SMA SSM8-21-BS - Manual (Page 35)

SMA Solar Technology AG 6 Electrical Connection
Installation Manual SSMxx-21-IA-BS-JP-en-20 35
Preparing the Data Cables
Requirement:
☐ The data cables must be routed into the Sunny String-Monitor through cable glands (see Section 6.2, page 23).
Additionally required mounting material (not included in the scope of delivery):
☐ Conductive adhesive foil
Procedure:
1. Dismantle the data cables by 100 mm.
2. Fold the surplus cable shield of the data cables back over the
cable sheath.
3. Wrap the cable shield in conductive adhesive foil.
Connecting the Data Cables to the Connectors
Pin assignment in the connector
Procedure:
1. Strip off the insulated conductors of the data cables by 10 mm.
2. Remove the connectors from the customer terminals -X712 and -X713.
Voltage supply to the Sunny String-Monitors
To minimize voltage drops between the separate Sunny String-Monitors, one insulated conductor pair must be
assigned to each of the pins for voltage supply.
Pin Assignment
1 GND_EXT
2 RS485L
3 RS485H
4 +60V_EXT