Monitoring industrial equipment on an Android tablet

I own a small company, and I normally use a laptop with Windows 7 to control some equipment. I was wondering if it would be possible to use a tablet to do the job. I have an Archos 101, and my machines use standard serial RS232 to communicate. Are there any adapters (preferably USB) that both the Archos tablet and Android will recognise? If not, is there any other way to make this happen?
