1U 2 Slot High Voltage DC and DC Solar Expansion Shelf for 48V Telecom Power Systems

Overview for 1U 2 Slot High Voltage DC Power System

The ET48100-P5E21 is a 1U 2-slot solar expansion shelf designed for -48V telecom power systems. It is used as an extension subrack for integrating high-voltage photovoltaic DC/DC modules into a telecom power platform.

This unit is not a standalone power system. It must be connected to a compatible main power shelf that includes the controller, breakers, and system management functions. When used together with the host shelf, the ET48100-P5E21 provides an efficient and space-saving way to expand solar input capacity for telecom and communication power applications.

With its compact 1U design and 2-slot configuration, this expansion shelf is suitable for telecom cabinets, hybrid energy systems, and outdoor communication power solutions where modular PV expansion is required.

Key Features for 1U 2 Slot High Voltage DC Power System

1U Compact Expansion Shelf Design

The ET48100-P5E21 adopts a 1U height design, making it suitable for telecom power systems where rack space is limited. Its compact structure supports modular installation and flexible system expansion.

2-Slot Configuration

This model is configured with 2 module slots, allowing installation of two compatible high-voltage solar DC/DC modules. It is designed as an expansion platform for increasing PV conversion capacity within the host system.

Designed for -48V Telecom Power Systems

The ET48100-P5E21 is intended for -48V telecom DC power architecture and is suitable for communication sites that require photovoltaic energy integration.

High-Voltage DC/DC Expansion Application

This product is positioned as a high-voltage DC/DC expansion shelf, used for connecting PV input modules to the telecom power system. It is suitable for solar-assisted communication power solutions and hybrid telecom energy platforms.

Works Together with Main Power Shelf

The ET48100-P5E21 does not include the main controller or breaker section. It must be used together with a compatible main shelf that provides system control, monitoring, protection, and power distribution.

Modular and Scalable Solution

By adding this expansion shelf to the main telecom power system, users can increase solar module capacity in a simple and structured way, making the system easier to scale according to site demand.

Technical Specifications for 1U 2 Slot High Voltage DC Power System

Product Positioning for 1U 2 Slot High Voltage DC Power System

The ET48100-P5E21 is designed as an expansion shelf only, rather than a complete integrated telecom power system. It is suitable for projects where the main shelf already provides:

• system controller
• circuit breakers
• monitoring functions
• protection and distribution management

This product mainly serves as a module carrier and expansion platform for adding solar DC/DC conversion capacity to the existing telecom power system.

Typical Applications for 1U 2 Slot High Voltage DC Power System

• Telecom power systems with photovoltaic expansion
• Solar-assisted -48V communication power systems
• Hybrid telecom energy systems
• Outdoor telecom cabinets with modular solar integration
• Remote communication sites requiring scalable PV power access

Why Choose for 1U 2 Slot High Voltage DC Power System

The ET48100-P5E21 provides a practical solution for expanding solar power capacity in -48V telecom systems without changing the main power platform. Its 1U compact design, 2-slot structure, and main-shelf integration architecture make it suitable for telecom operators and integrators seeking a modular and space-efficient solar expansion solution.