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BTC1901

BEHAVIOR TECH COMPUTER CORPORATION

BTC1901

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

CONNECTIONS

Function

Location

40-pin AT Interface (IDE) connector-internal

CN1

34-pin control cable connector-floppy disk

CN2

16-pin game port-internal

CN3

9-pin serial port (COM2/4)-internal

CN4

9-pin serial port (COM1/3)-external

CN5

Parallel port (LPT1/2)-external

CN6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

IRQ7 (LPT1 interrupt request)

J2

pins 1 & 2 closed

 

IRQ5 (LPT2 interrupt request)

J2

pins 2 & 3 closed

CN5 is set to COM1

J3

pins 1 & 2 closed

 

CN5 is set to COM3

J3

pins 2 & 3 closed

CN4 is set to COM2

J4

pins 1 & 2 closed

 

CN4 is set to COM4

J4

pins 2 & 3 closed

CN6 is set to LPT1

J5

pins 1 & 2 closed

 

CN6 is set to LPT2

J5

pins 2 & 3 closed

COM1/3 enabled

J6

closed

 

COM1/3 disabled

J6

open

COM2/4 enabled

J7

closed

 

COM2/4 disabled

J7

open

LPT1/2 enabled

J8

closed

 

LPT1/2 disabled

J8

open

Hard drive enabled

J9

closed

 

Hard drive disabled

J9

open

Floppy address 3F0-3F7h

J10

open

 

Floppy address 370-377h

J10

closed