SMA Sensorbox - Manual (Page 46)

Startup SMA Solar Technology AG
46 Sensorbox-IEN100914 Installation Guide
21. If necessary, connect another Sunny SensorBox or RS485 bus node (see pages 46 or 50).
22. Check the RS485 cabling plan poster to find out whether the terminating resistor has to be
plugged into the "RS485 F2: OUT" terminal.
23. Close the Sunny SensorBox (see page 61).
☑ The RS485 Power Injector is connected to the Sunny SensorBox.
7.5.4 Connecting the Sunny SensorBox to another Sunny
SensorBox
You can add an additional Sunny SensorBox to the Sunny SensorBox. If you do add another one,
note that you can use the RS485 Power Injector to supply power to up to five Sunny SensorBoxes in
total.
Connection to an Installed Sunny SensorBox
1. Open the Sunny SensorBox (see page 61).
2. Remove the termination resistor for "F2: OUT RS485"
on the installed Sunny SensorBox.
NOTICE!
Damage to the Sunny SensorBox caused by metal or cable scraps left inside the
device.
• When working on the cable, make sure that no metal scraps from the cable shield or
cable itself fall into the Sunny SensorBox while it is open. Remove any metal or cable
scraps if present.