HwMuseum | Index

LOMAS DATA PRODUCTS, INC.

LDP CACHE IV

Data bus:

16-bit, ISA

Size:

Full-length, full-height card

Hard drive supported:

Up to seven SCSI devices

Floppy drives supported:

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS

Function

Location

50-pin SCSI connector - internal

J1

25-pin SCSI II connector - external (optional feature)

J2

34-pin control cable connector - floppy drive

J3

2-pin connector - Error LED

J4

20-pin factory test connector - internal

J5

2-pin connector - Drive active LED

J6

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Floppy drive enabled

JP1

closed

 

Floppy drive disabled

JP1

open

»

BIOS enabled

JP8

closed

 

BIOS disabled

JP8

open

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

I/O port address is 320h (primary)

JP9

closed

 

I/O port address is 324h (secondary)

JP9

open

»

Controller supplies TERMPWR to SCSI interface 26

JP10

closed

 

TERMPWR not supplied to SCSI Interface 26

JP10

open

»

1x9 SIMM module configuration enabled

JP11

pins 1 & 2 closed

 

4x9 SIMM module configuration enabled

JP11

pins 2 & 3 closed

»

Error LED status software interrogation enabled

JP12

pins 1 & 2 closed

 

Error LED status software interrogation disabled

JP12

pins 2 & 3 closed

»

Interrupt Request is IRQ14

JP13

pins 1 & 2 closed

 

Interrupt Request is IRQ15

JP13

pins 2 & 3 closed

BIOS ADDRESS

Address

Jumper JP6

Jumper JP7

»

C800h

closed

closed

 

CA00h

open

closed

 

D000h

closed

open

 

D800h

open

open

MISCELLANEOUS TECHNICAL NOTES

Jumper JP2 is factory configured -- do not alter.

If secondary I/O port address is enabled, configure JP13 to pins 2 & 3 closed -- IRQ15 enabled.