GATEWAY COMMUNICATIONS, INC.
G/ETHERTWIST AT, AT-WS ADAPTER (NATIONAL CHIPSET)
|
NIC Type |
Ethernet |
|
Transfer Rate |
10Mbps |
|
Data Bus |
16-bit ISA |
|
Topology |
Star |
|
Wiring Type |
Shielded twisted pair Unshielded twisted pair AUI transceiver via DB-15 port |
|
Boot ROM |
Available |
|
INTERRUPT REQUEST | |||||||||||
|
IRQ |
JP3 |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 |
JP9 |
JP10 |
JP11 |
JP12 | |
|
3 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open | |
|
15 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
12 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
11 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
10 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open | |
|
7 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
6 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
5 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
4 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open | |
|
2 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed | |
|
I/O BASE ADDRESS | |||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 | |
|
2A0-2BF |
On |
Off |
On |
On | |
|
280-29F |
On |
On |
On |
On | |
|
2C0-2DF |
On |
On |
Off |
On | |
|
2E0-2FF |
On |
Off |
Off |
On | |
|
300-31F |
On |
On |
On |
Off | |
|
320-33F |
On |
Off |
On |
Off | |
|
340-35F |
On |
On |
Off |
Off | |
|
360-37F |
Off |
On |
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 | |
|
LINK INTEGRITY TEST | ||
|
Setting |
JP31 | |
|
Enabled |
Pins 1 & 2 Closed | |
|
Disabled |
Pins 2 & 3 Closed | |
|
Note:Link Integrity is only used with 10Base-T wiring. When using an AUI transciever, the test should be disabled. | ||
|
COMPATIBILITY | ||
|
Mode |
JP2 | |
|
Compatibility on |
Pins 1 & 2 Closed | |
|
Compatibility off |
Pins 2 & 3 Closed | |
|
Note: If one of the following problems presist after checking all other possibilities turn off Compatibility:
| ||
|
CABLE TYPE | |||||||
|
Type |
JP8 |
JP9 |
JP10 |
JP11 |
JP12 |
JP13 | |
|
AUI transceiver via DB-15 port |
Pins 2 & 3 |
Pins 2 & 3 |
Pins 2 & 3 |
Pins 2 & 3 |
Pins 2 & 3 |
Closed | |
|
Shielded/Unshielded twisted pair |
Pins 1 & 2 |
Pins 1 & 2 |
Pins 1 & 2 |
Pins 1 & 2 |
Pins 1 & 2 |
Open | |
|
Note: Pins designated should be in the closed position. | |||||||
|
DIAGNOSTIC LED(S) | |
|
Status |
Condition |
|
Jabber LED (1) on (Red) |
Adapter is continually sending random data |
|
Link test LED (2) on (Red) |
Network connection good |
|
Transmit LED (3) blinks (Red) |
Data is being transmitted |
|
Receive LED (4) on (Red) |
Data is being received |
|
Note: When using the AUI port, the LEDs are not functional. | |
|
MISCELLANEOUS NOTES |
|
The AT adapter can be used in a file server or a work station. The AT-WS adapter can be used in a work station only. Different drivers must be used for the National & the Fujitsu chipset cards, they are not interchangeable. Fujitsu drivers 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. |