PCI-8554 - 10-CH General-Purpose Timers/Counters & 8-CH Digital I/O Card

PCI-8554 is a general-purpose counter / timer and digital I/O card.The card is designed with four 8254, a programmable interval timer/counter chip, totally, providing twelve 16-bit down counter or frequency dividers.
The card has multi-configurations. Its counters can be set in an independent or cascaded configuration. The gate controls for the counter can come from either the internal default enable signal or from external sources. The clock source of the counters can be set from an internal or external clock source, when an external clock source is used, users can configure the jumper as to disable or enable the debounce function.
The card also provides digital input and output ports. There are 8 digital output and 8 digital input channels, which can be used to control or monitor external devices.