These cards are capable of universal PCI. They are suitable for the classic 5V PCI signal environment, as well as for the new 3.3V PCI signal specifications. Therefore they are usable in PCI-X also. The cards add serial and parallel ports to PC systems, as it is required in many applications.
The L-Line cards provide well know serial ports with 16 Byte FIFO, optimal for strict compatibility requirements. The parallel ports provide SPP and bi-directional functions. The H-Line cards provide 128 Byte FIFO in the serial ports, combined with an extrem range of transmission speeds. All this is combined with various other options. The parallel ports offer EPP or ECP capabilities. The Industrial-Line serial ports add selectable transmission functions as RS232 or RS422/RS485.