Yamas Environmental Systems, Inc. represents several legacy TAC controls systems including the Barber-Coleman Network 8000 and Robertshaw DMS systems. We have the unique ability to seamlessly integrate your existing Network 8000 or DMS system with the I/A Series network controller and user interface using technology only available to TAC partners. An I/A Series integration can provide significant savings compared to complete system replacement because you can continue to use all existing field devices and communications infrastructure, but will get all of the features and benefits offered by the latest I/A Series platform.