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G/ETHERTWIST 8 ADAPTER

GATEWAY COMMUNICATIONS, INC.

G/ETHERTWIST 8 ADAPTER

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

8-bit ISA

Topology

Linear Bus

Star

Wiring Type

Shielded twisted pair

Unshielded twisted pair

AUI transceiver via DB-15 port

Boot ROM

Available

INTERRUPT REQUEST

IRQ

JP2A

JP2B

JP2C

JP2D

JP2E

JP2F

3

Open

Closed

Open

Open

Open

Open

 

2

Closed

Open

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

CABLE TYPE

Type

JP4

RG-58A/U 50ohm coaxial

Pins 1 & 2 Closed

 

AUI transceiver via DB-15 port

Pins 2 & 3 Closed

LINK INTEGRITY TEST

Setting

JP5

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.

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

On

Off

Off

Off

BOOT ROM ADDRESS

Address

SW1/5

SW1/6

CC000-CFFFFh

Off

Off

 

C0000-C3FFFh

On

On

 

C4000-C7FFFh

Off

On

 

C8000-CBFFFh

On

Off

DIAGNOSTIC LED(S)

LED

Status

Condition

1

On

Card is sending random data (Jabbering)

1

Off

Card is configured correctly and is operating normally

2

On

Network connection is good 1

2

Off

Card is not connected to network 1

2

On

Link test is disabled 2

2

Blinking

Disabled the link test signal 3

3

Blinking

Data is being transmitted

3

Off

Data is not being transmitted

4

Blinking

Data is being received

4

Off

Data is not being received

Note 1 :Used when the Link Test signal is enabled (JP5)

Note 2 :LED remains on when the Link Test signal is disabled (JP5)

Note 3 :When the Link Test signal is enabled and the card is connected to a hub that does not use the

Link Test signal, the user should disable the Link Test signal.

FACTORY CONFIGURED SETTINGS - DO NOT ALTER

Jumper

Setting

JP1

Unknown (Used for Channel configuration)

Note:Link Integrity is only used with 10Base-T wiring. When using an AUI transciever, the test should be disabled.

MISCELLANEOUS NOTES

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.