SMA SB7.7-1SP-US-40 - Connecting the Gateway; Connection

5 Connection
SMA Solar Technology America LLC
Installation manual RoofCommKit-P2-US-IA-xx-10 17
5 Connection
5.1 Connecting the Gateway
Requirements:
☐ If several Gateways are present in the system, these have to be connected to each other prior
connection to the module in the inverter.
☐ A maximum of threeGateways can be connected to one module in the inverter.
☐ A terminator must be plugged into the last gateway in the row.
Cabling plan of the Gateways:
B A
_
+B A
_
+ B A
_
+ B A
_
+B A
_
+ B A
_
+
B A
_
+B A
_
+
+− B A S
Figure 5 : Cabling plan of the Gateways with module in the inverter
Cable requirements:
☐ 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)
☐ The conductor must be shielded.
☐ The conductors must be twisted-pair.
☐ UV-resistant for outdoor use
☐ The conductors lengths in the inverter must be as short as possible. This prevents contact with
live conductors.
☐ If the conductor is to be installed without conduit, the conductor has to be suited for outdoor
use.
☐ If the conductor is to be installed in a conduit together with live conductors, the conductor has
to be insulated for 600V.
ENGLISH