SMA AUTOMATIC SWITCH BOX M - Manual (Page 30)

Electrical Connection SMA Solar Technology AG
30 AS-BoxM-IEN091711 Installation Guide
Connection Procedure
1. Select suitable for the cable of the feed-in signal and poke a hole in it with a pointy device.
The cable has to be tightly enclosed by the cable gland after insertion.
2. Pull the cable through the opening into the Automatic Switch Box.
3. Connect PE to the "X7/Feed-In Signal" connection terminal according to the label.
4. Connect the cables to "IN" and "L1".
☑ The external signal for battery feed-in is now connected.