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What port of the CNC system is connected to an external computer to send or receive programs?

(A) SR-323

(B) RS-323

(C) SR-232

(D) RS-232  

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Answer: (D) RS-232

Question Answer Analysis:

The RS-232 port of the numerical control system is connected to an external computer and can send or receive programs.

In CNC machine tool control technology and systems, the RS-232C port of the CNC system can be connected to an external computer for sending or receiving programs.

The RS-232C port is a standard interface for numerical control systems that can be connected to an external computer via a serial communication line. 

Through the RS-232C port, numerical control systems and external computers can realize data exchange and program transmission.

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