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# IBM CORPORATION
IBM PC/XT AND PC/AT CLUSTER ADAPTER
NIC Type Unidentified
Network Transfer Rate Unidentified
Data Bus 8-bit ISA
Topology Linear Bus
Wire Type RG-59B/U 75ohm coaxial
Boot ROM Available (location unidentified)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|----------------------------------+-------------------------|
| RG-59B/U 75ohm coaxial connector | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|----------------------------------------+-------+-----------|
| » | Factory configured - do not alter | J3 | Closed |
|---+------------------------------------+-------+-----------|
| » | Factory configured - do not alter | SW1/7 | Off |
|---+------------------------------------+-------+-----------|
| | Boot ROM enabled | SW1/8 | On |
|---+------------------------------------+-------+-----------|
| | Boot ROM disabled | SW1/8 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NODE ADDRESS |
|------------------------------------------------------------|
| Setting | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
|---------+--------+--------+--------+-------+-------+-------|
| 0 | Off | Off | Off | Off | Off | Off |
|---------+--------+--------+--------+-------+-------+-------|
| 1 | On | Off | Off | Off | Off | Off |
|---------+--------+--------+--------+-------+-------+-------|
| 2 | Off | On | Off | Off | Off | Off |
|---------+--------+--------+--------+-------+-------+-------|
| 3 | On | On | Off | Off | Off | Off |
|---------+--------+--------+--------+-------+-------+-------|
| 4 | Off | Off | On | Off | Off | Off |
|---------+--------+--------+--------+-------+-------+-------|
| 59 | On | On | Off | On | On | On |
|---------+--------+--------+--------+-------+-------+-------|
| 60 | Off | Off | On | On | On | On |
|---------+--------+--------+--------+-------+-------+-------|
| 61 | On | Off | On | On | On | On |
|---------+--------+--------+--------+-------+-------+-------|
| 62 | Off | On | On | On | On | On |
|---------+--------+--------+--------+-------+-------+-------|
| 63 | On | On | On | On | On | On |
|------------------------------------------------------------|
| Note: A total of 64 node address settings are |
| available. The switches are a binary representation |
| of the decimal node addresses. SW1/6 is the Most |
| Significant Bit and switch SW1/1 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/6=32, SW1/5=16, SW1/4=8, SW1/3=4, |
| SW1/2=2, SW1/1=1. Turn on the switches and add the |
| values of the switches that are on to obtain the |
| correct node ID. (Off=0, On=1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT |
|------------------------------------------------------------|
| Setting | J2 |
|----------------------------+-------------------------------|
| IRQ3 | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| IRQ7 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Disabled | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SHARED RAM ADDRESS |
|------------------------------------------------------------|
|Setting|SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6|SW1/7|SW1/8|
|-------+------+------+------+------+------+-----+-----+-----|
|00390h | Off | Off | Off | Off | Off | Off | Off | Off |
|-------+------+------+------+------+------+-----+-----+-----|
|00790h | On | Off | Off | Off | Off | Off | Off | Off |
|-------+------+------+------+------+------+-----+-----+-----|
|00B90h | Off | On | Off | Off | Off | Off | Off | Off |
|-------+------+------+------+------+------+-----+-----+-----|
|00F90h | On | On | Off | Off | Off | Off | Off | Off |
|-------+------+------+------+------+------+-----+-----+-----|
|01390h | Off | Off | On | Off | Off | Off | Off | Off |
|-------+------+------+------+------+------+-----+-----+-----|
|3EF90h | On | On | Off | On | On | On | On | On |
|-------+------+------+------+------+------+-----+-----+-----|
|3F390h | Off | Off | On | On | On | On | On | On |
|-------+------+------+------+------+------+-----+-----+-----|
|3F790h | On | Off | On | On | On | On | On | On |
|-------+------+------+------+------+------+-----+-----+-----|
|3FB90h | Off | On | On | On | On | On | On | On |
|-------+------+------+------+------+------+-----+-----+-----|
|3FF90h | On | On | On | On | On | On | On | On |
|------------------------------------------------------------|
| Note: A total of 255 base address settings are |
| available. The switches are a binary representation of |
| the decimal memory addresses. SW1/8 is the Most |
| Significant Bit and switch SW1/1 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/8=131,072, SW1/7=65,536, |
| SW1/6=32,768, SW1/5=16,384, SW1/4=8,192, SW1/3=4,096, |
| SW1/2=2,048, SW1/1=1,024. Turn off the switches and add|
| the values of the switches that are off to 912 to |
| obtain the correct memory address. (Off=0, On=1) |
+------------------------------------------------------------+