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DESCRIPTION AND OPERATION
IIOIS12 FUNCTIONAL OPERATION
I-E96-107-2N
2 - 3
Logic Power
An internal power supply converts the AC input to the DC volt-
ages needed to power the IIOIS12 electronics (+5,
±
12 VDC).
Multibus Chassis
The INFI 90 OPEN six-slot multibus chassis provides housing
and power for the Multibus Network Interface Unit (NIU) cards
and Multibus Keyboard Module card.
Figure 2-2. IIOIC12 Block Diagram
NETWORK CARD
OIS12
ADP
LPT1 PRINTER
'AT' KEYBOARD
RS 232
IIMKM01
KEYBOARD
CRT
GRAPHICS CARD
AT BUS
CPU (486) (min.)
AT BUS
MOUSE
PC CHASSIS
Note 1
Note 1: 5.0 Release Only
DRIVE
FLOPPY DISK
IDE
HARD DISK
Note 2
Note 2: 5.1 Release
GS940120