124Chapter 12 Data CommunicationData Communications Between Two PV UnitsThis section describes how to set up and communicate between two PV Units.• You must purchase a separately available SB-305 serial cable, and SB-90connector/cable set to connect two PV Units.To connect two PV Units1. Make sure that the power of both units is turned off.2. Connect the cable to the cable connectors of each of the PV Units asdescribed below.• Connect the optional SB-305 serial cable to your PV-S1600.• Connect the cable that comes with the other PV Unit to the other PVUnit.3. Use an optional SB-90 9-9 pin connector to connect the two cables toeach other.• All data communication settings must be made on one of the PV Unitsonly. This unit is called the host unit, while the other unit is called theterminal unit.SB-90 9-9 pin connectorHost unit Terminal unitSB-305 serial cable
