INFORMTECH INTERNATIONAL, INC.

IT-NE20/IT-NE20T

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

16-bit ISA

Topology

Linear Bus

Wiring Type

AUI transceiver via DB-15 port

RG58A/U 50ohm coaxial

Unshielded twisted pair

Boot ROM

Available

INTERRUPT SELECT

IRQ

JP6/A

JP6/B

JP6/C

JP6/D

JP6/E

JP6/F

»

Closed

Open

Open

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

Open

Open

 

IRQ4

Open

Open

Closed

Open

Open

Open

 

IRQ5

Open

Open

Open

Closed

Open

Open

 

IRQ6

Open

Open

Open

Open

Closed

Open

 

IRQ7

Open

Open

Open

Open

Open

Closed

CABLE TYPE SELECT

LAN Type

JP9/A

JP9/B

JP9/C

JP9/D

JP9/E

JP9/F

AUI transceiver via DB-15 port

All open

All open

All open

All open

All open

All open

RG58A/U 50ohm coaxial

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Unshielded twisted pair

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Note: All Pins designated should be placed in the closed position. IT-NE20 has a BNC connector, IT-NE20T has a RJ11.

I/O BASE ADDRESS SELECT

Address

JP7/A

JP7/B

JP7/C

»

300h

Closed

Open

Closed

 

200h

Open

Open

Open

 

240h

Open

Closed

Open

 

280h

Closed

Closed

Open

 

2A0h

Open

Open

Closed

 

320h

Closed

Open

Open

 

340h

Open

Closed

Closed

 

360h

Closed

Closed

Closed

ROM ADDRESS SELECT

Address

JP8/A

JP8/B

JP8/C

JP8/D

JP8/E

JP8/F

JP8/G

JP8/H

»

C8000h

Open

Open

Closed

Open

Open

Open

Open

Open

 

C0000h

Closed

Open

Open

Open

Open

Open

Open

Open

 

C4000h

Open

Closed

Open

Open

Open

Open

Open

Open

 

CC000h

Open

Open

Open

Closed

Open

Open

Open

Open

 

D0000h

Open

Open

Open

Open

Closed

Open

Open

Open

 

D4000h

Open

Open

Open

Open

Open

Closed

Open

Open

 

D8000h

Open

Open

Open

Open

Open

Open

Closed

Open

 

DC000h

Open

Open

Open

Open

Open

Open

Open

Closed