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ETHERNIC/2000

IMC NETWORK CORPORATION

ETHERNIC/2000

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

8/16-bit ISA

Topology

Linear Bus

Wiring Type

RG--58A/U 50ohm coaxial

RG--62A/U 93ohm coaxial

75ohm coaxial

AUI transceiver via DB-15 port

Boot ROM

Available

INTERRUPT REQUEST

IRQ

JP1A

JP1B

JP1C

JP1D

JP1E

JP1F

JP1G

JP1H

 

2/9

Open

Open

Open

Closed

Open

Open

Open

Open

3

Closed

Open

Open

Open

Open

Open

Open

Open

 

4

Open

Closed

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Closed

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Closed

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Open

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Open

Open

Open

Closed

Note:If a Boot ROM is installed, see the I/O base address & Boot ROM address table for valid interrupt settings.

COMPATIBILITY MODE

Setting

JP2A

JP2B

Disabled

Closed

Open

 

Enabled

Open

Closed

Note:On some systems the data bus timing is not truly IBM PC/AT compatible. If the card is not initializing enabling compatibility mode may allow the card to operate properly.

DATA BUS SIZE

Setting

JP2C

Autosense

Closed

 

8-bit

Open

Note:In autosense mode the card automatically detects if it is in a 16-bit or 8-bit slot. On some Rev. 01 cards this jumper is incorrectly labeled TURBO.

I/O BASE ADDRESS & BOOT ROM ADDRESS

I/O Address

Boot ROM Address

JP3A

JP3B

JP3C

 

200

N/A

Open

Open

Open

 

220

N/A

Closed

Open

Open

 

240

N/A

Open

Closed

Open

 

260

N/A

Closed

Closed

Open

300

C8000h (IRQ3)

Open

Open

Closed

 

320

CC000h (IRQ5)

Closed

Open

Closed

 

340h

D0000h (IRQ4)

Open

Closed

Closed

 

360h

N/A

Closed

Closed

Closed

Note:If a boot ROM is to be installed one of the I/O address configurations with a boot ROM address must be used and the indicated IRQ must be set.

BOOT ROM

Setting

JP3D

Disabled

Closed

 

Enabled

Open

CABLE TYPE

Type

S2

S3

S4

RG--58A/U 50ohm coaxial

Installed

Open

50ohm (P/N 90-39050)

 

RG--62A/U 93ohm coaxial

Installed

Open

93ohm (P/N 90-39093)

 

75ohm coaxial

Installed

Open

75ohm (P/N 90-39075)

 

AUI transceiver via DB-15 port

Open

Installed

N/A

Note:S2 and S3 are sockets for a transformer chip while S4 is a socket for a Cabling Option Resistor Kit (CORK). To choose a cable type insert the appropriate chips into the appropriate sockets. All cards on the network segment must use the same type of coaxial cable.