Upgrade your PC’s serial capabilities with the Brainboxes 4 Port RS232 PCI Serial Card. Designed for reliability in demanding environments, this universal PCI card delivers four RS232 ports with opto-isolation on TX, RX, GND, CTS and RTS lines, providing exceptional protection against electrical noise and ground loops. Ideal for industrial automation, data logging, point-of-sale systems, medical devices, and legacy equipment, it combines robust signaling, fast data transfer, and straightforward installation. With high baud rates up to 921,600 and generous FIFOs, it keeps your critical serial communication synchronized and responsive, even under heavy workloads. The Brainboxes PCI serial card is engineered to deliver uncompromising performance while remaining easy to integrate into a wide range of PC configurations.

• Four RS232 ports on a single PCI card for expanding multiple serial connections without added PCI slots or adapters.
• Opto-isolated TX, RX, GND, CTS & RTS lines to protect your PC and devices from surges, noise, and ground loops, enhancing reliability in industrial settings.
• High-speed data transfer with baud rates up to 921,600 and 128-byte deep transmit/receive FIFOs to minimize latency and prevent data loss during bursts.
• 1 Mbit/s line drivers ensure clean, stable signal integrity over longer RS232 cable runs and in electrically noisy environments.
• Universal PCI compatibility with included driver support for quick setup across major operating systems, making it a versatile choice for both legacy and modern systems.

Technical Details of Brainboxes 4 Port RS232 PCI Serial Card

• : 4 x RS232 serial ports, providing simultaneous multi-device communication on one PCI card.
• : Opto-isolated TX, RX, GND, CTS and RTS lines for enhanced protection against electrical transients and ground loops.
• : Up to 921,600 baud, enabling high-performance serial data transfer for demanding applications.
• : 128-byte transmit FIFO and 128-byte receive FIFO to support smooth data flow and reduce overflow under peak loads.
• : 1 Mbit/s line drivers delivering strong signal integrity across longer cables and noisier environments.
• : Universal PCI architecture with driver support included, designed for broad OS compatibility and simple installation.
• : Suitable for a range of operating systems; check the latest driver package for Windows and Linux support.

how to install Brainboxes 4 Port RS232 PCI Serial Card

• Power down the computer, unplug the power cord, and open the chassis to access the motherboard.
• Locate an available PCI slot and remove the corresponding slot cover if needed to accommodate the card.
• Insert the Brainboxes PCI serial card firmly into the PCI slot until it is fully seated, then secure the card with a chassis screw.
• Reconnect the case and power up the system. The operating system should detect the new PCI device.
• Install the provided driver package from the Brainboxes CD or the official website. Follow the on-screen instructions to complete the installation and restart if prompted.
• Connect your RS232 devices to the four ports, configure each serial port in the operating system (COM ports, baud rate, parity, and flow control), and verify communication using loopback tests or terminal software.

Frequently asked questions

• Q: What systems does this card support? A: The Brainboxes 4 Port RS232 PCI Serial Card includes drivers for major operating systems and is designed for broad compatibility across Windows and Linux platforms. Always verify the latest driver availability for your OS version.
• Q: How many serial devices can I connect? A: Four independent RS232 devices can be connected simultaneously via the four ports on the card, enabling multi-device serial communication from one PCI slot.
• Q: What is opto-isolation and why is it important? A: Opto-isolation uses optical couplers to electrically isolate serial signaling lines (TX, RX, GND, CTS, RTS), reducing the risk of ground loops, electrical noise, and transient damage to both the PC and connected devices.
• Q: Can I use high-speed baud rates? A: Yes, the card supports up to 921,600 baud, making it suitable for high-speed serial applications where fast data throughput is essential.
• Q: Do I need to purchase drivers separately? A: No. The card arrives with a driver package or includes drivers for quick setup; ensure you install the correct driver version for your operating system to enable all features.