SMA Wireless-Set485-01 - Manual (Page 22)

Electrical Connection SMA Solar Technology AG
22 WirelessSet485-IEN091511 Installation Guide
5.4.4 Connecting the Radio Module to the RS485 Power Injector
Radio Module
1. Remove around 4 cm of cable sheath at the radio
module end of the communication cable.
2. Shorten the shielding.
3. Connect the leads to the clamps (Data+, Data--,
GND, +12V) on the plug for the radio module.
4. Note connection and lead color:
Data+ _____________________
Data-- _____________________
GND _____________________
+12V _____________________
5. Plug the plug into the radio module as shown in
figure (A).
6. Plug the terminal plug into the radio module as
shown in figure (B).
RS485 Power Injector
7. Remove around 4 cm of the cable sheath at the
RS485 Power Injector end of the communication
cable.
8. Shorten the shielding to 1.5 cm, fold it back, and
wrap it with conductive adhesive foil.
9. Connect the leads to the clamps (Data+, Data--, GND, +12V) on the plug for the RS485 Power
Injector. Data+ and Data– must be a twisted lead pair (see point 4).
10. Plug the plug into the RS485 Power Injector output port (OUT).
You have successfully connected the radio module to the RS485 Power Injector.
5.4.5 Affixing the Shield Clamp
Push the foil-covered shielding of the two cables on the
RS485 Power Injector into the shield clamp.
A B