3.1 Configurations of the BTS3900L Cabinet. Huawei BTS3900L LTE, BTS3900L GSM, BTS3900L, BTS3900L WCDMA

BTS3900L (Ver.C)

Installation Guide 3 Information About the Installation

3.1 Configurations of the BTS3900L Cabinet

This section describes the interior and components of the BTS3900L cabinet.

Figure 3-1

shows the interior and

Table 3-1

describes the components of the BTS3900L cabinet.

Figure 3-1

Interior of the BTS3900L Cabinet

Issue 07 (2013-11-08)

Table 3-1

Components in the BTS3900L cabinet

No.

Module Optional or

Mandatory

Maximum

Quantity

1 Filler panel Optional -

Remark

If a slot in the RFU subrack is vacant, insert a filler panel into the slot. This ensures normal ventilation of the cabinet.

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BTS3900L (Ver.C)

Installation Guide

7

8

3

4

5

6

No.

2

9

3 Information About the Installation

Module

RFU

Fan Assembly

Air intake vent

DCDU-11A

BBU

Cable trough

BBU

Remaining space

Optional or

Mandatory

Mandatory

Maximum

Quantity

12

Mandatory

Mandatory

Mandatory

Mandatory

Mandatory

Optional

Optional

-

-

-

2

2

1

1

Remark

The RFU modulates and demodulates baseband signals and RF signals, processes data, and combines and divides signals.

Fan assembly dissipates the heat from the cabinet.

-

-

-

BBU3900 processes the baseband signals and enables interaction between the base station and the BSC or RNC.

This 2 U space can house a

BBU in triple-mode base stations. It is recommended that this space be reserved even when only one BBU is installed.

This 2 U space can house the

GATM or transmission equipment. The GATM is preferentially installed in this space and is supplied with power by the DCDU-01. If there is no GATM, the transmission equipment is installed in this space.

NOTE

The transmission equipment is preferentially installed outside the cabinet. However it can be installed at the bottom of the cabinet under some special condition (e.g.: space constraint). The following requirements must be satisfied: l The transmission equipment must be able to work properly at a temperature equal to or higher than

55°C.

l The transmission equipment is fed with external power supply since DCDU-11A does not support power supply to transmission equipment.

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