The COMM+4.PCI provides four field selectable RS­232/422/485 serial ports for control and automation applications. Select RS-232, RS-422, or RS-485 for each port to suit your application needs. Our onboard autoenable hardware automatically handles the RS-485 driver enable, allowing the RS­485 ports to be treated as a standard COM: port by the operating system. We include our Advanced COM drivers for 95/98/ME/NT/2000 and XP providing IRQ sharing, Windows serial diagnostics, and other enhanced features. Our Linux and QNX utilities are also included to simplify installation.

4 PORT PCI RS-232/422/485 Back to 4 Port

View The 7404 User Manual (PDF) Download The Serial Utility Disk

• Four port field selectable RS-232/422/485 interface
• On board RS-485 auto enable circuit
• 16850 buffered UART(s) standard with deep 128 byte FIFO supporting PC data rates up to 460.8K bps
• Supports all PCI interrupts
• On board interrupt status port provides efficient interrupt sharing
• Includes Windows Advanced COM:drivers, utilities, INF files and help files to simplify installation
• DB-9 and Terminal Block kit cabling option available to simplify field wiring.
• Click Here for technical details on our TB02 terminal block kit option.