Panasonic KX-TDE100 Installation Manual page 254

3.13.1 Connection of Peripherals
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Clear To Send (CTS):...(input)
An ON condition of circuit CS (CTS) indicates that the printer or the PC is ready to receive data from the
unit. The unit does not attempt to transfer data or receive data when circuit CS (CTS) is OFF.
•
Frame Ground (FG)
Connects to the unit frame and the earth ground conductor of the AC power cord.
254 Installation Manual