48v Telecom Power Supply Rack Mounted Rectifier System For Telecom Powershelves

1. 48v Telecom Power Supply Overview

ESTEL Powershelves ET48700P300 are modular, fault-tolerant, compact DC power systems made up of switched-mode rectifier (SMR) modules. It comes in a wide selection of DC output voltages .These compact systems have been proven in many critical & non-critical applications including switch-tripping in substations, defence, scientific instruments, and more. Suitable for 19” racks of 400mm depth or greater.

2. 48v Telecom Power Supply Parameter

3. ESTEL 48v Telecom Power Supply

A rectifier converts alternating current (AC) to direct current (DC) and provides the power necessary to charge batteries. With a focus on continuously improving the total cost of ownership, ESTEL’s rectifiers, combined with advanced control and monitoring features, help reduce both capital and operational expenditure. Our rectifiers boast excellent power density while fulfilling space and weight requirements. They leave plenty of room for other equipment and create savings in packaging and transportation costs. In addition, their high efficiency lowers total energy consumption and reduces carbon footprint.

ESTEL’s rectifiers are easy to install, as their connectors are located at the rear and are hot-pluggable. Fan cooling with speed control renders operating almost silent. In general the rectifiers include a wide AC input voltage range, protection against AC overvoltage and optional protection against loss of neutral, which make this solution very reliable even in the regions with AC utility network problems.

4. Product Pictures

Load/battery breakers:

Telecom rectifier system pictures:

Rack mounted pictures for reference:

4. ESTEL 48v Telecom Power Supply Features

• The rectifier uses the active Power Factor Compensation (PFC) technology, the power factor is up to 0.96.
• The system has a wide AC input voltage range: 80Vac ~ 300Vac. Vin≥154V.
• The rectifier uses soft switching technology, the efficiency is up to 96%.
• The rectifier safety design complies with UL and CE standards.
• The monitoring module has perfect battery management. The management functions include the LLVD, BLVD, temperature compensation, auto voltage regulation, current limitation, battery capacity calculation and on-line
• battery test, etc.
• The monitoring module can save up to 1000 pieces of historical alarm records.
• The system has complete fault protection and fault alarm functions.
• Front access and front connection. High convenient for installation and maintaining.
• ESTEL Power System provides multiple communication ports (such as RS232, Ethernet and dry contacts), which enables flexible networking and remote monitoring

5. ESTEL 48v Telecom Power Supply Configuration Table

6. Controller-MC2600 (Monitoring Module)

The MC2600 front panel

(1) LAN port (2) RS485 port (3) Run indicator (4) Minor alarm indicator

(5) Major alarm indicator (6) Handle (7) Buttons

Table for controller button description

Describes the indicator on the controller panel is shown in table below

The controller provides two communication ports

The definition of RS485 communication port is shown in below table

The LAN Ethernet port interface definition is shown in Table

7. DI/DO Interface

The DI/DO interface board front panel

Digital input is submenu of parameter setting menu, which is mainly used for the operator to configure the input normal state of 8 digital switches in the system.

Table - Relay input parameter setting

Relay output is submenu of parameter setting menu, which is mainly used for the operator to configure the output normal state of 8 relays in the system.

Table - Relay output parameter setting

In addition, the product provides 6 other ports.

Table - Other intput parameter setting

8. Subrack Installation

Install the subrack to the 19-inch rack, as shown in Figure below.

Ø Step 1,Remove the plug from the package.

Ø Step 2,Push the plug into the 19-inch rack

Ø Step 3,Install the fixed screw (if the mounting hole of the plug frame ear does not correspond to the position of the floating nut of the frame,

it needs to be adjusted according to the actual installation).

Install Rectifier/Solar module

Ø Step 1, Take out the module from the package.

Ø Step 2, Hold the module handle on the front panel and put the module onto the slot.

Ø Step 3, Push the module slowly to the front panel of the module and flush with the power

distribution panel.

Ø Step 4, Tighten the fixing screw on the module panel so that the module does not come off.

Introduction 

Tianjin Estel Electronic Science and Technology Co., Ltd (ESTEL(GUANGDONG)TECHNOLOGY CO., LTD), located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and technology innovative company, we engage in the R&D, manufacture, and sales of telecommunication equipment. Estel has a well-established team of technical and management experts who can meet customers’ specific needs accurately.

The base station integrated solutions and products include outdoor integrated telecom equipment cabinet, battery cabinet, RRU cabinet, power supply cabinet, environment monitoring system, TEC peltier air conditioner, AC220V compressor air conditioner, DC48V variable frequency air conditioner, heat exchanger, rectifier, UPS, embedded telecom power system etc. All the above solutions and products can be custom made.

Our products and solutions have been deployed all over China. Our main domestic customers are China Telecom, China Mobile, China Unicom, State Grid, Shenzhen / Beijing Metro and Huawei / ZTE etc. In addition, our products have been exported to Europe, North America, South America, Central America, Southeast Asia, Africa, Australia, Mid East countries, etc.

“ Customers First, Quality First ” is always our principle. We have attained many certifications, such as ISO9001, ISO14001, OHSAS18001, CE, UL, FCC etc. AS a telecom integrated solutions / energy saving system integrator in China, We have strong advantages in technology competitiveness, management competitiveness ,service competitiveness and price competitiveness. Through many years of experiences in design, production and implementation of different projects around the world, we have gained great reputation. Relying on professional technique and strict quality control, we will continuously offer high cost-effective products and solutions to our respectable customers globally. We will always try our best to meet customers’ need and requirement.

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