Serial Card W-9900-2S

Reliable PCI Express Integration

The W-9900-2S provides a practical serial I/O expansion solution for system integrators, industrial PC builders and automation equipment manufacturers. It is fully compliant with the PCI Express Base 1.0a specification and compatible with PCI Express Card application requirements, helping engineers add serial connectivity to supported host systems.

The card utilizes a 100 MHz differential PCI Express common reference clock, supporting dependable communication between the host platform and connected serial devices.

Flexible RS232, RS485 and RS422 Communication

The W-9900-2S supports RS232, RS485 and RS422 operating modes, making it suitable for different serial communication environments. Its multi-mode capability can serve conventional point-to-point device connections as well as industrial applications requiring differential signaling.

For B2B buyers managing multiple equipment types, this flexibility can simplify product selection for industrial control, data acquisition, test systems, machine communication, POS hardware, security equipment and other serial-device integration projects.

High-Speed Serial Data Transfer

Bi-directional serial speeds range from 50 bps to 16 Mbps per port, allowing engineers to work with both low-speed legacy equipment and high-speed serial applications. Each serial port includes on-chip 256-byte-deep FIFOs in the transmit and receive paths to buffer serial data efficiently.

Key Parameter	W-9900-2S Specification
Host Interface	PCI Express
PCI Express Compliance	PCI Express Base 1.0a
Reference Clock	100 MHz differential common reference clock
Serial Modes	RS232 / RS485 / RS422
Data Rate	50 bps to 16 Mbps per port
FIFO	256-byte TX and RX FIFO per serial port
Serial Format	5, 6, 7, 8 and 9-bit
Parity	Even, Odd, None, Space and Mark
Flow Control	Hardware and software
Custom Baud Rate	Supported
Power Features	Remote wake-up and power management
IrDA	Slow IrDA supported on all serial ports

Advanced Serial Configuration

The W-9900-2S supports full serial modem control together with hardware and software flow control. Engineers can configure 5, 6, 7, 8 or 9-bit serial formats to match connected equipment.

Even, Odd, None, Space and Mark parity modes are supported, increasing compatibility with controllers, instruments and legacy systems using different serial settings. Custom baud rates can be achieved with an external clock or by programming the internal PLL, which is useful for specialized devices operating outside common standard baud rates.

Power Management and Communication Features

Remote wake-up and power management functions are supported, helping system designers address applications where controlled device operation and energy management matter. Serial port transceiver shutdown is also supported.

Slow IrDA is available on all serial ports. The supplied specification also references IEEE1284; buyers requiring IEEE1284-related functionality should confirm the intended implementation and interface details for their project before ordering.

Built for Professional B2B Applications

The W-9900-2S is suitable for buyers who need configurable PCI Express serial communication for equipment integration, industrial computing or system upgrades. Its combination of multiple serial standards, broad baud-rate support, deep FIFOs and flexible data formats provides a versatile platform for serial-device connectivity.

Typical applications include:

• Industrial automation and machine control

• Factory data collection and monitoring

• Test and measurement equipment

• Embedded and industrial PC systems

• Communication gateways

• POS, security and access-control equipment

• Legacy equipment modernization

• Custom system integration projects

Why Choose the W-9900-2S?

A serial expansion card must provide more than physical connectivity. Compatibility, interface flexibility, throughput and configuration options directly affect system integration.

The W-9900-2S combines PCI Express connectivity with RS232, RS485 and RS422 support, transfer rates up to 16 Mbps per port, 256-byte transmit and receive FIFOs, multiple serial formats, configurable parity and custom baud-rate support. These capabilities make it a strong choice for professional communication projects requiring adaptable serial connectivity.

Request Product Information or a Quotation

Need to confirm compatibility for your industrial PC, automation platform or serial communication project? Send your required serial mode, target baud rate, host system configuration, application scenario and estimated order quantity. These details help evaluate whether the W-9900-2S matches your integration requirements and make quotation discussions more efficient.