UWDTPC OEM Universal Watchdog Timer
The Industrologic UWDTPC is a versatile standalone watchdog timer circuit that can increase the reliability of nearly any microcontroller board, single board computer, or personal computer system by monitoring a signal and activating the reset circuit if the signal is no longer present.
The UWDTPC can be triggered with a digital output signal, a disk drive activity LED, or with RS-232 serial data from a spare serial port connector.
The UWDTPC has been designed to allow easy installation inside typical computer enclosures containing motherboards and power supplies, including personal computers and Mini ITX systems.
UWDTPC documents and information: