48V DC Telecom Rectifier Power System High Density LLVD BLVD Battery Protection Ideal for Industrial Automation Systems

Overview

The IPU412K-C5D45 is a high-performance, modular embedded Telecom Rectifier Power System designed for critical communication networks and industrial DC power applications. Featuring a compact 19-inch rack-mount chassis, it converts three-phase AC input into stable -48V DC power with high energy efficiency. Equipped with an intelligent LCD controller supporting SNMP and RS485 monitoring, integrated AC surge protection (SPD), and dual-stage battery disconnection protection (BLVD & LLVD), this system ensures uninterruptible power supply, battery longevity, and network resilience in harsh environment installations.

Applications

5G & 4G Telecom Base Stations: Reliable -48V DC backup power for macro/micro cellular towers and remote radio units (RRUs).

Data Centers & IT Infrastructure: Power distribution for network racks, servers, switches, and communication gateways.

Industrial Automation & SCADA: Uninterruptible power supply for smart grid substations, railway signaling, and industrial control cabinets.

Broadband & Fiber Access Networks: Ideal for FTTH, OLT, and edge computing enclosures requiring compact high-density DC power solutions.

Technical Specifications

Key Features

Dual Protection (BLVD & LLVD): Protects battery integrity by disconnecting non-critical loads first (LLVD) and shutting off critical loads (BLVD) prior to deep discharge during prolonged grid outages.

High Reliability & AC SPD Integration: Built-in multi-stage surge protection shields internal components against lightning strikes and power surges.

Intelligent Network Management: Features LAN/Ethernet and RS485 interfaces supporting SNMP protocol for remote monitoring, telemetry, and configuration via central management software.

Modular Hot-Swappable Slots: Flexible expansion capability supporting up to 4 high-efficiency rectifier modules for easily scalable power capacity and N+1 redundancy.

Rich Auxiliary Interfaces: Integrated dry contacts (DI/DO), temperature sensor ports (TEMP BAT1/BAT2), and external environmental sensor connections.

Operation Guide

Pre-Installation & Mounting:

Securely mount the chassis into a standard 19-inch equipment rack using the pre-drilled heavy-duty side brackets.

Ensure adequate ventilation around the front/rear cooling vents and verify grounding connection (PE lug) before wiring.

AC & Battery Wiring Connection:

Wire the 3-phase AC input lines (L1, L2, L3, N) to the incoming CHNT C63 main switch.

Connect external backup battery banks to the designated BAT1 and BAT2 breakers (ensure correct polarity: Positive RTN/+, Negative -48V).

Connect load devices to the respective BLVD (high priority) and LLVD (non-critical priority) output breakers.

System Startup:

Switch ON the AC Input main breaker.

Verify on the LCD control panel that the system powers up properly without active alarm LEDs.

Switch ON the battery breakers (BAT1, BAT2) and load distribution breakers (F1 through F12).

Monitoring & Network Setup:

Connect an RJ45 network cable to the LAN port for remote SNMP management, or connect an RS485 cable for local serial communication.

Configure IP address, output voltage setpoints, battery charge current limits, and alarm thresholds using the LCD front panel buttons (ESC, UP, DOWN, ENT).

Maintenance & Module Replacement:

Rectifier modules are hot-swappable; insert or remove rectifiers directly from the slots without turning off the system.

Use the BYPASS button/switch only during manual service bypass procedures when isolating the main controller.