Stable Dual Serial Expansion for PCI-Based Systems

PCI 2 Serial Port Card W-9835-2S adds two serial communication channels to a compatible desktop computer, industrial PC, control workstation, or embedded host equipped with an available PCI slot. The card is designed for organizations that need to connect established serial devices without replacing reliable equipment or redesigning an existing computer platform.

With a PCI-compatible dual UART, programmable communication settings, and integrated FIFO support, W-9835-2S provides a practical interface for data collection, equipment control, maintenance, and system integration. It is suitable for distributors, industrial computer builders, repair companies, automation contractors, and project buyers seeking a repeatable dual-COM-port expansion solution.

Key Features and Customer Value

Technical Specifications

Programmable UART Control for Flexible Communication

The dual UART design includes an on-chip oscillator, selectable receive FIFO trigger levels, modem-control signals, and status-report functions. Compatibility with the 16C550 UART architecture helps system developers work with familiar serial communication behavior. These functions support configuration for different peripheral requirements while allowing software to monitor port conditions and manage data exchange.

Because real-world serial performance depends on the host computer, operating system, driver, cable quality, device protocol, and configured baud rate, buyers should test the card with their target equipment before a large deployment. Sample validation can help reduce integration risk for industrial projects and repeat orders.

Designed for Industrial and Legacy Serial Devices

The W-9835-2S is relevant for serial equipment used in factory automation, retail systems, laboratories, security installations, telecommunications, and machine maintenance. Typical applications may include barcode scanners, POS peripherals, industrial controllers, measuring instruments, access-control devices, modems, printers, and other equipment that communicates through a compatible serial interface.

For permanent installations, an internal PCI serial card helps keep the connection hardware inside the computer chassis and reduces dependence on external adapters. This can be useful in fixed workstations, production equipment, service terminals, and industrial computers where a clean and repeatable hardware configuration is preferred.

PCI Serial Card Comparison

Compatibility and Installation Notes

Before ordering, verify that the host computer has an available compatible PCI slot and supports the required 5 V operating environment. Confirm whether the connected equipment requires a DB9 male or DB25 male interface. Buyers should also check driver availability for the exact operating system, hardware revision, and deployment environment.

Installation should be performed with the system powered off and with appropriate electrostatic-discharge protection. After the card and driver are installed, confirm the assigned COM ports and configure baud rate, data bits, parity, stop bits, and flow-control settings according to the connected device documentation.

Request a B2B Quote for W-9835-2S

To receive an accurate quotation, provide the required order quantity, destination country, preferred DB9 or DB25 connector, host operating system, target serial device, and expected communication settings. Project buyers may also specify packaging, labeling, documentation, sample-testing, delivery, and repeat-order requirements.

Contact us to confirm current availability, technical suitability, configuration options, and commercial terms. PCI 2 Serial Port Card W-9835-2S offers a focused dual-port expansion solution for compatible PCI-based computers that must continue supporting established serial equipment.