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# STANDARD MICROSYSTEMS CORPORATION
ARCNET PC550
NIC Type ARCnet
Transfer Rate 2.5Mbps
Data Bus 16-bit ISA
Topology Star
Wiring Type Unshielded twisted pair
Boot ROM Not available
IMG IMG 1
+------------------------------------------------------------+
| NODE ADDRESS |
|------------------------------------------------------------|
|Node |SW3/1 |SW3/2 |SW3/3 |SW3/4 |SW3/5 |SW3/6 |SW3/7 |SW3/8|
|-----+------+------+------+------+------+------+------+-----|
| 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 |
|------------------------------------------------------------|
|Note: 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) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
|-----------+--------+-------+-------+-------+-------+-------|
| ยป | 300h | On | On | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 200h | On | On | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 210h | Off | On | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 220h | On | Off | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 230h | Off | Off | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 240h | On | On | Off | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 250h | Off | On | Off | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 260h | On | Off | Off | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 270h | Off | Off | Off | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 280h | On | On | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 290h | Off | On | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2A0h | On | Off | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2B0h | Off | Off | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2C0h | On | On | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2D0h | Off | On | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2E0h | On | Off | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 2F0h | Off | Off | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 310h | Off | On | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 320h | On | Off | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 330h | Off | Off | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 340h | On | On | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 350h | Off | On | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 360h | On | Off | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 370h | Off | Off | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 380h | On | On | On | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 390h | Off | On | On | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3A0h | On | Off | On | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3B0h | Off | Off | On | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3C0h | On | On | Off | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3D0h | Off | On | Off | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3E0h | On | Off | Off | Off | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3F0h | Off | Off | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED SETTINGS |
|------------------------------------------------------------|
| Switch | Setting |
|------------------------------+-----------------------------|
| SW2/1 | On |
|------------------------------+-----------------------------|
| SW2/2 | On |
|------------------------------+-----------------------------|
| SW2/3 | Off |
|------------------------------+-----------------------------|
| SW2/4 | On |
|------------------------------+-----------------------------|
| SW2/5 | On |
|------------------------------+-----------------------------|
| SW2/6 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | SW1/7 | SW1/8 | SW1/9 | SW1/10 |
|----------+------------+-----------+-----------+------------|
| 2/9 | Off | On | On | Off |
|----------+------------+-----------+-----------+------------|
| 3 | Off | Off | On | On |
|----------+------------+-----------+-----------+------------|
| 4 | On | On | Off | On |
|----------+------------+-----------+-----------+------------|
| 5 | Off | On | Off | On |
|----------+------------+-----------+-----------+------------|
| 7 | Off | Off | Off | On |
|----------+------------+-----------+-----------+------------|
| 10 | On | Off | On | Off |
|----------+------------+-----------+-----------+------------|
| 11 | Off | Off | On | Off |
|----------+------------+-----------+-----------+------------|
| 12 | On | On | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+-------+----------+----------------------------------|
| LED1 | Green | On | Data is being transmitted or |
| | | | received |
|------+-------+----------+----------------------------------|
| LED1 | Green | Blinking | Network is reconfiguring |
|------+-------+----------+----------------------------------|
| LED2 | Red | On | I/O bus activity detected |
|------+-------+----------+----------------------------------|
| LED2 | Red | Off | No I/O bus activity detected |
+------------------------------------------------------------+