B&B Electronics ATRWDT, ATXWDT manual Relay Setup, Installation

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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

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B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

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Contents PC Watchdog Timer Card CE Table of Contents Specifications FeaturesGeneral Information Introduction Address Switch Setup Setup and Installation InspectionATRWDT/ATXWDT PCB Silk Screen 200 Address Switches S1 Position BusWeight Hex Weight Connection DecimalInstallation Relay SetupConnecting the Atrwdt Motherboard Reset Option Installing the Software Connecting the ATX Reset Option for the AtxwdtDocumentation Number ATxWDT-1303 Operation Communicating with the WDT Registers PinoutsOutput Schematic Windows NT and Windows SoftwareExisting DOS Programs WindowsChanging the I/O Port Address Disk CachingParameters IoPortAddress=0x0200 IoPortCount=0x0001 BBPCWDTStartup Command ReferenceBBPCWDTShutdown Value hex Timeout BBPCWDTResetAs Long, value As Byte As Byte BBPCWDTReadRegisterBool BBPCWDTReadRegisterHANDLE hDev BYTE* valueSdlc Appendix a Hardware I/O MapsParallel printer on monochrome adapter Map of AT Class MachinesDo While INKEY$ = Appendix B QuickBASIC ExampleDeclaration of Conformity Appendix C Declaration of Conformity Statement