lee@ricewind.comTel+86 17621197907Serving 50+ countries
RICEWIND
Emerson PSM-831D Pure White Background Hardware Shot 1
EmersonModel: PSM-831D

Emerson PSM-831D Telecom Power Supervisory Environment Controller (LCD/RS485)

The Emerson PSM-831D is an intelligent telecom power supervisory and environmental data acquisition controller designed for -48V DC power distribution systems, delivering precision telemetry, switch status monitoring, and bus communications.

Pricing is confirmed by project configuration and quantity

Request a quote

What this product is

What this product is

Built on a resilient industrial micro-controller architecture, the PSM-831D integrates galvanically isolated analog/digital telemetry channels, dual-transceiver serial communication buses, and hardware watchdog fail-safes. Fully compliant with carrier-grade EMC/EMI standards, it orchestrates rectifier load sharing, dynamic temperature-compensated float/boost battery charging, and dual-level low-voltage disconnection (LLVD/BLVD).

What problem it solves

Eliminates operational blind spots in remote telecom sites, prevents catastrophic battery thermal runaway, resolves rectifier load-sharing anomalies, and minimizes field service dispatch costs through real-time telemetry, automated load disconnects, and sub-second alarm delivery.

Who and where it is for

Engineered for cellular wireless macro base transceiver stations (BTS), edge aggregation centers, optical transmission relay stations, utility substation DC power cabinets, and -48V DC enterprise communications infrastructure.

Core advantages

    Technical specifications

    Key specificationsValue
    System Nominal Voltage-48V DC
    Communication InterfacesRS485, RS232
    Supported ProtocolsModbus-RTU, Emerson Protocol
    Display InterfaceDot-Matrix LCD Display with English/Chinese Operator UI
    Operating Temperature Range-20°C to +65°C
    Hot-Swappable SupportYes (Live Hot-Pluggable / Plug-and-Play without Power Interruption)

    Applications

    01

    Telecom 4G/5G macro shelter and outdoor cabinet power and environmental monitoring

    02

    Central office (CO) and edge optical transport network DC plant supervisory control

    03

    Railway signaling and trackside communication shelter uninterrupted DC power automation

    04

    Electric utility transmission substation RTU and communication power infrastructure

    Frequently asked questions

    Continue exploring

    Emerson

    Emerson M500D Genuine Telecom Hardware Shot 1
    EmersonModel: M500D

    Emerson M500D NetSure Power System Supervisory Microprocessor Controller (LCD/RS485/SNMP)

    Built around an industrial low-power embedded processor with natural convection cooling, the M500D delivers operational resilience from -20°C to +65°C. It controls parallel rectifiers via an isolated internal RS485 multidrop bus to perform autonomous load-sharing and dynamic energy-saving sleep cycling, while north-bound Fast Ethernet (FE), RS232, and RS485 ports support SNMP, Modbus, and proprietary protocols for remote network integration.

    View detailsRequest a quote
    Emerson M500F Genuine Telecom Hardware Shot 1
    EmersonModel: M500F

    Emerson M500F Advanced Site Energy & Environment Intelligent Supervisory Unit (LCD/CAN/FE)

    Engineered for harsh industrial deployments, the M500F features a fanless, natural-convection thermal topology operating seamlessly across -20°C to +70°C. Utilizing dual high-speed CAN bus channels for millisecond-level load sharing and dynamic rectifier cycling, alongside dual-stack Fast Ethernet with secure SNMPv3/HTTPS, it delivers carrier-grade availability for critical telecommunications and mission-critical data networks.

    View detailsRequest a quote
    Emerson M821D Genuine Telecom Hardware Shot 1
    EmersonModel: M821D

    Emerson M821D Large-Scale Telecom Power Supervisory Controller (Matrix LCD/Expansion)

    Powered by a high-performance 32-bit embedded processor and a dot-matrix graphical LCD, the M821D orchestrates parallel rectifier management and battery lifecycle protection via CAN, RS485, and Ethernet connectivity. Engineered to carrier-class EMC and environmental standards, it operates reliably across -20°C to +65°C, ensuring sub-second fault detection and remote Network Management System (NMS) alignment.

    View detailsRequest a quote
    Emerson PSM-D21 Genuine Telecom Hardware Shot 1
    EmersonModel: PSM-D21

    Emerson PSM-D21 DC Utility Power Monitoring & Battery String Inspection Unit (LCD/Hot-Plug)

    Featuring a robust fanless natural-convection thermal design and industrial-hardened electronics, the PSM-D21 operates reliably across an extended temperature range of -20°C to +60°C. It utilizes advanced battery charge-discharge management algorithms and redundant rectifier orchestration, polling field parameters over isolated RS485 and RS232 interfaces with carrier-grade EMC Class IV immunity.

    View detailsRequest a quote
    Products