Power Distribution Unit PDU

Power Distribution Unit PDU Model TAB-DC

Power Distribution Unit PDU

Model TAB-DC

2023-04-07 HUAWEI Confidential Page1, Total13

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Prepared by

Wireless Technical Sales Department

Date 2009-03-17

Reviewed by

Date

Reviewed by

Date

Approved by:

Date




Contents

1 User Guide…………………………………………………………………….…..6

1.1 Purpose……………………………………………………………………..……..6

2 Functions of Power Distribution Unit PDU……………….........63 Appearance of Power Distribution Unit PDU.....................74 Principles of the PDU Model TAB-DC.................................7

4.1 Internal structure of the PDU..................................................................................7 4.2 Power Distributions Principles of the PDU Model TAB-DC.....................................8

4.3 Surge Protection Principle of the PDU Model TAB-DC…………………….……8

5. Technical Specifications of the PDU………………………………………….9

5.1 Engineering Specifications of the PDU……………………………...……………95.2 Electrical Specifications of the PDU…………………………………...…………95.3 Surge Protection Specifications of the PDU…………………………..…………10







Figures

Figure 1 Appearance of the PDU..............................................................................................................7

Figure 2 Internal structure of the PDU.....................................................................................................7







Tables

Table 1 Engineering specifications of the PDU........................................................................................9

Table 2 Electrical specifications of the PDU..........................................................................................10

Table 3 Surge protection specifications of the PDU……………………………………….…………...10




1. User Guide

1.1 Purpose

This document describes the Power Distribution Unit (PDU) Model TAB-DC in terms of its functions, structure, and technical specifications.

2. Functions of Power Distribution Unit PDU

The Power Distribution Unit provides power supply solutions to Huawei Wireless products, and it also provides DC power distribution and surge protection functions.

The Power Distribution Unit (PDU) provides the following functions:

Providing twelve -48 V DC outputs divided into two banks to meet multiple power distribution requirements in scenarios of distributed and separated base stations

Providing twelve 10 Amp outputs (BTicino Mod F/B 10) divided into two banks to meet power distributions requirements in scenarios of distributed and separated base stations

Providing surge protection through the DC surge protection unit (Atlantic Scientific Mod MA15) connected to bank A.

Providing four free spaces for additional breakers units.

3. Appearance of Power Distribution Unit PDU




The PDU is a 19 inch / 3U device 250A 16 way.

Figure 1 Appearance of the PDU

4. Principles of the PDU Model TAB-DCThis describes the power distribution principles and surge protection principles of the PDU Model TAB-DC.

4.1 Internal Structure of the PDU

Figure 2 Internal Structure of the PDU

(1) Positive copper bar (2) DC input power wiring terminal




(3) DC output MCB (Breakers) (4) DC Surge protector (5) Bank A (6) Bank B (7) Ground Terminal (8) Cable organizer (9) Stoppers for breakers

4.2 Power Distribution Principles of the PDU Model TAB-DC

The power distribution principles of the PDU are as follows:

The input (+) power is led into the PDU Model TAB-DC through the input terminal 35mm and then divided into 12 outputs through the copper bar to supply power to power consumption devices.

The input (-) power is led into the PDU Model TAB-DC directly through the breakers

The grounding of the PDU Model TAB-DC is implemented through the XXX grounding screw.

For further information about breakers:

4.3 Surge Protection Principle of the PDU Model TAB-DC

The surge protector principle of the PDU is as follow: The surge protector unit provides protection to Bank A where NodeB and

RRU are connected.

For further information about surge protector:

5. Technical Specifications of the PDU Model TAB-DC




The technical specifications of the PDU consist of the engineering specifications, electrical specifications and surge protection specifications.

5.1 Engineering Specifications of the PDU

This describes the engineering specifications of the PDU in terms of the weight, dimensions, and installation modes.

Table 1 Engineering specifications of the DCDU-03

Item Specification Remarks

Weight ≤ 2.2 kg -

Dimensions (width x height x depth)

483 mm × 133 mm × 140 mm

-

Installation mode In a 19-inch rack space

The PDU Model TAB-DC is installed in a 19-inch space; the space for the two mounting ears is included into the board. The panel of the PDU occupies 3 unit racks.

Protection class IP20 -

Working temperature

-40°C to +70°C -

5.2 Electrical Specifications of the PDU

The electrical specifications of the PDU consists of the DC input characteristics and DC output characteristics.

Table 2 Electrical specifications of the DPU




Item Sub-Item Specification Remarks

DC input

Rated input voltage -48 V DC -

Input voltage range -38.4 V DC to -57 V DC -

Maximum input current

250 A -

DC output

Rated output voltage

-48 V DC -

Output voltage range

-38.4 V DC to -57 V DC -

Output MCB configurations

10 A -

Output protection Over current protection and short-circuiting protection enabled for the Bank A outputs

-

5.3 Surge Protection Specifications of the PDU

The PDU provides surge protection for the DC input power.

Table 3 Surge protection specifications of the DCDU-03

Item Specification

Surge protection class Protection requirement (8/20 μs): 18 KA

Maximum leakage current: <0.3 mA

Maximum continuous operating current: 15A

Maximum attenuation (typical): -55dB@100MHz

Weight: 100gr

Dimensions (w,d,h): 79mm x 25mm x 93mm






Power Distribution Unit PDU

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