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PTM-1260B

DTK COMPUTERS, INC.

PTM-1260B

Processor

80286

Processor Speed

12MHz

Chip Set

VLSI

Max. Onboard DRAM

1MB

Cache

None

BIOS

DTK

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, hard drive interface, parallel port, serial ports (2), video port

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Hard drive 1 data cable connector

CN1

Parallel port

CN9

Hard drive 1 data cable connector

CN2

Power LED & keylock

JP1

Hard drive interface

CN3

Speaker

JP3

Floppy drive interface

CN4

Turbo LED

JP4

Serial port 2

CN5

Turbo switch

JP5

Video port

CN7

IDE interface LED

JP12

Serial port 1

CN8

External battery

JP20

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP2

N/A

Zero wait state enabled

JP8

Closed

 

One wait state enabled

JP8

Open

Primary hard drive address is 1F0h - 1F7h

JP13

pins 2 & 3 closed

 

Secondary hard drive address is 170h - 177h

JP13

pins 1 & 2 closed

Primary floppy drive address is 3F0h - 3F7h

JP13

pins 5 & 6 closed

 

Secondary floppy drive address is 370h - 37Fh

JP13

pins 4 & 5 closed

BIOS type select 32KB

JP14

Open

 

BIOS type select 64KB

JP14

Closed

Factory configured - do not alter

JP15

N/A

Monochrome display primary

JP22

Open

 

CGA display primary

JP22

Closed

FLOPPY DRIVE CONFIGURATION

Drive

JP16

JP17

JP18

Enabled

Closed

Closed

Closed

 

Disabled

Open

Open

Open

PRIMARY SERIAL PORT CONFIGURATION

Port 1 (CN8)

JP24

JP26

COM1

Closed

Closed

COM3

Open

Open

Disabled

Closed

Open

Disabled

Open

Closed

SECONDARY SERIAL PORT CONFIGURATION

Port 2 (CN5)

JP25

JP27

COM2

Closed

Closed

COM4

Open

Open

Disabled

Open

Closed

Disabled

Closed

Open

PARALLEL PORT CONFIGURATION

LPT

JP19

JP23

JP28

LPT1

pins 1 & 2 closed

Closed

Closed

LPT2

pins 2 & 3 closed

Open

Open

Disabled

N/A

Open

Closed

Disabled

N/A

Closed

Open

DRAM CONFIGURATION

Size

Bank 0

Parity 0

Bank 1

Parity 1

512KB

(4) 44256

(2) 41256

NONE

NONE

640KB

(4) 44256

(2) 41256

(4) 4464

(2) 4164

1MB

(4) 44256

(2) 41256

(4) 44256

(2) 41256

Note:The exact locations of bank 0 and bank 1 are unknown.

DRAM JUMPER CONFIGURATION

Size

JP9

JP10

512KB

Closed

Closed

640KB

Open

Closed

1MB

Open

Open