This article applies to the CoolMaster EDGEToshiba VRF – Service Adapter connectionAdapters should be installed on the master outdoor of each systemEach adapter should be set with a unique address using the dip switches as shown in the drawingMaximum service adapters per line is limited to 8It is best practice but not a must to set the adapter address the same as the system address it is connected toGPIO terminals on the adapter are not in use