EXSYS EX-42372 Placa PCI 2S série RS-422/485 com suporte low-profile

This PCI expansion card adds two RS-422/485 serial ports to a desktop computer, enabling reliable industrial communication at data rates up to 921.6 Kbps. The card supports both 2-wire and 4-wire RS-485 modes with selectable 120 Ohm termination and bias resistors, making it suitable for multi-drop networks.

Advantages

The Oxford OX16C952 chipset provides 128-byte FIFO buffers per port, reducing CPU load during high-speed transfers. The card is PCI 2.1/2.2/2.3/3.0 compliant and supports both 3.3V and 5V universal PCI slots.

Suitable for

• Industrial automation and control systems
• Connecting to RS-422/485 sensors, PLCs, and instruments
• Legacy system upgrades requiring serial ports
• Low-profile desktop systems (with included bracket)

Key specifications

• Interface: PCI 32-bit, 33 MHz
• Ports: 2x DB9 male
• Serial standards: RS-422, RS-485
• Chipset: Oxford Semiconductor OX16C952
• FIFO: 128-byte per port
• Max data rate: 921.6 Kbps
• Flow control: RTS/CTS, XON/XOFF
• OS support: Windows XP/Vista/7/8/10/11, Server, Linux, DOS

Recommendations

For reliable multi-drop RS-485 networks, enable the on-board termination and bias resistors as needed. Install the WHQL-certified drivers before inserting the card to ensure automatic IRQ and I/O assignment.