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Can we use the cable VW3A1104R30 instead of LU9R03 & vice versa ?

The pin configuration of both cables are different. 

VW3A1104R30 - is used for connecting the HMI unit with LTMR or the Graphic Display (HMI) with Drive(Altivar VFD). It has the wiring for transferring data & control supply for the display. 

LU9R03 - is the cable to connect the LTMR controller with LTME extension module. It has wiring only for transferring the data. 

If you interchange the cable, the device will not function. Hence we insist to use the correct part reference as per the catalog for proper functioning of the device, also to avoid damage to the modules
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