ALTA RESEARCH CORPORATION

ETHERCOMBO-16+T/C/A

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

16-bit ISA

Topology

Star

Wiring Type

AUI transceiver via DB-15 port

Shielded/Unshielded twisted pair

RG58A/U 50ohm coaxial

Boot ROM

Available

BOOT ROM

Setting

J7

»

Disabled

Open

 

Enabled

Closed

BOOT ROM ADDRESS

Boot ROM Address

J5

J6

»

C800h

Open

Open

 

CC00h

Closed

Open

 

D000h

Open

Closed

 

D400h

Closed

Closed

BUS WIDTH

Bus

J15

»

16-bit

Open

 

8-bit

Closed

BUS COMPATIBILITY

CHRDY

J16

»

From Strobes (Motherboard uses VLSI chipset)

Open

 

From BALE (Motherboard uses C & T chipset)

Closed

CABLE TYPE

Type

J2

J3

»

RG58A/U 50ohm coaxial

Closed

Open

 

AUI transceiver via DB-15 port

Open

Closed

 

Unshielded twisted pair

Open

Open

 

Unshielded twisted pair extended mode

Closed

Closed

CONFIGURATION SETTING

Configuration

J1

»

Via Software

Closed

 

Via Hardware

Open

I/O BASE ADDRESS

Address

J9

J10

J11

»

300h - 31Fh

Open

Open

Open

 

240h - 25Fh

Open

Closed

Open

 

280h - 29Fh

Closed

Closed

Open

 

2C0h - 2DFh

Open

Open

Closed

 

320h - 33Fh

Closed

Open

Closed

 

340h - 35Fh

Open

Closed

Closed

 

360h - 37Fh

Closed

Closed

Closed

INTERRUPT REQUEST

IRQ

J12

J13

J14

»

3

Open

Open

Open

 

2/9

Closed

Closed

Open

 

4

Closed

Open

Open

 

5

Open

Closed

Open

 

10

Open

Open

Closed

 

11

Closed

Open

Closed

 

12

Open

Closed

Closed

 

15

Closed

Closed

Closed

READ ACCESS SELECTION

Setting

J6

»

I/O port

Open

 

Shared memory

Closed

Note:I/O port must be selected when using the Novell NE2000 driver. Shared memory must be used when using WD/SMC8013. Boot PROMS will not operate in the Shared Memory mode.

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Green

On

Twisted pair network is valid

LED1

Green

Off

Twisted pair network connection is broken

LED2

Red

On

Data is being transmitted or received

LED2

Red

Off

Data is not being transmitted or received

LED3

Red

On

Collision detected on network

LED3

Red

Off

No collisions detected on network

LED4

Red

On

Twisted pair polarity reversed and corrected

LED4

Red

Off

Twisted pair polarity correct