24 port RS422/485 serial PCI Express 2.0 card for performance serial communication in home and industrial applications Key benefits Enhanced connectivity for machines and devices: a PCI Express 2.0 card that supports 2 or 4 RS422/485 serial ports, enabling reliable and fast serial communication across applications. Industrystandard compatibility with cost efficiency: XR17V358 series multiIO PCIe controller using the 16C550 UART standard to provide a familiar, affordable interface for industrial machines. Flexible, robust serial communication: supports asynchronous fullduplex communication over twisted pair or shielded cables, accommodating a range of installation environments. Easy installation with strong protection: automatic IRQ address allocation and builtin DCDC isolation power reduce setup complexity and improve protection against ground interference. Specification highlights Interface: PCI Express 2.0 card form factor Ports: 2port or 4port RS422/485 serial Controller: XR17V358 series multiIO PCIe controller with 16C550 UART compatibility Electrical isolation: builtin DCDC isolation power IRQ handling: automatic IRQ address allocation Cable types supported: twisted pair or shielded cable Applications and use scenarios Factory automation and industrial control: connect PLCs, motor controllers, and other RS422/485 devices to a central PC for data acquisition, monitoring, and supervisory tasks. Remote telemetry and data logging: establish reliable serial links to sensors and instruments across a manufacturing floor or processing line, enabling continuous data collection and reporting. Home workshop and lab projects: integrate microcontrollers, sensors, and control devices in an RS485 network for testing, automation, and experimental setups. This card provides a reliable, compatible, and easytoinstall solution for extending serial connectivity in both home and industrial environments, with protection against ground interference and straightforward IRQ configuration.