Advantech's TTL PCI Express DI/O Cards

48-channel PCIE-1751 and 96-channel PCIE-1753 provide 5V/TTL compatible DI/O and counter/timer on the same card, therefore saving the need to buy additional cards in systems that have a limited number of slots. They are capable of performing tasks for many industrial features such as dry and wet contact, digital input filter-to-filter signal noise and improve data accuracy; pattern match interrupt, change of status interrup and additional counter/timer channels. Through the use of interrupts, the card removes the need for the CPU to continuously check the changes in status and pattern matching, allowing users to optimize system performance.