Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!amdahl!pyramid!prls!philabs!ttidca!subelman
From: subelman@ttidca.TTI.COM (Ed Subelman)
Newsgroups: comp.sys.ibm.pc
Subject: Need information on watchdog timers
Message-ID: <3090@ttidca.TTI.COM>
Date: 24 Aug 88 22:36:45 GMT
Reply-To: subelman@ttidca.tti.com (Ed Subelman)
Distribution: na
Organization: Citicorp/TTI, Santa Monica
Lines: 12

I have an AT based system that should operate 24 hours a day, 7 days a week.
It sometimes crashes (because of heat, I suspect) and I am looking for some
hardware device that will automatically reboot the system if there is a crash.
My idea is to build a card that has a timer and can be accessed via an
I/O port by the software. If the port is not accessed in N seconds, it
reboots the machine by grounding the "power good" signal.
Does anyone know if a device of this type is available commercially?
Any reference would be appreciated.
-- 
Ed Subelman			subelman@ttidca.TTI.COM
Citicorp(+)TTI			{csun|philabs|psivax}!ttidca!subelman
3100 Ocean Park Blvd.
Santa Monica, CA  90405		(213) 452-9191, x2972