thank you , may be PM for what you did? I have spare USB mini cables, have keystone , and punch tool (i did my own cat5/6 when did wiring for my house). I ordered the cable from ebay as backup option, however it would not be here for 4-6 days and am willing to try the homemade optionYou really don't have to solder this I did it with a keystone jack (home depot if necessary) and I didn't even punch the cables in. I literally just punched them in with a small piece of plastic. A junk USB mini cable to sacrifice and a keystone. Super simple you'll be amazed.
trying to understand end to now how it would work
a) usb mini cable, cut it to expose wires
b) punch it down to RJ45 keystone jack as described here ( DIY Mini-USB Serial Dongle | ServeTheHome Forums )
c) connect the usb mini into 7250 and connect what to do RJ45 jack just created? a standard cisco serial cable?
thank you!