6 Connection
SMA Solar Technology AG
Operating manual
EDML-10-BE-en-13
31
Interference in data transmission due to unshielded power cables
If unshielded power cables are used, they generate an electromagnetic field during operation
which may induce interference in network cables during data transmission.
• When laying network cables without separating strip, observe a minimum clearance of
200 mm (8 in) to unshielded energy cables.
• When laying network cables with separating aluminum strip, observe a minimum
clearance of 100 mm (4 in) to unshielded energy cables.
• When laying network cables with separating steel strip, observe a minimum clearance of
50 mm (2 in) to unshielded energy cables.
Additionally required material (not included in the scope of delivery):
☐ One or two network cables
Network cable requirements:
The cable length and quality affect the quality of the signal. Observe the following cable
requirements:
☐ Cable type: 100BaseTx
☐ Cable category: minimum CAT5e
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6 or Cat6a (Cat7 plugs cannot be used)
☐ Shielding: S/UTP, F/UTP or higher
☐ Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x
0.22 mm² (2 x 2 x 24 AWG)
☐ Maximum cable length between 2 nodes when using patch cables: 50 m (164 ft)
☐ Maximum cable length between 2 nodes when using installation cables: 100 m (328 ft)
☐ UV-resistant for outdoor use.
Connect the network communication with internal nodes:
SMA Solar Technology AG recommends using the network port
LAN1
for the network
communication with internal nodes (e.g. inverter and energy meter). Network port
LAN1
is
preconfigured with the static IP address 172.16.1.22.
Procedure:
1. Plug the RJ45 plug of the network cable into the
network port
LAN1
until the RJ45 plug snaps into
place.
LAN2
LAN1
2
1
P1 RS-232/422/485
P2 RS-232/422/485
USB2.0
HDMI
3
4
2. Connect the other end of the network cable to the network.