INDUSTRIAL COMPUTER SOURCE
WDT500-P & WDT501-P
| Card Type | Watchdog card |
| I/O Options | Parallel port, terminal block |
| Data Bus | 16-bit ISA |
CONNECTIONS |
|||
Function |
Label |
Function |
Label |
| 25-pin connector | J1 |
External or on-board LED connector | J2 |
| Connections for watchdog output to computer chassis | TB1 |
||
| Note: TB1: terminal 1 (closest to goldfingers) is the active-low watchdog output; terminal 2 is a ground; terminal 3 is the complementary active-high of the terminal 1 output; terminal 4 is an input for output from the fan motor tachometer, or fan-good sensor. | |||
JP1: IRQ SELECTION |
||||||
Jumper set |
IRQ2 |
IRQ3 |
IRQ4 |
IRQ5 |
IRQ6 |
IRQ7 |
Pins 1&2 |
Closed |
Open |
Open |
Open |
Open |
Open |
Pins 3&4 |
Open |
Closed |
Open |
Open |
Open |
Open |
Pins 5&6 |
Open |
Open |
Closed |
Open |
Open |
Open |
Pins 7&8 |
Open |
Open |
Open |
Closed |
Open |
Open |
Pins 9&10 |
Open |
Open |
Open |
Open |
Closed |
Open |
Pins 11&12 |
Open |
Open |
Open |
Open |
Open |
Closed |
JP2: IRQ SELECTION |
|||||
Jumper set |
IRQ10 |
IRQ11 |
IRQ12 |
IRQ14 |
IRQ15 |
Pins 1&2 |
Closed |
Open |
Open |
Open |
Open |
Pins 3&4 |
Open |
Closed |
Open |
Open |
Open |
Pins 5&6 |
Open |
Open |
Closed |
Open |
Open |
Pins 7&8 |
Open |
Open |
Open |
Closed |
Open |
Pins 9&10 |
Open |
Open |
Open |
Open |
Closed |
RELAY ENABLE/DISABLE |
||
Function |
Label |
Position |
| The relay is always de-energized | JP3 |
all pins open |
| The relay is always energized when the +5V power is on | JP3 |
pins 2&3 closed |
| The relay is energized except during reset | JP3 |
pins 1&2 closed |
BASE I/O ADDRESS SELECTION |
|||||||
Setting |
S1/A3 |
S1/A4 |
S1/A5 |
S1/A6 |
S1/A7 |
S1/A8 |
S1/A9 |
3F8h |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
3F0h |
On |
Off |
Off |
Off |
Off |
Off |
Off |
3E0h |
On |
On |
Off |
Off |
Off |
Off |
Off |
380h |
On |
On |
On |
On |
Off |
Off |
Off |
300h |
On |
On |
On |
On |
On |
Off |
Off |
2D8h |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
1F0h |
On |
Off |
Off |
Off |
Off |
Off |
On |
1E0h |
On |
On |
Off |
Off |
Off |
Off |
On |
1C0h |
On |
On |
On |
Off |
Off |
Off |
On |
180h |
On |
On |
On |
On |
Off |
Off |
On |
100h |
On |
On |
On |
On |
On |
Off |
On |
Note: A total of 255 base address settings are available. The switches are a binary representation of the decimal memory addresses. S1/A9 is the Most Significant Bit and switch S1/A3 is the Least Significant Bit. The switches have the following decimal values: S1/8=32768, S1/7=16384, S1/6=8192, S1/5=4096, S1/4=2048, S1/3=1024, S1/2=512, S1/1=256. Turn off the switches and add the values of the switches to obtain the correct memory address. (Off=1, On=0) |
|||||||