Communications Port Pin Denitions
● When laying out a signal cable, separate it from power cables and keep it away
from strong interference sources to prevent communication interruption.
● Ensure that the signal cable jacket is inside the connector and surplus core
wires are cut o ush with the edge of the cable jacket. Insert the exposed core
wires completely into the conductor insertion points. Ensure that the cable is
connected securely.
Figure 5-7 Pin denitions
Table 5-3 Pin denitions
Pin
Denition Function Description
1 GND Ripple Control Used for connecting to
GND of DIN1–DIN5
2 DIN1 Dry contact for grid
scheduling
3 DIN2
4 DIN3
5 DIN4
6 DIN5 Rapid shutdown signal
+
Used for the rapid
shutdown DI signal or
connecting to the signal
cable of an NS protection
device
7 GND GND -
8 - - -
SUN2000-(12KTL-25KTL)-M5 Series
User Manual 5 Electrical Connections
Issue 10 (2024-05-14) Copyright © Huawei Digital Power Technologies Co., Ltd. 43
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