You will find the NW Installation Guide here:

https://www.dell.com/support/home/de-de/product-support/product/networker/docs

Even if you look at the latest NW version, the differences to earlier versions are minimal.

In general you first have to install the appropriate NW software packages. Then you define the appropriate remote device(s) at this node.

More details only make sense after you stated the OS as well as the hardware type you need to add. The NW version could also help.