[Elecraft] Ham Radio Deluxe Connection?

[jrb]

Hello All-

Pardon my ignorance, but I've been using HRD with my other radios.

I'm aware that the K2/100 is supported, but don't see how or where  
the cable would plug in to the radio.
The cable I'm using for my Icoms has serial on the computer end and a  
1/8" mono plug on the radio end.

What kind of cable is needed? Obviously serial
on the computer end.

A part number (Mouser, RS, Digikey,etc.) would be most appreciated.

TIA

Jeff

KG6ZVT