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# AT-LAN-TEC, INC.
8-BIT COAX ARCNET
NIC Type ARCnet
Transfer Rate 2.5Mbps
Data Bus 8-bit ISA
Topology Linear bus
Star
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 | On | On | On | On | On | On | On | Off |
|-----+------+------+------+------+------+------+------+-----|
| 2 | On | On | On | On | On | On | Off | On |
|-----+------+------+------+------+------+------+------+-----|
| 3 | On | On | On | On | On | On | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 4 | On | On | On | On | On | Off | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 251 | Off | Off | Off | Off | Off | On | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 252 | Off | Off | Off | Off | Off | Off | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 253 | Off | Off | Off | Off | Off | Off | On | Off |
|-----+------+------+------+------+------+------+------+-----|
| 254 | Off | Off | Off | Off | Off | Off | Off | On |
|-----+------+------+------+------+------+------+------+-----|
| 255 | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note:Node address 0 is reserved 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 most significant bit and switch|
| 8 the least significant bit. The switches have the |
| following decimal values: switch 1=128, switch 2=64, |
| switch 3=32, switch 4=16, switch 5=8, switch 6=4, switch |
| 7=2, switch 8=1. Turn off the appropriate switches and add|
| the values of the ‘off’ switches to obtain the correct |
| node address. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MEMORY ADDRESS SELECT |
|------------------------------------------------------------|
| RAM | ROM | SW2/4 | SW2/5 | SW2/6 | SW2/7 | SW2/8 |
| Address | Address | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C0000 - | C2000 - | On | On | On | On | On |
| C07FFh | C3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C0800 - | C2000 - | On | On | On | On | Off |
| C0FFFh | C3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C1000 - | C2000 - | On | On | On | Off | On |
| C17FFh | C3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C1800 - | C2000 - | On | On | On | Off | Off |
| C1FFFh | C3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C4000 - | C6000 - | On | On | Off | On | On |
| C47FFh | C7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C4800 - | C6000 - | On | On | Off | On | Off |
| C4FFFh | C7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C5000 - | C6000 - | On | On | Off | Off | On |
| C57FFh | C7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| C5800 - | C6000 - | On | On | Off | Off | Off |
| C5FFFh | C7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| CC000 - | CE000 - | On | Off | On | On | On |
| CC7FFh | CFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| CC800 - | CE000 - | On | Off | On | On | Off |
| CCFFFh | CFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| CD000 - | CE000 - | On | Off | On | Off | On |
| CD7FFh | CFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| CD800 - | CE000 - | On | Off | On | Off | Off |
| CDFFFh | CFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D0000 - | D2000 - | On | Off | Off | On | On |
| D07FFh | D3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D0800 - | D2000 - | On | Off | Off | On | Off |
| D0FFFh | D3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D1000 - | D2000 - | On | Off | Off | Off | On |
| D17FFh | D3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D1800 - | D2000 - | On | Off | Off | Off | Off |
| D1FFFh | D3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D4000 - | D6000 - | Off | On | On | On | On |
| D47FFh | D7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D4800 - | D6000 - | Off | On | On | On | Off |
| D4FFFh | D7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D5000 - | D6000 - | Off | On | On | Off | On |
| D57FFh | D7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D5800 - | D6000 - | Off | On | On | Off | Off |
| D5FFFh | D7FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D8000 - | DA000 - | Off | On | Off | On | On |
| D87FFh | DBFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D8800 - | DA000 - | Off | On | Off | On | Off |
| D8FFFh | DBFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D9000 - | DA000 - | Off | On | Off | Off | On |
| D97FFh | DBFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| D9800 - | DA000 - | Off | On | Off | Off | Off |
| D9FFFh | DBFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| DC000 - | DE000 - | Off | Off | On | On | On |
| DC7FFh | DFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| DC800 - | DE000 - | Off | Off | On | On | Off |
| DCFFFh | DFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| DD000 - | DE000 - | Off | Off | On | Off | On |
| DD7FFh | DFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| DD800 - | DE000 - | Off | Off | On | Off | Off |
| DDFFFh | DFFFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| E0000 - | E2000 - | Off | Off | Off | On | On |
| E07FFh | E3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| E0800 - | E2000 - | Off | Off | Off | On | Off |
| E0FFFh | E3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| E1000 - | E2000 - | Off | Off | Off | Off | On |
| E17FFh | E3FFFh | | | | | |
|----------+---------+-------+-------+-------+-------+-------|
| E1800 - | E2000 - | Off | Off | Off | Off | Off |
| E1FFFh | E3FFFh | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TIMEOUT CONFIGURATION |
|------------------------------------------------------------|
| Response Time( m | Reconfiguration | J1/F | J1/G |
| | Time(msec) | | |
|------------------+-----------------------+--------+--------|
| » | 78 | 840 | Open | Open |
|-------+----------+-----------------------+--------+--------|
| | 285 | 1680 | Open | Closed |
|-------+----------+-----------------------+--------+--------|
| | 563 | 1680 | Closed | Open |
|-------+----------+-----------------------+--------+--------|
| | 1130 | 1680 | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | J1/H |
|---------------------------------+--------------------------|
| » | Disabled | Open |
|---+-----------------------------+--------------------------|
| | Enabled | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS SELECT |
|------------------------------------------------------------|
| Address | SW2/1 | SW2/2 | SW2/3 |
|-------------------+-------------+-------------+------------|
| » | 2E0 - 2EFh | On | Off | On |
|---+---------------+-------------+-------------+------------|
| | 260 - 26Fh | On | On | On |
|---+---------------+-------------+-------------+------------|
| | 290 - 29Fh | On | On | Off |
|---+---------------+-------------+-------------+------------|
| | 2F0 - 2FFh | On | Off | Off |
|---+---------------+-------------+-------------+------------|
| | 300 - 30Fh | Off | On | On |
|---+---------------+-------------+-------------+------------|
| | 350 - 35Fh | Off | On | Off |
|---+---------------+-------------+-------------+------------|
| | 380 - 38Fh | Off | Off | On |
|---+---------------+-------------+-------------+------------|
| | 3E0 - 3EFh | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | J1/A | J1/B | J1/C | J1/D | J1/E |
|-----------+---------+---------+---------+---------+--------|
| » | IRQ3 | Open | Closed | Open | Open | Open |
|---+-------+---------+---------+---------+---------+--------|
| | IRQ2 | Closed | Open | Open | Open | Open |
|---+-------+---------+---------+---------+---------+--------|
| | IRQ4 | Open | Open | Closed | Open | Open |
|---+-------+---------+---------+---------+---------+--------|
| | IRQ5 | Open | Open | Open | Closed | Open |
|---+-------+---------+---------+---------+---------+--------|
| | IRQ7 | Open | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| Note:The 8-bit COAX ARCnet supports either linear bus or |
| star topologies, depending on the version purchased. |
+------------------------------------------------------------+