ISA/PCI intelligente Watch Dog Timer Karte WDT-03

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Funktional Description

It's a fact that the PC hardware and software may fail. To prevent the failure,many different solutions are proposed. However, none of these solutions offer a 100% assurance. Since it's hard to prevent the failure, to detect the failure becomes more and more important. The WDT-03 is used to detect the failure of the software and hardware. It can be used to reduce the risk of PC failure. The WDT-03 is useful even for those systems with built-in watchdog circuit.

The WDT-03 is equipped with two RS-232 ports, one is master port and another one is slave port. The master RS-232 port is designed to communicate with the local host-PC. The local host-PC can enable/disable/refresh/read-back the watchdog timer through the master RS-232 port. The slave RS-232 is used to send information to the remote Host-PC for monitoring. SO the remote HOST will get information immediately if the local host-PC has any software or hardware problem, even the power is failure


  • Don't have to modify the original program
  • Can be used in ISA bus, PCI bus & any system with RS-232 interface
  • Harsh environment detection & warning before system crash
  • Cost Effective Solution


  • O.S./Bus/mounting independent
  • OEM/ODM acceptable
  • Watchdog timer: Software enable/disable watchdog timer; Form 0.03 second to 1966.05 seconds
  • Bus Voltage monitoring : 3.3V , 5V , 12V , -5V , -12V
  • Fan Speed monitoring : 3 channels
  • Temperature monitoring : 3 channels
  • EEPROM: 63 bytes for user read/write, read/write cycles : 100,000 times
  • Interface: RS-232 x 1 for local CPU; RS232 X1 for remote HOST(monitor the local CPU)
  • Baud rate : 2.4K/4.8K/9.6K/19.2K/38.4K/57.6K/115.2K
  • BPS Programmable
  • Data format : N81
  • Command format : the 7000 family compatible
  • Power good signal for PC system
  • Reset signal to simulate external reset-key pressed
  • ISA/PCI bus for PC
  • Four through-hole mounting for any system with RS-232 interface
  • Dimensions : 140mm x 70mm
  • Power Consumption : 2W
  • Operating Temperature : 0°C ~ 60°C
  • Storage Temperature : -20°C ~ 70°C
  • Software : Support DOS, 95/98/Me/2000/NT driver


  • Factory Automation
  • Product Test
  • Laboratory Automation


Ordering Information

WDT-03         Intelligent Watchdog Timer card
                     Include :CA-0205(2-pin Black & Red Cable 0.5m)
                     CA-0910F(9-pin Female-Female D-sub Cable 1.0m)



DB-3R Daughter Board for WDT-03
CA-0205 2-pin Black & Red cable, 0.5m
CA-0910F 9-pin Female-Female D-sub cable,1m


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