Thank you for your question on intercom systems. You cannot use the transformer from an IM4006 with the NM200 system. When you update the IM4006 to the NM200 system, you will need to change out everything (master, master rough-in, all remotes and door stations) except wiring. Please contact the Technical Service Department at 888-336-6151 for further assistance.
Date published: 2016-09-06