[Elecraft] K3 Cabling Questions

[John Silva N3AM]

While I await delivery of my K3 I want to make some cables for FSK 
keying and my Top Ten Band Decoder.  Does anyone have a schematic for 
these cables?  Since multiple functions are handled by the ACC 
connector, would it be advisable to use a junction box, or just run 
multiple cables into the ACC connector?

Are the RS-232 and ACC connectors on the back of the K3 both female?

One other question:  what is the RJ-45 connector on the bottom of the 
K3 used for?


Thanks,
John N3AM