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2-1
Section
Expansion I/O Unit with Transistor Outputs
1. Input connector
3. Input indicators
4. Output indicators
2. Output connector
Front View
Right Side
6. Expansion I/O
connector (output)
5. Expansion I/O
connector (input)
1, 2, 3...
1. Input Terminals/Connector
Connects the CPU Unit to external input devices.
2. Output Terminals/Connector
Connects the CPU Unit to external output devices.
3. Input Indicators
The input indicators are lit when the corresponding input terminal is ON.
Note Input indicators will reflect the status of the corresponding inputs
even when the PC is stopped, but the corresponding input bits will not
be refreshed.
4. Output Indicators
The output indicators are lit when the corresponding output terminal is ON.
5. Expansion I/O Connector (Input)
Connects the Expansion I/O Unit to the CPU Unit or the last Expansion I/O
Unit connected.
Note The indicators are lit during I/O refreshing. The status of an output in-
dicator will also reflect the status of the corresponding output when
the output is being used as a pulse output.
6. Expansion I/O Connector (Output)
Connects the Expansion I/O Unit to the next Expansion I/O Unit, if neces-
sary. Up to 5 Expansion I/O Units can be connected to a CPU Unit.
A cover for the Expansion I/O Connector is not included with the Expansion
I/O Unit. Use the cover included with the CPU Unit to cover the unused Ex-
pansion I/O Connector on the last Expansion I/O Unit in the PC.
Содержание CPM2C
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