High-Performance PCI to 2 Serial Card with 16C950 FIFO W-952-2S

Product Overview

The W-952-2S is a PCI to 2 serial card designed to add two serial communication channels to a computer equipped with a compatible PCI expansion slot. Based on advanced 16C950 UART functionality, the card combines broad UART software compatibility, deep transmit and receive buffers, flexible baud-rate control, and automated flow-control functions.

For system integrators, industrial computer builders, equipment manufacturers, distributors, and maintenance teams, the card provides a practical way to retain or expand serial connectivity in PCI-based systems. It can support communication between a host computer and serial devices used in industrial control, data acquisition, retail equipment, laboratory instruments, access-control systems, and legacy hardware applications.

Key Features of W-952-2S PCI Serial Card

Technical Specifications

Stable Serial Data Handling with 128-Byte FIFO

The W-952-2S uses a 128-byte FIFO in both the transmit and receive paths. The buffer provides temporary data storage when the host computer and connected serial equipment process information at different rates. This design helps reduce frequent processor intervention and supports more consistent communication during active data transfer.

Programmable FIFO thresholds allow the system to define when interrupts or automatic flow-control actions should occur. This capability is useful in industrial or commercial applications where communication timing, processor workload, and incoming data volumes may vary during operation.

Flexible Baud-Rate and Flow-Control Functions

The PCI to 2 serial card supports both software and hardware flow-control methods. Programmable Xon/Xoff regulates communication within the data stream, while CTS#/RTS# and DSR#/DTR# provide external hardware-based control. Readable FIFO levels and flow-control status also give system software greater visibility into current communication conditions.

A flexible baud-rate clock prescaler helps developers configure the serial channels for different equipment requirements. Supported rates of up to 15 Mbps in asynchronous mode and up to 60 Mbps in isochronous mode extend the card beyond basic low-speed serial expansion.

Compatibility with Multiple UART Standards

Software compatibility with 16C450, 16C550, 16C650, 16C750, and 16C950 UARTs makes the W-952-2S suitable for projects involving both established serial applications and more advanced communication requirements. This compatibility can simplify integration when replacing an existing serial card or upgrading a PCI-based host computer.

The card also supports Big Endian byte-lane conversion and can be configured using either an I/O base address or a memory base address. Optional non-volatile EEPROM configuration memory can provide Plug-and-Play support where required by the system design.

Typical Application Areas

The W-952-2S can be considered for PCI-based desktop computers, industrial PCs, embedded computers, and equipment-control systems that require additional serial communication channels.

Recommended application areas include:

• Industrial automation and machine-control systems

• Data acquisition and test equipment

• Laboratory instruments and measuring devices

• Retail terminals and point-of-sale equipment

• Building-management and access-control systems

• Serial scanners, controllers, modems, and data loggers

• Maintenance or replacement of legacy serial communication systems

B2B Purchasing Considerations

Before ordering the W-952-2S PCI to 2 serial card, buyers should confirm the PCI slot type, required serial signal standard, connector arrangement, host operating system, driver availability, connected equipment specifications, and packaging requirements. Checking these details in advance helps prevent compatibility issues during installation.

For OEM production, distribution, system integration, equipment maintenance, or replacement projects, an inquiry should include the required quantity, destination market, host-computer configuration, connected-device information, and expected communication conditions. Complete project details help the supplier evaluate product suitability and prepare an accurate quotation.

Why Choose the W-952-2S PCI to 2 Serial Card?

The W-952-2S combines dual-port serial expansion, 16C950 UART functionality, deep FIFO buffering, flexible baud-rate control, and automated software and hardware flow control in one PCI expansion card. Its broad UART compatibility makes it valuable for maintaining legacy systems while supporting demanding serial communication requirements.

For B2B buyers seeking a practical serial expansion solution for industrial computers, equipment-control platforms, or established PCI-based systems, the W-952-2S provides a clear combination of compatibility, communication flexibility, and efficient data handling.