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2.
Keep the pairs twisted until the wires need to be separated for pin
connection.
This ensures a more consistent signal through the cable.
NOTE:
It is especially important to keep the pairs with the blue wire
twisted together. Because there are two blue wires in the cable, you might
get them mixed up unless you keep them twisted with their pair up until
you punch them down into the connector.
3.
Secure the wires tightly into the pin connector using either a punch
down tool or the integrated tool on the side of the NPU cover (see
picture below).
Nokia RoofTop™ Wireless Router Installation Guide