Card Type	Watchdog timer card
Chip Set	None
Maximum Onboard Memory	Unidentified
I/O Options	Serial port
Hard Drives supported	None
Floppy drives supported	None
Data Bus	16-bit ISA
Card Size	Full-length

CONNECTIONS
Function	Label	Function	Label
9-pin serial port	J2	Reset button connector	J4
Motherboard reset connector	J3	ATX power supply connector	ATX

USER CONFIGURABLE SETTINGS
Function	Label	Position
Normal relay enabled	JP1/A-B	Pins 1 & 2 closed
Timer relay enabled	JP1/A-B	Pins 2 & 3 closed
Note: If normal relay is enabled, the relay will discharge normally and will energize after the timeout is reached. If timer relay is enabled, the relay will be energized while the timer is running and discharge after the timeout is reached, disabled, or the power is turned off.

BASE I/O ADDRESS SELECTION
Setting	SW1/1	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6	SW1/7
000h	On	On	On	On	On	On	On
008h	Off	On	On	On	On	On	On
010h	On	Off	On	On	On	On	On
018h	Off	Off	On	On	On	On	On
020h	On	On	Off	On	On	On	On
3D8h	Off	Off	On	Off	Off	Off	Off
3E0h	On	On	Off	Off	Off	Off	Off
3E8h	Off	On	Off	Off	Off	Off	Off
3F0h	On	Off	Off	Off	Off	Off	Off
3F8h	Off	Off	Off	Off	Off	Off	Off
Note: A total of 128 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/7 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: SW1/7=512, SW1/6=256, SW1/5=128, SW1/4=64, SW1/3=32, SW1/2=16, SW1/1=8. Turn off the switches and add the values of the switches to obtain the correct memory address. (Off=1, On=0)

MISCELLANEOUS TECHNICAL NOTES

To enable the ATR version of the watchdog timer card to reboot the main board, they must be connected. The mother board reset connector on the watchdog timer card can be connected to the reset pins on the main board or the reset button connector of the watchdog timer card can be connected to the jumper wires of the main board’s reset switch.