Elecraft K3S wiring - Radio side

[IK2NCA]

Hi all. I need some help to build cables for a K3S system.
On the control side I've a K3/0-mini with Octopus Cable so easy ... 

On the radio side I need wiring scheme for cables.
Looking at page.16
https://ftp.elecraft.com/K3-Remote/Manuals%20Downloads/K3%20Remote%20Owner's%20Manual%20%20Rev%20D.pdf

I'm struggling with the:
RRC RJ45 [AUX/MIC] to K3S [MIC/PTT]
RRC DB9 [COM2] to K3S [RS232 ... RJ45 in my case, not DB9]
RRC RJ45 [I/O] to K3S DB15 [ACC]

tnx in advance.