HwMuseum | Index

NCR CORPORATION

16-08-01

Data bus: 16-bit, ISA

Size: Full-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

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

CONNECTIONS

Function

Location

34-pin control cable connector-floppy drive

CN1

40-pin IDE (AT) Interface connector-internal

CN5

4-pin connector-drive active LED

CN6

26-pin dual serial port connector-internal

CN8

25-pin parallel port (LPT1/2)-external

CN14

15-pin VGA connector-external

CN401

DUAL SERIAL PORT CONNECTOR (CN8) PIN ASSIGNMENT

Serial Port 1

Serial Port 2

Signal

15

23

Carrier Detect (CD)

5

6

Receive Data (RxD)

3

2

Transmit Data (TxD)

14

10

Data Terminal Ready (DTR)

13

21

Signal Ground

11

4

Data Set Ready (DSR)

7

12

Request To Send (RTS)

9

25

Clear To Send (CTS)

18

8

Ring Indicator (RI)

22

22

Keyed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

IRQ14 cleared after read block (SW1/switch 8 must be on)

JP201

1 & 2 closed

 

IRQ14 does not clear after read block

JP201

2 & 3 closed

»

Floppy drive controller enabled

SW1/switch 1

on

 

Floppy drive controller disabled

SW1/switch 1

off

»

Hard drive port address is 1F0-1F7h

SW1/switch 2

off

 

Hard drive port address is 170-177h

SW1/switch 2

on

»

Parallel Port enabled

SW1/switch 3

off

 

Parallel Port disabled

SW1/switch 3

on

»

Parallel Port (CN14) is LPT1 (378h)

SW1/switch 4

off

 

Parallel Port (CN14) is LPT1 (278h)

SW1/switch 4

on

»

Serial Port 1 set to COM1 (3F8h)

SW1/switch 5

off

 

Serial Port disabled

SW1/switch 5

on

»

Serial Port 2 set to COM2 (2F8h)

SW1/switch 6

off

 

Serial Port disabled

SW1/switch 6

on

»

Interface Pin 34 Not used

SW1/switch 7

off

 

Ground (GND) enabled on Interface pin 34

SW1/switch 7

on

»

Hard drive controller enabled

SW1/switch 8

off

 

Hard drive controller disabled

SW1/switch 8

on

»

Factory configured - do not alter

SW401/switch 1

on

»

Factory configured - do not alter

SW401/switch 2

on

»

AT BIOS compatible

SW401/switch 3

on

 

PS/2 BIOS compatible

SW401/switch 3

off

»

Standard VGA mode

SW401/switch 4

on

 

Multisync VGA mode

SW401/switch 4

off

»

VGA controller enabled

SW401/switch 5

on

 

VGA controller disabled

SW401/switch 5

off

»

Standard Interrupt Handling

SW401/switch 6

off

 

Special Application Interrupt

SW401/switch 6

on