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# AMERICAN RESEARCH CORPORATION
ETHERFLEX PLUS 8B, PCN014
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 8-bit ISA
Topology Star
Linear Bus
Wiring Type Unshielded twisted pair
RG-58A/U 50ohm coaxial
AUI transceiver via DB-15 port
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
|--------------+-----------+-----------+----------+----------|
| | 200h | On | On | On | On |
|---+----------+-----------+-----------+----------+----------|
| | 220h | Off | On | On | On |
|---+----------+-----------+-----------+----------+----------|
| | 240h | On | Off | On | On |
|---+----------+-----------+-----------+----------+----------|
| | 260h | Off | Off | On | On |
|---+----------+-----------+-----------+----------+----------|
| » | 280h | On | On | Off | On |
|---+----------+-----------+-----------+----------+----------|
| | 2A0h | Off | On | Off | On |
|---+----------+-----------+-----------+----------+----------|
| | 2C0h | On | Off | Off | On |
|---+----------+-----------+-----------+----------+----------|
| | 2E0h | Off | Off | Off | On |
|---+----------+-----------+-----------+----------+----------|
| | 300h | On | On | On | Off |
|---+----------+-----------+-----------+----------+----------|
| | 320h | Off | On | On | Off |
|---+----------+-----------+-----------+----------+----------|
| | 340h | On | Off | On | Off |
|---+----------+-----------+-----------+----------+----------|
| | 360h | Off | Off | On | Off |
|---+----------+-----------+-----------+----------+----------|
| | 380h | On | On | Off | Off |
|---+----------+-----------+-----------+----------+----------|
| | 3A0h | Off | On | Off | Off |
|---+----------+-----------+-----------+----------+----------|
| | 3C0h | On | Off | Off | Off |
|---+----------+-----------+-----------+----------+----------|
| | 3E0h | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | SW1/5 |
|---------------------------------+--------------------------|
| » | Disabled | Off |
|---+-----------------------------+--------------------------|
| | Enabled | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM ADDRESS |
|------------------------------------------------------------|
| Address | SW1/6 | SW1/7 | SW1/8 | SW1/9 |
|----------------+----------+----------+----------+----------|
| | C0000h | On | On | On | On |
|---+------------+----------+----------+----------+----------|
| | C4000h | On | On | On | Off |
|---+------------+----------+----------+----------+----------|
| | C8000h | On | On | Off | On |
|---+------------+----------+----------+----------+----------|
| | CC000h | On | On | Off | Off |
|---+------------+----------+----------+----------+----------|
| | D0000h | On | Off | On | On |
|---+------------+----------+----------+----------+----------|
| | D4000h | On | Off | On | Off |
|---+------------+----------+----------+----------+----------|
| | D8000h | On | Off | Off | On |
|---+------------+----------+----------+----------+----------|
| » | DC000h | On | Off | Off | Off |
|---+------------+----------+----------+----------+----------|
| | E0000h | Off | On | On | On |
|---+------------+----------+----------+----------+----------|
| | E4000h | Off | On | On | Off |
|---+------------+----------+----------+----------+----------|
| | E8000h | Off | On | Off | On |
|---+------------+----------+----------+----------+----------|
| | EC000h | Off | On | Off | Off |
|---+------------+----------+----------+----------+----------|
| | F0000h | Off | Off | On | On |
|---+------------+----------+----------+----------+----------|
| | F4000h | Off | Off | On | Off |
|---+------------+----------+----------+----------+----------|
| | F8000h | Off | Off | Off | On |
|---+------------+----------+----------+----------+----------|
| | FC000h | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RAM BUFFER SIZE |
|------------------------------------------------------------|
| Size | JP1 | JP8 | JP11 | JP12 |
|----------+------------+------------+-----------+-----------|
| » | 8KB | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & | Pins 2 & |
| | | Closed | Closed | 3 Closed | 3 Closed |
|---+------+------------+------------+-----------+-----------|
| | 32KB | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & | Pins 1 & |
| | | Closed | Closed | 2 Closed | 2 Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | JP2 - JP7 | JP9 | JP10 |
|------------------------+-----------+-----------+-----------|
| Unshielded twisted | Pins 2 & | Pins 1 & | Pins 1 & |
| pair | 3 Closed | 2 Closed | 2 Closed |
|------------------------+-----------+-----------+-----------|
| AUI transceiver via | Pins 1 & | Pins 2 & | Pins 2 & |
| DB-15 port | 2 Closed | 3 Closed | 3 Closed |
|------------------------+-----------+-----------+-----------|
| RG-58A/U 50ohm coaxial | Pins 1 & | Pins 1 & | Pins 1 & |
| | 2 Closed | 2 Closed | 2 Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | JP13A | JP13B | JP13C | JP13D | JP13E | JP13F |
|------+--------+--------+--------+--------+--------+--------|
| | 2 | Closed | Open | Open | Open | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
|»| 3 | Open | Closed | Open | Open | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 4 | Open | Open | Closed | Open | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 5 | Open | Open | Open | Closed | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 6 | Open | Open | Open | Open | Closed | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 7 | Open | Open | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED SETTINGS |
|------------------------------------------------------------|
| Switch | Setting |
|------------------------------+-----------------------------|
| SW1/10 | Open |
+------------------------------------------------------------+