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# GATEWAY COMMUNICATIONS, INC.
G/EtherNet 8 Adapter (NATIONAL CHIPSET)
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 8-bit ISA
Topology Linear Bus
Wiring Type RG-58A/U 50ohm coaxial
AUI transceiver via DB-15 port
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | JP1 | JP2 | JP3 | JP4 | JP5 | JP6 |
|------+--------+--------+--------+--------+--------+--------|
| | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
|----------------+----------+----------+----------+----------|
| | 280-29Fh | On | On | On | On |
|---+------------+----------+----------+----------+----------|
| » | 2A0-2BFh | On | Off | On | On |
|---+------------+----------+----------+----------+----------|
| | 2C0-2DFh | On | On | Off | On |
|---+------------+----------+----------+----------+----------|
| | 2E0-2FFh | On | Off | Off | On |
|---+------------+----------+----------+----------+----------|
| | 300-31Fh | On | On | On | Off |
|---+------------+----------+----------+----------+----------|
| | 320-33Fh | On | Off | On | Off |
|---+------------+----------+----------+----------+----------|
| | 340-35Fh | On | On | Off | Off |
|---+------------+----------+----------+----------+----------|
| | 360-37Fh | On | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE MEMORY ADDRESS |
|------------------------------------------------------------|
| Base Address | SW1/5 | SW1/6 |
|------------------------+-----------------+-----------------|
| | C0000-C3FFF | On | On |
|---+--------------------+-----------------+-----------------|
| | C4000-C7FFF | Off | On |
|---+--------------------+-----------------+-----------------|
| | C8000-CBFFF | On | Off |
|---+--------------------+-----------------+-----------------|
| » | CC000- CFFFF | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | JP7 | JP8 | JP9 | JP10 |
|------------------------+--------+--------+--------+--------|
| » | RG-58A/U 50ohm | Pins 1 | Pins 1 | Pins 1 | Pins 1 |
| | coaxial | & 2 | & 2 | & 2 | & 2 |
|----+-------------------+--------+--------+--------+--------|
| | AUI transceiver | Pins 2 | Pins 2 | Pins 2 | Pins 2 |
| | via DB-15 port | & 3 | & 3 | & 3 | & 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS NOTES |
|------------------------------------------------------------|
| Different drivers must be used for the National & the |
| Fujitsu chipset cards, & are not interchangeable. Fujitsu |
| adapters may be used for either 8 or 16 bit Fujitsu cards. |
| While the National chipset cards require a different |
| driver for an 8 or 16 bit card. |
+------------------------------------------------------------+