Relay Setup; Installation - B&B Electronics PC Watchdog Timer Card ATRWDT User Manual

If you want to install at another address, use the following
procedure.
1. Select the address: Using an I/O port usage table (one is
included in Appendix A) select an unused hex address space.
Note that the WDT card occupies 8 bytes of I/O space. Use
caution when selecting a port address, it is important that
nothing else is installed at the selected address.
2. Convert the hex address to its binary equivalent.
3. Throw away the 3 least significant bits.
4. The remaining 7 digits represent the switch address. 1's
represent an OFF switch. 0's represent an ON switch.

Relay Setup

The jumper labeled RELAY NORMALLY provides two ways for
the external reset to be configured. With the jumper in the 0 position,
the relay will normally be discharged, and will energize after the
timeout is reached. In the 1 position, the relay will be energized while
the timer is running. The relay will discharge after the timeout is
reached, the timer disabled, or the power is turned off.

Installation

1. Turn the power to your computer off and unplug from the power
outlet.
2. Remove the cover of the computer.
3. Pick an unused ISA slot. The WDT will work in a short (8-bit) or
full length (16-bit) slot.
4. Remove the expansion ISA slot cover. Save the screw for
installation of WDT.
5. Install the WDT into the unused ISA slot. Be certain that the card
is inserted completely into the slot.
6. Secure the card with the mounting screw.
Documentation Number ATxWDT-1303 5