Often distributed as a ZIP containing .inf files or an automated .exe installer (e.g., CH35XDRV.EXE or Oxford-specific installers) 3. Installation & Troubleshooting

Because this card is often sold as a "white label" or generic component, finding drivers can be difficult if the original CD is missing. Delock PCI Express Card to 2 x Serial RS-232 + 1 x Parallel

The PI40952-3X2B is a PCI Express expansion card typically used to add legacy RS-232 serial ports (and sometimes a parallel port) to modern computers. It is commonly manufactured or distributed by brands like DeLOCK. 🛠️ Key Specifications Interface: PCI Express x1. Ports: Usually 2 x Serial RS-232 (DB9 male). The PI40952-3X2B is a common circuit board identifier

Chipset: Often uses an Oxford or WCH chipset (e.g., WCH382L).

Data Rate: Up to 230.4 Kbps for serial and 1.5 Mbps for parallel.

Form Factor: Includes Low Profile brackets for small-form-factor PCs. ⭐ User Review Summary

Users generally find this card to be a "plug-and-play" solution for connecting older hardware like barcode scanners, industrial controllers, or older printers to new systems. Pros:

High Compatibility: Works with Windows versions from XP/7 up to Windows 11.

Reliable Chipset: Oxford chipsets are widely recognized for stable driver support in industrial settings.

Compact: The low-profile design makes it versatile for mini-PCs. Cons:

Manual Setup: Sometimes requires specific manual driver installation from a CD or manufacturer website if Windows doesn't auto-detect the older chipset.

Legacy Only: Primarily useful for older equipment; doesn't offer modern high-speed data benefits. 💾 Driver & Support

Latest Drivers: Microsoft WHQL Certified versions (v1.6.2025.05) are available as of early 2026 for Windows 11 and Server 2022. Linux: Supported in Kernel 4.15 or above.

💡 Pro Tip: If your card has a red stripe on the ribbon cable, ensure it faces the card bracket during installation for proper pin alignment. Delock PCI Express Card to 2 x Serial

Description. The PCI Express card by Delock expands a PC by two external serial ports. Different devices such as scanner, printer, Delock PCI Express Card to 1 x Parallel IEEE1284

The PI40952-3X2B is a hardware component model number belonging to a line of multi-port input/output (I/O) expansion cards. This specific model is primarily known as a PCI Express Dual Serial Port Adapter Card or, depending on the specific board revision, an LPT/Parallel Port Adapter Card. These cards allow users to add legacy DB9 RS232 serial COM ports or DB25 parallel printer ports to a desktop computer via the PCIe expansion slots on the motherboard.

The board is powered by the highly popular and reliable Oxford OXPCIe952 chipset. If your operating system is unable to recognize this card natively, this is the core chipset driver you will need to seek out. 🛠️ How to Handle a Missing Driver Delock PCI Express Card to 2 x Serial

Description. The PCI Express card by Delock expands a PC by two external serial ports. Different devices such as scanner, printer,

The PI40952-3X2B is a designation found on PCI Express (PCIe) expansion cards, most commonly used for adding serial (RS-232) or parallel (LPT) ports to a computer. These cards are sold under various brand names, including Delock, Exone, and Manhattan. Driver & Chipset Information

The primary chipset for these cards is the Oxford OXPCIe952. void loop() motorForward()

Operating Systems: Drivers typically support Windows 7, 8.1, and 10 (both 32-bit and 64-bit).

Finding Drivers: If you do not have the original CD, you can often find drivers on the manufacturer's website. For example, Messoanuovo provides manual and driver download links for this specific model.

Hardware IDs: In some configurations, the serial ports may appear with device IDs 0xC158 and 0xC159. Key Features

These cards are designed to add legacy connectivity to modern systems that lack native serial or parallel headers.

Port Configuration: Available as either a dual serial port (RS-232 DB9) card or a single parallel port (LPT) card.

Form Factor: Often includes low-profile brackets, making them compatible with Mini-PCs and small form factor (SFF) desktops. Performance: Data Transfer Rate: Supports speeds up to 230.4 Kbps.

UART Compatibility: Compatible with the 16C950 UART standard.

FIFO: Features a 128-byte FIFO buffer to manage data flow and reduce CPU load.

Operational Modes: Some versions support "Native" mode, which maps ports into memory space for faster CPU access compared to traditional I/O space. Delock PCI Express Card to 2 x Serial

Description. The PCI Express card by Delock expands a PC by two external serial ports. Different devices such as scanner, printer, PI40952-3X2B PCI-Express Printer Port Adapter Card

7. Interrupt Handling and Events

ISR responsibilities: acknowledge hardware interrupt, capture minimal state (which channels triggered), and queue a deferred worker.
Deferred work: read detailed registers, call user callbacks, update state, and clear sticky flags.
Debounce and rate-limit rapid events in software to prevent flooding.

2. Automated Test Equipment (ATE)

Why: Controlling three independent solenoids or pneumatic valves in a test fixture.
Benefit: Binary states (off, low, medium, high flow) allow granularity without complex DACs.

Example 1: Basic DC Motor Control (Channel A)

// Define pins for PI40952 Channel A
#define A1 2  // IA1 (Bit 1)
#define A2 3  // IA2 (Bit 2)
#define EN  4  // Master enable
void setup() 
pinMode(A1, OUTPUT);
pinMode(A2, OUTPUT);
pinMode(EN, OUTPUT);
digitalWrite(EN, HIGH); // Enable driver

void motorStop() 
digitalWrite(A1, LOW);
digitalWrite(A2, LOW); // Coast mode

void motorForward() 
digitalWrite(A1, LOW);
digitalWrite(A2, HIGH);

void motorReverse() 
digitalWrite(A1, HIGH);
digitalWrite(A2, LOW);

void motorBrake() 
digitalWrite(A1, HIGH);
digitalWrite(A2, HIGH);

void loop() 
motorForward();
delay(2000);
motorBrake();
delay(1000);
motorReverse();
delay(2000);
motorStop();
delay(1000);