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# B & B ELECTRONICS
PCWDT
Card Type Serial card
Chip Set Unidentified
Data Bus 8-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------+-------+------------------------+-------|
| Reset switch | HP1 | 25-pin serial port | J2 |
|-------------------+-------+------------------------+-------|
| Reset switch | HP2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| Watchdog timer reset select computer | JP1 | Pins 1 & 2 |
| reboot | | closed |
|---------------------------------------+-------+------------|
| Watchdog timer reset select relay | JP1 | Pins 2 & 3 |
| remains energized | | closed |
|---------------------------------------+-------+------------|
| Timer reset select program reset | JP2 | Pins 1 & 2 |
| | | closed |
|---------------------------------------+-------+------------|
| Timer reset select external reset | JP2 | Pins 2 & 3 |
| (requires trigger connected through | | closed |
| J2) | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ADDRESS SELECTION |
|------------------------------------------------------------|
|Address | SW1/1 | SW1/2 | SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |
|--------+-------+-------+-------+------+------+------+------|
| 200 | On | On | On | On | On | On | Off |
|--------+-------+-------+-------+------+------+------+------|
| 208 | Off | On | On | On | On | On | Off |
|--------+-------+-------+-------+------+------+------+------|
| 300 | On | On | On | On | On | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 308 | Off | On | On | On | On | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 310 | On | Off | On | On | On | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 318 | Off | Off | On | On | On | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 380 | On | On | On | On | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 388 | Off | On | On | On | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 3A0 | On | On | Off | On | Off | Off | Off |
|--------+-------+-------+-------+------+------+------+------|
| 3A8 | Off | On | Off | On | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| The PCWDT can be used to re-boot the host computer by |
| connecting HP1 & HP2. For further information about this |
| process, see B & B electronics documentation. |
+------------------------------------------------------------+