Computer/Embedded Technology


128-channel isolated digital I/O card

3 May 2006 Computer/Embedded Technology

The high-density PCI-1758U 128-channel isolated digital I/O cards from Advantech are designed for large and demanding applications. The PCI-1758UDI offers 128 inputs, the PCI-1758UDO has 128 outputs, and the PCI-1758UDIO is a combination card with its 64 outputs and 64 inputs. The cards also offer several new functions to improve reliability, signal quality and programming flexibility.

Designed to be used in industrial environments, the outputs of these cards are equipped with a watchdog timer, so in the event of a software failure, the outputs can be individually set to safe states. There is also a programmable power-up status function to ensure safe output values when the system is powered on. These output values can be set individually. Reliable operation is also aided by the isolation protection, which can withstand up to 2500 V d.c.

With a universal PCI bus, the PCI-1758U series supports both traditional 5 V systems and newer 3,3 V systems, and the built-in BoardID DIP switch helps define each card's unique ID when multiple cards are installed on the same PC chassis.



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