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XINET XI-286/LS2121

XINETRON, INC.

XINET XI-286/LS2121

Processor

80286

Processor Speed

12MHz

Chip Set

C & T

Max. Onboard DRAM

4MB

SRAM Cache

None

BIOS

Unknown

Dimensions

360mm x 340mm

I/O Options

Arcnet interfaces (BNC and twisted pair), floppy drive interface,

IDE interface, parallel port, serial ports (2), VGA port

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

BNC network interface

C1

Serial port (COM2)

C7

RJ11 network interface

C2

IDE interface

C9

RJ11 network interface

C3

Floppy drive interface

C10

VGA port

C4

External battery

J30

Parallel port

C5

Riser card

R1

Serial port (COM1)

C6

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

Factory configured - do not alter

J3

Unknown

 

Factory configured - do not alter

J5

Unknown

Monitor type select monochrome, EGA/VGA

J8

Open

 

Monitor type select color

J8

Closed

 

Factory configured - do not alter

J11

Unknown

BIOS type select 27128

J13

Open

 

BIOS type select 27256

J13

Closed

 

Factory configured - do not alter

J99

Unknown

Onboard terminator enabled

J109

Open

 

Onboard terminator disabled

J109

Closed

 

Factory configured - do not alter

J205

Unknown

Floppy interface enabled

J306

pins 2 & 3 closed

 

Floppy interface disabled

J306

pins 1 & 2 closed

 

Factory configured - do not alter

J307

Unknown

 

Factory configured - do not alter

J309

Unknown

 

Factory configured - do not alter

J310

Unknown

 

Factory configured - do not alter

J311

Unknown

IDE interface enabled

J312 & J313

pins 2 & 3 closed

 

IDE interface disabled

J312 & J313

pins 1 & 2 closed

Note: If the system is on either end of a linear bus network segment, or used in a star network topology, the onboard terminator may be used instead of an external terminator.

ONBOARD VIDEO CONFIGURATION

Function

J201

J204

Onboard video enabled

pins 2 & 3 closed

pins 2 & 3 closed

 

Onboard video disabled

pins 1 & 2 closed

pins 1 & 2 closed

SERIAL PORT CONFIGURATION

COM1

COM2

J303

J304

J305

Enabled

Enabled

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

 

Enabled

Disabled

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

 

Disabled

Enabled

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

 

Disabled

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

PARALLEL PORT 1 (C3) CONFIGURATION

LPT

J301

J302

LPT 1

pins 1 & 2 closed

pins 2 & 3 closed

 

LPT 2

pins 2 & 3 closed

pins 2 & 3 closed

 

LPT 3

pins 2 & 3 closed

pins 1 & 2 closed

 

Disabled

pins 1 & 2 closed

pins 1 & 2 closed

DRAM CONFIGURATION

Size

J6

J7

J20

Bank 0

Bank 1

512KB

Closed

Closed

Closed

(2) 256K x 9

NONE

1MB

Closed

Open

Closed

(2) 256K x 9

(2) 256K x 9

2MB

Open

Open

Closed

(2) 1M x 9

NONE

4MB

Closed

Closed

Open

(2) 1M x 9

(2) 1M x 9

ARCNET NETWORK INTERFACE CONFIGURATION

Function

J101

J103

J105

J106

J107

J108

BNC connection

Closed

Closed

pins 2 & 3

pins 2 & 3

N/A

N/A

 

Twisted pair (1st pair)

Closed

Closed

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 2 & 3

 

Twisted pair (2nd pair)

Closed

Closed

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

 

Disabled

Open

Open

N/A

N/A

N/A

N/A

ARCNET INTERRUPT REQUEST CONFIGURATION

Setting

J101

IRQ 2

pins 9 & 10 closed

 

IRQ 3

pins 7 & 8 closed

 

IRQ 4

pins 5 & 6 closed

 

IRQ 5

pins 3 & 4 closed

 

IRQ 7

pins 1 & 2 closed

NODE ADDRESS

Node

SW101/1

SW101/2

SW101/3

SW101/4

SW101/5

SW101/6

SW101/7

SW101/8

0

-

-

-

-

-

-

-

-

1

On

On

On

On

On

On

On

Off

2

On

On

On

On

On

On

Off

On

3

On

On

On

On

On

On

Off

Off

4

On

On

On

On

On

Off

On

On

251

Off

Off

Off

Off

Off

On

Off

Off

252

Off

Off

Off

Off

Off

Off

On

On

253

Off

Off

Off

Off

Off

Off

On

Off

254

Off

Off

Off

Off

Off

Off

Off

On

255

Off

Off

Off

Off

Off

Off

Off

Off

Notes: Node address 0 is used for messaging between nodes and must not be used.

A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 8 is the Least Significant Bit and switch 1 is the Most Significant Bit. The switches have the following decimal values: switch 1=128, 2=64, 3=32, 4=16, 5=8, 6=4, 7=2, 8=1. Turn Off the switches and add the values of the Off switches to obtain the correct node address. (On=0, Off=1)

RESPONSE/RECONFIGURATION TIMEOUTS

Response Time

Idle Time

Reconfig. Time

J102/pins 1 & 2

J102/pins 3 & 4

1130 (m)

1237 (m)

1680ms

Closed

Closed

563 (m)

624 (m)

1680ms

Closed

Open

285 (m)

316 (m)

1680ms

Open

Closed

78 (m)

86 (m)

840ms

Open

Open

BASE MEMORY ADDRESS AND BOOT ROM ADDRESS

Base Address

Boot ROM Address

SW102/1

SW102/2

SW102/3

SW102/4

SW102/5

C0000-C07FFh

C2000-C3FFFh

On

On

On

On

On

C0800-C0FFFh

C2000-C3FFFh

Off

On

On

On

On

C1000-C17FFh

C2000-C3FFFh

On

Off

On

On

On

C1800-C1FFFh

C2000-C3FFFh

Off

Off

On

On

On

C4000-C47FFh

C6000-C7FFFh

On

On

Off

On

On

C4800-C4FFFh

C6000-C7FFFh

Off

On

Off

On

On

C5000-C57FFh

C6000-C7FFFh

On

Off

Off

On

On

C5800-C5FFFh

C6000-C7FFFh

Off

Off

Off

On

On

CC000-CC7FFh

CE000-CFFFFh

On

On

On

Off

On

CC800-CCFFFh

CE000-CFFFFh

Off

On

On

Off

On

CD000-CD7FFh

CE000-CFFFFh

On

Off

On

Off

On

CD800-CDFFFh

CE000-CFFFFh

Off

Off

On

Off

On

D0000-D07FFh

D2000-D3FFFh

On

On

Off

Off

On

D0800-D0FFFh

D2000-D3FFFh

Off

On

Off

Off

On

D1000-D17FFh

D2000-D3FFFh

On

Off

Off

Off

On

D1800-D1FFFh

D2000-D3FFFh

Off

Off

Off

Off

On

D4000-D47FFh

D6000-D7FFFh

On

On

On

On

Off

D4800-D4FFFh

D6000-D7FFFh

Off

On

On

On

Off

D5000-D57FFh

D6000-D7FFFh

On

Off

On

On

Off

D5800 D5FFFh

D6000-D7FFFh

Off

Off

On

On

Off

D8000-D87FFh

DA000-DBFFFh

On

On

Off

On

Off

D8800-D8FFFh

DA000-DBFFFh

Off

On

Off

On

Off

D9000-D97FFh

DA000-DBFFFh

On

Off

Off

On

Off

D9800-D9FFFh

DA000-DBFFFh

Off

Off

Off

On

Off

DC000-DC7FFh

DE000-DFFFFh

On

On

On

Off

Off

DC800-DCFFFh

DE000-DFFFFh

Off

On

On

Off

Off

DD000-DD7FFh

DE000-DFFFFh

On

Off

On

Off

Off

DD800-DDFFFh

DE000-DFFFFh

Off

Off

On

Off

Off

E0000-E07FFh

E2000-E3FFFh

On

On

Off

Off

Off

E0800-E0FFFh

E2000-E3FFFh

Off

On

Off

Off

Off

E1000-E17FFh

E2000-E3FFFh

On

Off

Off

Off

Off

E1800-E1FFFh

E2000-E3FFFh

Off

Off

Off

Off

Off

BASE MEMORY ADDRESS CONFIGURATION

Address

SW102/6

SW102/7

SW102/8

260-26Fh

Off

Off

Off

290-29Fh

On

Off

Off

2E0-2EFh

Off

On

Off

2F0-2FFh

On

On

Off

300-30Fh

Off

Off

On

350-35Fh

On

Off

On

380-38Fh

Off

On

On

3E0-3EFh

On

On

On