kPU 
Base 
Units 
I 
The  CPU base units are for  mounting the  CPU  module, 
1 
power supply  module, 
and a number of 
110 
modules. The number 
of 
I/O 
modules that can be mounted 
on 
to the CPU base unit is dependent 
on 
the model number 
of 
the unit selected.  Like 
the CPU module, each system requires one CPU base  unit. Below is 
a 
list of the 
different CPU base unit models; 
I 
Model 
No. 
AI 5326 
I 
CPU base unit with spare 
I/O 
slots for 2 
110 
modules. 
External dimensions, 
220 
mm 
x 
130 mm 
x 
28 mm (8.66 in 
x 
5.12 in 
x 
1.10 
in). 
Manual Reference No.  IB(NA) 66320, AlSCPU User's Manual 
1Model 
No. 
AlS33B 
I 
CPU base unit with spare 110  slots for 
3 
I/O 
modules. 
External dimensions, 255 mm 
x 
130 mm 
x 
28 mm (10.04 in 
x 
5.12 in 
x 
1.10 in). 
Manual Reference No.  IB(NA) 66320, AlSCPU 
User's 
Manual 
8