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MAINLINK II

QUADRAM

MAINLINK II

Card Type

Network (terminal emulator)

NIC Type

Proprietary (3270 network with 3278/9 terminator emulator)

Maximum Onboard Memory

Unidentified

Boot ROM

Available

Network Transfer Rate

Unidentified

Topology

Linear Bus (microcomputer to mainframe)

Wiring Type

Proprietary coaxial

Data Bus

8-bit ISA

Card Size

Unidentified

CONNECTIONS

Function

Label

BNC connector

CN1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Not used

SW1/1

Off

Slot 8 disabled - PC AT mode

SW1/2

Off

 

Slot 8 enabled - PC XT mode

SW1/2

On

PROM memory window enabled

SW1/3

On

 

PROM memory window disabled

SW1/3

Off

MEMORY ADDRESS SELECTION FOR THE PC, XT & AT

ADDRESS HEX

SW1/4

SW1/5

SW1/6 SW1/7 SW1/8

C0000h-C1FFFh

On

On

On

On

On

C2000h-C3FFFh

Off

On

On

On

On

C4000h-C5FFFh

On

Off

On

On

On

C6000h-C7FFFh

Off

Off

On

On

On

C8000h-C9FFFh

On

On

Off

On

On

CA000h-CBFFFh

Off

On

Off

On

On

CC000h-CDFFFh

On

Off

Off

On

On

D0000h-D1FFFh

On

On

On

Off

On

D2000h-D3FFFh

Off

On

On

Off

On

D4000h-D5FFFh

On

Off

On

Off

On

D6000h-D7FFFh

Off

Off

On

Off

On

D8000h-D9FFFh

On

On

Off

Off

On

DA000h-DBFFFh

Off

On

Off

Off

On

DC000h-DDFFFh

On

Off

Off

Off

On

DE000h-DFFFFh

Off

Off

Off

Off

On

E0000h-E1FFFh

On

On

On

On

Off

E0000h-E3FFFh

Off

On

On

On

Off

E4000h-E5FFFh

On

Off

On

On

Off

E6000h-E7FFFh

Off

Off

On

On

Off

E8000h-E9FFFh

On

On

Off

On

Off

EA000h-EBFFFh

Off

On

Off

On

Off

EC000h-EDFFFh

On

Off

Off

On

Off

EE000h-EFFFFh

Off

Off

Off

On

Off

Note: Addresses in the range from C0000h-EE000h are for AT only.