Please note on some platforms do use any production servers for configuration or testing Cisco switches. In particular do not use Windows Servers to connect to the console port on Cisco switch for configuration. Under certain circumstances this may cause your sever to be unstable.
Basically you should not use any production server for anything other than what they are meant for since you will always be taking a risk. I have seen clients use their severs for basic things such as browsing and ended up with viruses that have brought down their networks. I recently had a client that was using a server to connect to Cisco Switch console. Apparently, there was something wrong with the serial port(hardware), plugging the cable in to the serial port caused a blue screen which resulted in corrupted files on the OS.
But, do you know...
If you have a "bad home-made" cable, and you connect it to the com port on working machine. Try to guess what happens to your power supply
A frind of mine made an error by the soldering for an AVR ISP für Atmega-Board, that used SR323 to connect to the PC, and ... Surprise, he had to go to the shop for anoder power supply.
I always connect my linux servers to the console port of the switch and routers. It may not be the best however budget and resource constrants often get in the way of the perfict network setup. I haven't had a problem with it so far. Use Cisco brand console cables.