7
2-1-1 CPU Unit Components
The following diagram shows the basic components of the CPU Unit that are
used in general operation of the PC.
Lock the CPU Unit to
the adjacent Unit.
Indicators
RS-232C Port (except CQM1-CPU11-E)
Used for communications with external devices or other PCs.
Peripheral Port
Used to connect to Peripheral Units such as a Program-
ming Console, Data Access Console, or a computer
running LSS/SSS.
DIP switch
Battery
Memory
cassette
(optional)
Pulse I/O connectors (CQM1-CPU43-EV1 only);
ABS interface connectors (CQM1-CPU44-EV1 only)
Analog setting controls
(CQM1-CPU42-EV1 only)
CPU Unit Section 2-1
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