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Huawei SMU01B Genuine Telecom Hardware Shot 1
HuaweiModel: SMU01B

Huawei SMU01B Site Power System Intelligent Monitoring Unit (Dot-Matrix LCD/Dry Contacts)

The Huawei SMU01B is a carrier-grade intelligent site monitoring unit designed for -48V DC telecommunication power systems, providing unified supervisory control, telemetry, and fault management across rectifiers, battery banks, and AC/DC power distribution sub-assemblies.

Pricing is confirmed by project configuration and quantity

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What this product is

What this product is

At the hardware and architectural level, the SMU01B functions as the central management controller for Huawei ETP power subracks. It integrates an isolated CAN bus controller for high-speed digital communications with rectifier modules, high-precision analog-to-digital converters (ADCs) for bus and battery string sensing, configurable digital inputs and dry-contact alarm relays (DI/DO), an interactive multi-language dot-matrix LCD, and firmware compliant with standard Modbus and Huawei master-slave telemetry protocols.

What problem it solves

The unit eliminates catastrophic field risks including irreversible battery degradation caused by deep discharge events (via dual-stage LLVD and BLVD contactor coordination), battery thermal runaway (via ambient temperature compensation), and service downtime resulting from unmanaged rectifier load unbalance or silent AC phase dropouts.

Who and where it is for

Standard installation in Huawei ETP4830, ETP4890, and ETP48150 power systems deployed in wireless base transceiver stations (BTS), cellular macro sites, optical transport network nodes, and harsh outdoor remote telecom power enclosures.

Core advantages

    Technical specifications

    Key specificationsValue
    System Nominal Voltage-48V DC
    Communication InterfacesRS232, RS485, CAN
    Supported ProtocolsModbus, Huawei Master-Slave Protocol
    Display InterfaceLCD Screen with Multi-Language Graphical UI
    Operating Temperature Range-20°C to +70°C
    Hot-Swappable SupportYes (Live Hot-Pluggable / Plug-and-Play without Power Interruption)

    Applications

    01

    DC power management for 4G/5G cellular macro sites and remote radio head (RRH) distribution hubs

    02

    Power subrack telemetry and battery protection for optical line terminals (OLT) and transmission nodes

    03

    Supervisory control in ruggedized outdoor integrated telecom enclosures and micro-cell power plants

    04

    Industrial SCADA communication sites, utility substations, and wayside railway signaling DC power plants

    Frequently asked questions

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