SMA SUNNY BOY 1.5 - Connecting the Network Cables

6.5 Connecting the Network Cables
Danger to life due to electric shock
Overvoltages (e.g. in the case of a flash of lightning) can be further conducted into the building
and to other connected devices in the same network via the network cable if there is no
overvoltage protection.
• Ensure that all devices in the same network are integrated in the existing overvoltage
protection.
• When laying the network cable outdoors, attention must be given to suitable overvoltage
protection at the network cable transition from the inverter outdoors to the network inside the
building.
• The Ethernet interface of the inverter is classified as "TNV-1" and offers protection against
overvoltages up to 1.5kV.
Additionally required material (not included in the scope of delivery):
☐ 1 network cable
☐ Where required: Field-assembly RJ45 connector for the network cable. SMA Solar
Technology AG recommends the connector "MFP8 T568 A Cat.6A" from "Telegärtner".
Cable requirements:
The cable length and quality affect the quality of the signal. Observe the following cable
requirements.
☐ Cable type: 100BaseTx
☐ Cable category: Cat5, Cat5e, Cat6, Cat6a or Cat7
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6 or Cat6a
☐ Shielding: SF/UTP, S/UTP, SF/FTP or S/FTP
☐ Number of insulated conductor pairs and insulated conductor cross-section: at least
2x2x0.22mm²
☐ Maximum cable length between two nodes when using patch cables: 50m
☐ Maximum cable length between two nodes with installation cable: 100m
☐ UV-resistant for outdoor use
Procedure:
1. When using a self-assembly network cable, assemble the RJ45 connector and connect to the
network cable (see connector documentation).
2. Remove the swivel nut from the cable gland for the network connection on the connection cap.
3. Thread the swivel nut over the network cable.
6 Electrical Connection
SMA Solar Technology AG
Operating Manual 35SB15-25-1VL-40-BE-en-11