Product overview: Serial PC cards PCI Express #13641 PCI Express Card2x RS232/RS422/RS485,1kV isolated #13441 PCI Express Card 2x 20mA,1kV isolated #13041 PCI Express Motherboard for various serial interface modules Low-Profile PCI #13610 Low Profile PCI Card1x RS232/RS422/RS485,1kV isolated #13410 Low Profile PCI Card 1x 20mA, 1kV isolated Standard PCI #13621 PCI Card2x RS232/RS422/RS485,1kV isolated #13421 PCI card 2x 20mA, 1kV isolated #13021 PCI Motherboard for various serial interface modules ISA #13801 ISA Card 2x RS232 without galvanic isolation #13802 ISA Card 2x RS232,1kV isolated #13601 ISA Card 2x RS422/RS485,1kV isolated #13401 ISA Card 2x 20mA,1kV isolated #13001 ISA Motherboard for various serial interface modules Modules for interface expansion #18811 RS232 interface module with DTE configuration #18611 RS422/RS485 interface module #18613 RS422/RS485 interface module with overvoltage protection #18813 RS232/RS422/RS485 interface module #18411 20mA interface module selectable active/passive mode Up