119Chapter 9 Data CommunicationData Communications Between a PV Unit anda BN UnitThis section describes how to set up and communicate between a PV Unit and aBN Unit (BN-10/BN-20 or BN-10A/BN-20A/BN-40A).To connect a PV Unit to a BN Unit1. Make sure that the power of both units is turned off.2. Open the cover of the Mini Cradle port of the BN Unit, and connect itsMini Cradle to the port.3. Place the PV Unit onto its cradle.• Gently but firmly press down on the PV Unit to ensure that it is insertedinto the cradle as far as it will go.4. Use an optional SB-90 9-9 pin connector to connect the PV Unit cradleto the BN Unit Mini Cradle.• All data communication settings must be made on the PV Unit, which isthe host unit. The BN Unit is the terminal unit.Off EscLightMenuSchedulerContactsMemo QuickMemo Menu BerSTART buttonMini CradleCradleSB-90 9-9 pin connectorHost unit (PV Unit) Terminal unit (BN Unit)