Figure 5-5 Cable connections (congure the components in the dotted box as
required)
Table 5-1 Components
No.
Component Description Source
A PV string ● PV strings consist of PV modules in
series.
● A solar inverter supports 20 PV
string inputs.
Prepared by the
customer
B Environmental
monitoring instrument
(EMI)
● When the SmartLogger is used, the
EMI can be directly connected to the
SmartLogger or connected to the
last solar inverter cascaded over
RS485.
● When the SDongle is used, the EMI
is a cascaded device that needs to be
connected to the solar inverter
where the SDongle is installed.
Prepared by the
customer
C SmartLogger The solar inverter communicates with
the management system through the
SmartLogger.
Purchased from
Huawei
SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual 5 Electrical Connections
Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd. 42
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