Reliable PCI 2 Port Serial/RS232 Card (2S) W-954-2S

Dual-Port Serial Expansion for PCI-Based Systems

The W-954-2S PCI 2 Port Serial/RS232 Card is designed for computers that need to communicate with two RS232 devices through an available PCI slot. It provides a practical way to add hardware serial interfaces to desktop computers, industrial PCs, control terminals, test stations, and other systems that continue to use RS232 communication.

By installing one expansion card, users can connect two independent serial devices without relying on multiple single-port adapters. This makes the card suitable for system upgrades, equipment replacement projects, industrial maintenance, and applications where existing serial devices and software must remain in service.

Key Features of W-954-2S

Technical Specifications

Stable Communication for Legacy and Industrial Devices

Many industrial, commercial, and laboratory devices continue to depend on RS232 because it offers simple point-to-point communication and established software support. The W-954-2S helps preserve these existing systems by adding two physical serial channels to a compatible PCI computer.

This approach can reduce the cost and disruption associated with replacing functional scanners, printers, controllers, meters, diagnostic tools, or other serial equipment. It is particularly useful for integrators maintaining long-life systems where compatibility and continuity are more important than changing the complete hardware platform.

Enhanced UART Functions and FIFO Buffering

The card supports software compatibility with several widely used UART generations, including 16C450, 16C550, 16C650, 16C750, and 16C950. This broad compatibility helps simplify integration with different serial communication programs and established equipment environments.

A 128-byte-deep FIFO is provided for each transmitter and receiver. The buffering capacity helps manage repeated or continuous serial data and can reduce the frequency of processor interruptions. Programmable XON/XOFF flow control further supports communication when the connected device and host computer process data at different speeds.

Typical Application Scenarios

• Industrial computers connected to controllers, PLC-related equipment, data loggers, or monitoring devices

• POS terminals using serial receipt printers, barcode scanners, customer displays, scales, or cash drawers

• Laboratory and test workstations communicating with analyzers, meters, programmers, or calibration instruments

• Access-control, attendance, security, alarm, and building-management systems with RS232 equipment

• Maintenance and replacement projects requiring continued operation of legacy serial devices

Compatibility Checks Before Ordering

To reduce installation risk, buyers should verify the host computer configuration before placing an order. The motherboard must provide a compatible PCI slot, and the available internal space should match the card and bracket arrangement. Driver availability should also be checked against the intended operating system.

For project evaluation, confirm the connected equipment type, communication settings, required connector arrangement, operating environment, and expected order quantity. Newer computers may use different expansion interfaces, so PCI compatibility should not be assumed only from the appearance of the motherboard.

Why Choose the W-954-2S PCI RS232 Card?

The W-954-2S combines two RS232 channels, deep FIFO buffering, flexible UART compatibility, programmable flow control, and configurable addressing in one PCI expansion card. It is a practical choice for system integrators, equipment builders, maintenance teams, and distributors serving customers with established serial communication requirements.

For a precise quotation, please provide the required quantity, destination market, computer operating system, PCI slot information, connected RS232 device type, and any packaging or documentation requirements. These details help confirm suitability and support an accurate response regarding pricing, lead time, packing, and delivery arrangements.