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# AMERICAN RESEARCH CORPORATION
PCN-002
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 8-bit ISA
Topology Star
Linear Bus
Wiring Type RG62A/U 93ohm coaxial
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| NODE ADDRESS |
|------------------------------------------------------------|
|Node |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |SW1/8|
|-----+------+------+------+------+------+------+------+-----|
| 0 | - | - | - | - | - | - | - | - |
|-----+------+------+------+------+------+------+------+-----|
| 1 | Off | On | On | On | On | On | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 2 | On | Off | On | On | On | On | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 3 | Off | Off | On | On | On | On | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 4 | On | On | Off | On | On | On | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 251 | Off | Off | On | Off | Off | Off | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 252 | On | On | Off | Off | Off | Off | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 253 | Off | On | Off | Off | Off | Off | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 254 | On | Off | Off | Off | Off | Off | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 255 | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Notes: Node address 0 is used for messaging between |
| nodes and must not be used. A total of 255 node address|
| settings are available. The switches are a binary |
| representation of the decimal node addresses. Switch 1 |
| is the Least Significant Bit and switch 8 is the Most |
| Significant Bit. The switches have the following |
| decimal values: switch 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, |
| 7=64, 8=128. Turn off the switches and add the values |
| of the off switches to obtain the correct node address.|
| (On=0, Off=1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | JP1A | JP1B | JP1C | JP1D | JP1E |
|---------+----------+---------+---------+---------+---------|
| | 2 | Closed | Open | Open | Open | Open |
|---+-----+----------+---------+---------+---------+---------|
| » | 3 | Open | Closed | Open | Open | Open |
|---+-----+----------+---------+---------+---------+---------|
| | 4 | Open | Open | Closed | Open | Open |
|---+-----+----------+---------+---------+---------+---------|
| | 5 | Open | Open | Open | Closed | Open |
|---+-----+----------+---------+---------+---------+---------|
| | 7 | Open | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 |
|-----------+--------+-------+-------+-------+-------+-------|
| | 200h | Off | On | On | On | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 210h | Off | On | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 220h | Off | On | On | On | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 230h | Off | On | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 240h | Off | On | On | Off | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 250h | Off | On | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 260h | Off | On | On | Off | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 270h | Off | On | On | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 280h | Off | On | Off | On | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 290h | Off | On | Off | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2A0h | Off | On | Off | On | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2B0h | Off | On | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2C0h | Off | On | Off | Off | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2D0h | Off | On | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| » | 2E0h | Off | On | Off | Off | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2F0h | Off | On | Off | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 300h | Off | Off | On | On | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 310h | Off | Off | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 320h | Off | Off | On | On | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 330h | Off | Off | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 340h | Off | Off | On | Off | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 350h | Off | Off | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 360h | Off | Off | On | Off | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 370h | Off | Off | On | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 380h | Off | Off | Off | On | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 390h | Off | Off | Off | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3A0h | Off | Off | Off | On | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3B0h | Off | Off | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3C0h | Off | Off | Off | Off | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3D0h | Off | Off | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3E0h | Off | Off | Off | Off | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3F0h | Off | Off | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM ADDRESS |
|------------------------------------------------------------|
| Base | Boot ROM | SW2/7 | SW2/8 | SW2/9 | SW2/10 |
| Address | Address | | | | |
|----------+----------------+-------+-------+-------+--------|
| C0000h | C8000h | Off | Off | On | On |
|----------+----------------+-------+-------+-------+--------|
| D0000h | D8000h | Off | Off | On | Off |
|----------+----------------+-------+-------+-------+--------|
| E0000h | E8000h | Off | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED SETTINGS |
|------------------------------------------------------------|
| Jumper | Setting |
|------------------------------+-----------------------------|
| JP1F | Open |
|------------------------------+-----------------------------|
| JP1G | Open |
+------------------------------------------------------------+