Hello Abeelash,
That’s a nice diagram, and your steps 1, 2, 3 are correct.
The next step is to enable power over Ethernet output on the Aux port like this:
If this is successful, you should see a blue LED illuminated inside the cnPulse. You’ll have to leave one of the glands off to see this from the outside.
You are correct in what you’ve done with the dongle. Fit the two resistors and leave the rest of the pins unconnected. The resistors indicate to the PTP 670 that the cnPulse is a PoE Powered Device. This is part of the IEEE 802.3 standard, and it prevents a PoE power supply from applying power to a regular Ethernet interface.
Mark