Assembled data cable. Pre-assembled cable, PAC, LiYY cable, 0.25 mm². The pre-assembled PAC cables establish the electrical and logical connection between the PLC and the PLC interfaces. These cables consist of the following elements: PLC connection of the manufacturer. Multi-pole LIYY or LY YCY (shielded) cable with 0.14 mm² or 0.25 mm² cross-section. SubD or RSV connector, for connection to the interface. The cables are automatically tested for continuity and insulation to guarantee the special functionality for which they have been designed.