What you can get off the shelf is a Cisco console cable - this has a 9-pin serial connector on one end to go into your computer, and an 8P8C modular plug to go into the console port on a Cisco switch. Now you can make a simple adapter by cutting a 568-B patch cable in half, and punching the wires down on a 568-B keystone jack. Patch cable goes into the Admin jack on the Partner, Cisco cable goes into the Keystone, and into your computer


[Linked Image from i.imgur.com]