SMA Wireless-Set485-01 - Manual (Page 18)

Electrical Connection SMA Solar Technology AG
18 WirelessSet485-IEN091511 Installation Guide
5.4 Connecting the RS485 Power Injector
5.4.1 Connecting the Inverter to the RS485 Power Injector
RS485 Power Injector
1. Remove around 4 cm of the cable sheath at the end
of the communication cable.
2. Shorten the shielding to 1.5 cm, fold it back, and
wrap it with conductive adhesive foil.
3. Connect the leads to the clamps (Data+, Data--,
GND) on the plug for the RS485 Power Injector. Data+ and Data-- must be a twisted lead pair.
4. Note the connection and lead color:
2 Data+ _____________________
7 Data-- _____________________
5 GND _____________________
5. Plug the plug into the RS485 Power Injector input port (IN).
NOTICE!
Danger of short circuit when connecting the RS485 Power Injector.
Install the RS485 Power Injector directly before the load (which will be supplied with +12 V).