1U Ultra Compact 48V DC Embedded Telecom Power Subrack System High Density Rack Mount Power Unit for Small Telecom Base Stations Cabinets

Overview & Product Description

The 1U Ultra-Compact Embedded Telecom Power System is a space-saving, high-density DC power distribution subrack specially designed for space-constrained network installations. Measuring just 1U in height, this system provides robust -48V DC power conversion, battery backup connectivity, and comprehensive load distribution for edge network devices.

Equipped with pluggable AC surge protection (SPD), 3 independent DC output channels (Output 1, 2, 3), a dedicated battery terminal (BAT), and an extensive array of environmental and telemetry interfaces (RS485, multi-channel DI/DO dry contacts, temperature and humidity sensors), this unit guarantees ultimate reliability and intelligent monitoring for decentralized telecom and IT operations.

Application Scenarios

Edge Network & Micro Base Stations: Supplies reliable -48V DC power to 5G small cells, remote radio heads (RRH), and edge computing nodes installed in compact street cabinets.

Outdoor Integrated Telecom Cabinets: Space-efficient 1U enclosure design leaves maximum rack space for active network switches, optical transport equipment, and battery trays.

Enterprise IT & Branch Office Racks: Backup power system for critical enterprise routers, VoIP PBX systems, and network security appliances.

Industrial SCADA & IoT Enclosures: Delivers stable DC power for remote telemetry units (RTUs), pipeline monitoring stations, and intelligent transportation systems (ITS).

Technical Specifications

Key Features

Ultra-Slim 1U High-Density Design: Minimizes rack footprint, allowing seamless integration into overcrowded equipment racks or shallow outdoor cabinets.

Integrated Plug-in AC SPD: Front-accessible surge protection module safeguards downstream sensitive communication equipment from lightning spikes and voltage transients.

Comprehensive I/O & Telemetry Panel: Built-in multi-channel dry contacts (7 x DI, 7 x DO) and sensor inputs allow total real-time monitoring of cabinet door status, smoke alarms, battery temperatures, and humidity.

Multi-Channel Load Distribution: Provides 3 discrete load output circuits alongside a dedicated battery port for streamlined cable management and simplified load isolation.

Intelligent Thermal & RS485 Control: Built-in rear cooling grid combined with multi-point temperature sensing ensures optimal operating thermal efficiency and remote monitoring.

Operation Guide

Subrack Installation:

Mount the 1U chassis into a standard 19-inch cabinet using the adjustable side-mounting brackets.

Connect a dedicated protective earth wire to the main chassis grounding point prior to powering the unit.

Power & Load Wiring:

Insert and secure the main AC power line into the labeled AC Input port.

Wire the battery bank to the BAT (+ / -) screw terminals, paying strict attention to polarity.

Connect DC equipment loads to Output+ 1/2/3 and Output- 1/2/3.

Sensor & Alarm Connections:

Connect external temperature probes to the TEMP BAT1/BAT2/BAT3 pins and position them on the battery casing.

Connect door sensors, water leakage detectors, or smoke alarms to the DI (Digital Input) terminals, and link system fault outputs to the DO dry contact relay terminals.

Connect RS485 communication cables (1+, 1- / 2+, 2-) to the central management unit for remote telemetry reporting.

Power-On & SPD Verification:

Switch on primary AC supply; verify the AC SPD

Check DC output terminal voltages using a digital multimeter to confirm stable output before turning on connected loads.