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# AMERICAN RESEARCH CORPORATION
ETHERFLEX 8B, PCN012
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 8-bit ISA
Topology Star
Linear Bus
Wiring Type Unshielded twisted pair
RG58A/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 | SW1/5 |
|------------+---------+---------+---------+--------+--------|
| | 200h | Off | On | On | On | On |
|---+--------+---------+---------+---------+--------+--------|
| | 220h | Off | On | On | On | Off |
|---+--------+---------+---------+---------+--------+--------|
| | 240h | Off | On | On | Off | On |
|---+--------+---------+---------+---------+--------+--------|
| | 260h | Off | On | On | Off | Off |
|---+--------+---------+---------+---------+--------+--------|
| | 280h | Off | On | Off | On | On |
|---+--------+---------+---------+---------+--------+--------|
| | 2A0h | Off | On | Off | On | Off |
|---+--------+---------+---------+---------+--------+--------|
| | 2C0h | Off | On | Off | Off | On |
|---+--------+---------+---------+---------+--------+--------|
| | 2E0h | Off | On | Off | Off | Off |
|---+--------+---------+---------+---------+--------+--------|
| » | 300h | Off | Off | On | On | On |
|---+--------+---------+---------+---------+--------+--------|
| | 320h | Off | Off | On | On | Off |
|---+--------+---------+---------+---------+--------+--------|
| | 340h | Off | Off | On | Off | On |
|---+--------+---------+---------+---------+--------+--------|
| | 360h | Off | Off | On | Off | Off |
|---+--------+---------+---------+---------+--------+--------|
| | 380h | Off | Off | Off | On | On |
|---+--------+---------+---------+---------+--------+--------|
| | 3A0h | Off | Off | Off | On | Off |
|---+--------+---------+---------+---------+--------+--------|
| | 3C0h | Off | Off | Off | Off | On |
|---+--------+---------+---------+---------+--------+--------|
| | 3E0h | Off | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | SW1/6 |
|---------------------------------+--------------------------|
| » | Disabled | Off |
|---+-----------------------------+--------------------------|
| | Enabled | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM ADDRESS |
|------------------------------------------------------------|
| Address | SW1/7 | SW1/8 | SW1/9 | SW1/10 |
|---------------+----------+----------+----------+-----------|
| | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | JP3 - JP8 | JP10 & JP11 |
|------------------------+-----------------+-----------------|
| » | Unshielded twisted | Pins 1 & 2 | Pins 2 & 3 |
| | pair | Closed | Closed |
|---+--------------------+-----------------+-----------------|
| | RG-58A/U 50ohm | Pins 2 & 3 | Pins 1 & 2 |
| | | Closed | Closed |
|---+--------------------+-----------------+-----------------|
| | DIX transceiver | Pins 2 & 3 | Pins 2 & 3 |
| | via DB-15 | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL |
|------------------------------------------------------------|
| Channel | JP9A | JP9B | JP9C | JP9D |
|-------------+-----------+-----------+-----------+----------|
| » | DMA1 | Open | Closed | Open | Closed |
|---+---------+-----------+-----------+-----------+----------|
| | DMA3 | Closed | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | JP9G | JP9H | JP9I | JP9J |
|-----------+------------+-----------+-----------+-----------|
| » | 2 | Open | Open | Open | Closed |
|---+-------+------------+-----------+-----------+-----------|
| | 3 | Open | Open | Closed | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 4 | Open | Closed | Open | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 5 | Closed | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED SETTING |
|------------------------------------------------------------|
| Mode | Setting |
|----------------------------+-------------------------------|
| JP9E | Open |
|----------------------------+-------------------------------|
| JP9F | Open |
+------------------------------------------------------------+