HwMuseum | Index

COGENT DATA TECHNOLOGIES, INC.

E/MASTER I-AT

NIC Type

Ethernet

Transfer Rate

10Mbps

Data Bus

16-bit ISA

Topology

Linear Bus

Wiring Type

RG58A/U 50ohm coaxial

AUI transceiver via DB-15 port

Boot ROM

Available

CABLE TYPE SELECTION

Type

JP1/A-F

JP2

»

RG58A/U 50ohm coaxial

Pins 2 & 3 closed

Pins 2 & 3 closed

 

AUI transceiver via DB-15 port

Pins 1 & 2 closed

Pins 1 & 2 closed

INTERRUPT REQUEST SELECTION

IRQ

JP3A

JP3B

JP3C

JP3D

JP3E

JP3F

JP3G

JP3H

JP3I

JP3J

»

10

Open

Open

Open

Open

Closed

Open

Open

Open

Open

Open

 

2/9

Open

Open

Open

Open

Open

Closed

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Open

Open

Open

Open

Closed

 

4

Open

Open

Open

Open

Open

Open

Open

Open

Closed

Open

 

5

Open

Open

Open

Open

Open

Open

Open

Closed

Open

Open

 

7

Open

Open

Open

Open

Open

Open

Closed

Open

Open

Open

 

11

Open

Open

Open

Closed

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

Open

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

Open

Open

Open

Open

DMA CHANNEL SELECTION

Channel

JP4A

JP4B

JP4C

JP5A

JP5B

JP5C

»

DMA5

Closed

Open

Open

Closed

Open

Open

 

DMA6

Open

Closed

Open

Open

Closed

Open

 

DMA7

Open

Open

Closed

Open

Open

Closed

Note:Each E/MASTER II in the server must have a unique DMA setting.

BOOT ROM SIZE SELECTION

Size

JP6

»

8KB

Pins 2 & 3 closed

 

16KB

Pins 1 & 2 closed

CLOCK SELECTION

Select

JP7

»

Clock on E/MASTER adapter (10MHz)

Pins 1 & 2 closed

 

Clock on the host bus

Pins 2 & 3 closed

BOOT ROM ADDRESS SELECTION

Address

JP13

JP14

JP15

JP16

JP17

JP18

»

D8000h

Pins 1 & 2

Pins 2 & 3

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

 

C0000h

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

 

C8000h

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

 

D0000h

Pins 1 & 2

Pins 2 & 3

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

 

E0000h

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

Pins 2 & 3

 

E8000h

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Note:Pins designated should be in the closed position.

SA 19-17 LINE CONFIGURATION

Setting

JP30

»

SA 19-17 lines enabled

Pins 1 & 2 closed

 

SA 19-17 lines disabled

Pins 2 & 3 closed

AUI GROUND CONFIGURAION

Setting

JP40

»

Unused shield pins on AUI connector grounded

Closed

 

Unused shield pins on AUI connector not grounded

Open

FACTORY CONFIGURED SETTINGS - DO NOT ALTER

Jumper

Setting

JP8

Pins 1 & 2 closed

JP9

Pins 1 & 2 closed

JP10

Pins 2 & 3 closed

JP11

Pins 2 & 3 closed

JP12

Pins 1 & 2 closed