NATIONAL SEMICONDUCTOR CORPORATION

ETHERNODE 16AT-T

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

8/16-bit ISA

Topology

Linear Bus

Wiring Type

Unshielded twisted pair

AUI transceiver via DB-15 port

Boot ROM

Available

CARD IDENTIFICATION NUMBER

Number

JP1A

JP1B

JP1C

JP1D

»

1

Open

Open

Open

Closed

 

2

Open

Open

Closed

Open

 

3

Open

Closed

Open

Open

 

4

Closed

Open

Open

Open

Note: Up to four NICs can be installed in a single system. If more than one card is installed, each card must have a different Identification number.

LINK INTEGRITY TEST

Setting

W3

»

Enabled

Pins 2 & 3 closed

 

Disabled

Pins 1 & 2 closed

Note: The link integrity test is only valid when the cable type is unshielded twisted pair.

NETWORK SEGMENT LENGTH NOTES

The segment length is automatically detected and configured on this card, but may not be on other cards on the network segment. All NICs on the network segment must have this option set the same.

DATA BUS SPEED NOTES

On some systems the data bus timing is not truly IBM PC/AT compatible. If the card is not initializing, Changing the data bus speed from 'Normal' to 'Fast' may allow the card to operate properly. To change the data bus speed you must use the ICRCNFIG utility that comes with the card.

BOOT ROM/CHECKPOINT SECURITY CHIP NOTES

The boot ROM socket accepts an 8K boot ROM or a CheckPoint security chip. The CheckPoint security chip supplies virus protection, access control, and access logging functions.

DIAGNOSTIC LED(S)

Color

Status

Condition

Green

On

Twisted pair network connection is good

Green

Off

Twisted pair network connection is broken

Red

On

Data is being transmitted or received

Red

Off

Data is not being transmitted or received