i have two devices, but don't want to transfer contacts from one to the other

I've logged on to my second device using my existing Blackberry ID. It seems I am unable to maintain two discrete devices - rather my contacts etc. are constantly transferring back and forth (and in the process being removed from one of the devices). How can I avoid this?

Have you tried to save your contacts to your SD Card?
Or you can get one of the contact apps in BBW to have them on both phones. I'm sure there are better ones out there, but I have used both InTouchApp Contacts and Contacts Pro In Blackberry World.