Reliable PCI 2S1P Card W-9835-2S1P for Serial and Parallel Expansion

Flexible Multi-Port Expansion for Legacy and Industrial Systems

PCI 2S1P Card W-9835-2S1P is a multi-I/O expansion card designed for desktop computers, industrial PCs, control systems, and legacy equipment that require additional serial and parallel communication interfaces. It combines two serial ports and one parallel port on a single PCI card, helping users connect established peripherals without installing several separate expansion cards.

The integrated design is suitable for system upgrades, equipment maintenance, industrial automation, testing systems, point-of-sale equipment, and other applications where traditional COM and LPT interfaces remain essential. By retaining access to these communication standards, businesses can continue using compatible equipment and software without replacing an entire computer system.

Key Features of PCI 2S1P Card W-9835-2S1P

Two Serial Ports for Reliable Device Communication

The two serial channels allow a host computer to communicate with multiple compatible devices through one expansion card. Typical connected equipment may include industrial controllers, barcode readers, card readers, modems, data-acquisition devices, measuring instruments, and point-of-sale peripherals.

The serial controller uses a PCI-compatible dual UART with 16C550-compatible architecture. It includes 16-byte transmit and receive FIFOs, programmable baud-rate generation, selectable receive trigger levels, modem control signals, and status-report functions. The maximum listed serial data rate is up to 1 MB/s.

Parallel Interface with Multiple Operating Modes

In addition to the serial interfaces, the PCI 2S1P Card W-9835-2S1P provides one parallel port for equipment that continues to use an LPT-style connection. The parallel controller supports SPP, PS/2, EPP, and ECP modes, allowing it to work with different compatible peripherals and communication requirements.

A 16-byte FIFO supports parallel data handling, while software-programmable mode selection allows the system configuration to be adjusted according to the connected device. The maximum listed parallel data rate is up to 1.5 MB/s.

Technical Specifications

           Note: Actual performance and compatibility depend on the motherboard, PCI-slot design, driver version, operating-system configuration, connected peripheral, communication settings, and cable quality.        

Typical Application Scenarios

PCI 2S1P Card W-9835-2S1P is suitable for upgrade and maintenance projects where serial and parallel interfaces are still required. Recommended application scenarios include:

• Industrial computers and machine-control systems

• Barcode scanners, card readers, and point-of-sale peripherals

• Laboratory instruments and data-acquisition equipment

• Compatible modems and serial communication devices

• Legacy printers, programmers, and parallel peripherals

• Computer repair, replacement, and system-integration projects

• Production equipment using established COM or LPT connections

Installation and Compatibility Guidance

Before installation, users should power off the computer and confirm that the motherboard provides a compatible PCI slot with the required 5 V operation. The card should be inserted securely into the slot and fastened to the computer chassis before any peripheral cables are connected.

After installation, the appropriate driver should be installed for the target operating environment. Users should then verify the assigned COM and LPT resources and configure the required baud rate, parity, transfer mode, and other communication settings according to the connected equipment.

Buyers are advised to confirm the operating system, PCI-slot specification, communication protocol, connector type, cable pinout, and peripheral requirements before placing an order.

Why Choose PCI 2S1P Card W-9835-2S1P?

PCI 2S1P Card W-9835-2S1P combines two serial connections and one parallel connection in a practical single-card design. It is intended for systems that continue to depend on traditional computer interfaces and require a focused expansion solution for maintenance, integration, or equipment connectivity.

Its 16C550-compatible UART, FIFO architecture, programmable communication controls, multiple parallel modes, and selectable serial connector configurations provide useful flexibility for different legacy and industrial applications. Installing one combined expansion card can also help preserve available PCI slots and simplify internal system configuration.

Request a Quote for PCI 2S1P Card W-9835-2S1P

For an accurate quotation, please provide the required quantity, target operating system, preferred serial connector, destination country, application equipment, and any packaging or labeling requirements.

Supplying complete project information helps confirm product configuration, driver requirements, availability, lead time, and ordering terms more efficiently.