This PCIe x1 RS232 Serial Adapter Card provides a single serial DB9 port for connecting legacy devices to modern systems. It uses the MCS9922 chipset, which supports high-speed data transfer up to 250Kbps per port and is compatible with the 16C550 UART standard. The card is ideal for industrial applications where reliable serial communication is required, such as connecting older machinery or peripherals that use RS232, RS422, or RS485 protocols. It supports hardware and software flow control, ensuring smooth data transmission without errors. The card also includes programmable GPIO pins for additional flexibility in system integration.
The adapter card is fully compliant with the PCI-Express base specification revision 1.0a and operates on a single-lane (x1) PCIe interface with a maximum throughput of 2.5Gbps. This ensures compatibility with most modern motherboards that support PCIe slots. The low-profile form factor makes it suitable for use in compact or space-constrained systems, such as embedded devices or industrial PCs. The card’s design allows for easy installation and removal, making it convenient for maintenance and upgrades.
The MCS9922 chipset supports two serial ports and eight GPIO pins, offering versatility for various peripheral expansions. It also features a proprietary cascade interface that allows interconnection with similar chips like MCS9900 to expand the number of available ports. This makes the card useful in scenarios where multiple serial connections are needed without requiring additional expansion cards. The I²C interface enables configuration of the device through an external EEPROM, allowing users to customize settings according to their specific requirements.
The card includes all necessary components for immediate use, such as the adapter card itself and any required drivers or software for configuration. It is recommended to check the motherboard’s PCIe slot compatibility and ensure that the system has sufficient power supply for the card’s operation. Users should also verify that their operating system supports the necessary drivers for the MCS9922 chipset to ensure full functionality.
Brand: MCS
Model: MCS9922
Specifications: PCIe x1, RS232/RS422/RS485, 256-byte FIFO, 250Kbps transfer rate, 5-8 bit serial format
Features: Low profile form factor, hardware/software flow control, GPIO support, cascade interface, I²C configuration
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