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Overview
Copyright © Huawei Technologies Co., Ltd. 2020.
All rights reserved.
• The information in this document is subject to change due to version upgrade or
other reasons. Every effort has been made in the preparation of this document
to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind,
express or implied. You can download this document by scanning the QR code.
• Operation personnel should understand the composition and working principles
of the grid-tied PV power system and local regulations.
(1) LED indicators (RUN, ALM)
(2) Mounting ear
(3) Guide rail clamp
(4) COM ports (COM1, COM2, COM3)
(5) DI ports (DI)
(6) 12 V output power port (12V/GND)
(7) AI ports (AI)
(8) Potential transformer (PT) ports (PT1, PT2)
(9) Protective ground point
(10) 12 V input power port (DC IN 12V, 1A)
(11) 24 V input power port (DC IN 24V, 0.8A)
(12) GE ports (GE1, GE2, GE3, GE4)
(13) RST button (RST)
• Before installing the device, closely read the user manual to get familiar with product
information and safety precautions. Huawei shall not be liable for any consequence caused by
violation of the storage, installation, and operation regulations specified in this document and
the user manual.
• Use insulated tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
