UUP1 and UUP2 are "unused pair" 1 and 2. When using a standard CAT5 cable, these pairs are connected to the two unused pairs in the 4 pair (8 wire) cable.
NOTE: Standard CAT5 design practice is to terminate these pairs on the PCB to reduce noise. When using a 2 pair cable, these pins are left unconnected in the cable.
There are two types of RJ-45 Cables:
Depending on the type of SynqNet controller and SynqNet Motion Block being connected, one of the following two type
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