AM 40 1821 NF User Manual

User Manual Dual Band Line Amplifier

Netop Technology Co., Ltd Tel: +86 21 6921 4567 B2, No.303 XinKe Rd, Qingpu Industrial Zone, Fax: +86 21 6921 3655 Shanghai, China P.C: 201707 www.netop-technology.com

User Manual

(Dual Band Line Amplifier AM-40-1821-NF)

Manual Version 1.1

No part of this documentation may be excerpted, reproduced, translated, annotated or duplicated.

In any form or by any means Without the prior written permission of NETOP Technology Co., Ltd

Copyright © 2009 NETOP Technology Co., Ltd. All rights reserved.



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Contents

Chapter 1................................................................................................. 4

Safety instructions .......................................................................... 4

Chapter 2................................................................................................. 5

Product Overview............................................................................ 5

Main Functions................................................................................ 6 Complete Frequency Range..........................................................................6 Excellent RF performance.............................................................................6 Powerful CPU module ..................................................................................6 Flexible Remote Control & Monitoring Options .................................................7 Reliable Mechanical Design...........................................................................7 Product Outline Drawing ..............................................................................7 Product Function Structure...........................................................................8

Chapter 4................................................................................................. 9

Engineering Installations .................................................................. 9 Overview...................................................................................................9 Equipment Installation and Commissioning Flow..............................................9

Before Installation......................................................................... 12 Choosing a site location .............................................................................12 Power supply ...........................................................................................12 Installation tools and accessories ................................................................12 Installation Procedures ..............................................................................13

Installation................................................................................... 14

Mounting to the wall .................................................................................14 Installing onto a pole ................................................................................14

Commissioning ............................................................................. 15

Connect Serial Cable .................................................................................16 Check the System.....................................................................................16 Setup steps .............................................................................................16 Line amplifier status..................................................................................17

System Maintenance ..................................................................... 17 Maintenance and repair caution ..................................................................18



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Emergency situation handling.....................................................................18

Chapter 5...............................................................................................19

System Monitor ............................................................................ 19 Remote Monitor and Control.......................................................................19

Specifications ........................................................................................22



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Chapter 1

Safety instructions

It is important to read safety instructions before installing LA equipment. These instructions are supplementary to any

local safety regulations in place. In case of any conflict, local safety regulations shall prevail.

Installation personnel should have preliminary knowledge about safety operations and must have received training

on NETOP equipment installation, maintenance and operations.

Some important safety instructions are discussed in the chapter. NETOP shall not bear any liabilities incurred by

violation of universal safety operation requirements, or violation of safety standards for designing, manufacturing and

equipment usage.

1. Line Amplifier must follow system requirements with proper grounding & thunder-proof facilities.

2. Power supply voltage must satisfy safety requirements. Anybody who operates Line Amplifier must cut

off power supply first. Only certified maintenance staff can operate with power-on.

3. Line Amplifier radiates electromagnetic wave, which will cause damage to human body. People other

than maintenance staff please keep away.

4. Do not expose yourself long time to the Line Amplifier system in working condition because the

electromagnetic field emitted by Line Amplifier may do harm to your health.

5. If installed at height (onto the pole), the Line Amplifier shall be securely fixed to prevent body injuries

from dropping parts.

6. Line Amplifier must be away from fire, as electronic components may explode upon fire.

7. Static electricity produced by human body can damage sensitive components on the circuit board,

such as large integrated circuits (ICs).Line Amplifier must be away from fire, as electronic components may explode

upon fire.



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Chapter 2

Product Overview

NETOP Dual Band Line Amplifier is combined with base stations, used for amplifying DCS1800 and

WCDMA signals. It effectively enhances the shadow signals in urban areas like hotel, office buildings,

shopping centers, apartment complexes as well as basements.

Refer to the application diagram in figure 1, Line Amplifier gets the signal source from feeder cable via

coupler or splitters, then amplifies and distributes the signal to coverage antenna sub-systems.

Figure1 Line Amplifier Applications

NETOP Line Amplifier has remote control and monitoring function, and it can be self-diagnosis.

In case of an external power off, Amplifier can keep sending alarm message to network management

center for four hours, facilitating monitoring, configuring and maintenance.

NETOP Dual Band Line Amplifier is modular design, users can deploy diversified RF output

rate and power supply options for various projects. That provides a low-cost and highly-capable solution

of mobile communication network optimization. The Dual Band line amplifier is a new kind of BTS

coverage extension system to improve the signal in large building. It can support both DCS1800 and

WCDMA system. It is composed of two amplification links for uplink and downlink



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Figure 2 Dual Band Line Amplifier diagram

Main Functions

Complete Frequency Range

NETOP Dual Band Line Amplifier can cover full band DCS1800 and WCDMA frequency band..

Excellent RF performance

NETOP Line amplifiers’ optimized RF design has ensured a transparent and trouble-free up and down

link RF path through the delicacy of balancing & control over parameters like noise figure, up/downlink

power output and link budget, out of band rejection, self-oscillation, ACPR and time delay etc.

Powerful CPU module

The powerful CPU module enables setting up, query and monitoring of various line amplifier info and

parameters. Imbedded backup batteries for the CPU module enable alarms to be sent out continuously

for two hours when there is power off. LEDs on control panel of Line Amplifier indicate the status and

door alarm convenient for onsite installation and maintenance. CPU module can also be connected

through RS232 serial interface locally.



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Flexible Remote Control & Monitoring Options

A GSM wireless modem is imbedded in NETOP line amplifier, supporting SMS communication, for point

to point remote control and monitoring, between line amplifier site and Operating & Maintenance Center

through NETOP line amplifier OMT software..

Reliable Mechanical Design

Having adopted IP65 die-cast aluminum casing designed for tough weather conditions outdoor and

indoor, suiting temperature from -25 to + 55 , together with its reasonable and compact modules

layout, the Line Amplifier has proven to have good heat dissipation performance through rigorous

thermal simulation and temperature testing. The mould case was nickel-plated to give good EMC and

anticorrosion performance. Multiple lightning-proof measures are adopted at the power supply, antenna

and feeder cable. The MTBF of the Line Amplifier is ensured no less than 50,000 hours.

Product Outline Drawing

Figure 3 Line Amplifier Outline



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Product Function Structure

Figure 4 shows the function structure of Dual Band line amplifier. It is compose of DCS and WCDMA

PAs, DCS and WCDMA Duplexers, DCS and WCDMA Combiners DCS LNA, Power Supply, CPU and

cable assembly.

Figure 4 Dual Band Line Amplifier Function Structure



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Chapter 4

Engineering Installations

Overview

This chapter introduces installation and commissioning flow of line amplifier equipment to help

installation personnel understand the entire process. Brief introduction to some physical parameters of

line amplifier, such as size, weight, humidity and temperature is also included in this chapter.

Equipment Installation and Commissioning Flow

Normal and reliable operation of line Amplifier is based on the quality of installation project. It is important

to establish a set of systematic and standardized installation and commissioning procedures. Workflow

for installation, debugging, acceptance and handing over of the equipment is shown in Figure 1.

The installation and commissioning workflow is as follows:

1. Engineering survey

Inspect the suggested site environment to provide related data for design and engineering.

2. Engineering design

Planning department shall design according to the engineering inspection results and make out

relevant design comments and drawings.

3. packing acceptance

After equipment delivery at the site, construction team is responsible to specify the unpacking time

according to engineering preparations. The construction team, the operator, the engineering team

and NETOP shall all be present at the time of unpacking inspection. If any damage to equipment or

shortage in shipment is found during unpacking by a single party, only the unpacking party shall bear

all the liability.

4. Hardware installation



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Qualified engineering personnel shall supervise the whole installation process, including positioning,

base installation, BSC rack installation, BSC board installation, DC power installation, and

connection of internal and external cables.

5. System and power-on check

Conduct necessary check and power-on the equipment after installation.

6. Parameters settings

Set related parameters after installation.

7. System test

Test the system to check if the system operates normally. If it fails the test, adjust the system to meet

the requirements.

8. Trial run

In the first few months after equipment commissioning, the equipment remains in trial run stage.

NETOP is responsible for offering full technical support to the user.

9. Final acceptance

It means that operation of the equipment is stable and meets all requirements. The user and NETOP

together agree upon this and sign the final acceptance certificate.

Note: Refer to the related contract terms for details about project survey, engineering design,

trial run and final acceptance

User Manual Single Band Line Amplifier


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Engineering Survey

Engineering Design

Unpacking Acceptance

Check and Power On

Hardware Installation

Parameter settings

System Tests

Project Completed

Final Acceptance

Start

Preliminary Acceptance Test

Trial Run

End

Y

N

Y

N

Figure 5 Equipment Installation and Commissioning Flow



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Before Installation

Choosing a site location

Make sure access is restricted to qualified personnel

Install the product where power supply and feeder cable are accessible.

Site location should be far away from heat source and damp environment.

Line amplifier should be put in a well-ventilated work area. It should be hung on the wall or the pole to

ensure being ventilated. If the line amplifier is mounted on the wall, there should be at least 50cm away

from the ceiling and a 100cm height space shall be left empty between the line amplifier and the ground.

Power supply

Power supply of this product is normally AC, that is 165~285VAC/50±5Hz. Connect the fans power

connector to the fan power supply port.

Installation tools and accessories

No. parts Model Quantity Comments

1 Expansion Bolt M10 X 100 4 To fix rack onto the wall

2 Hexagonal

Screws M14 X 150 4 To fix rack onto the pole

3 Inner Hex Bolt 4 Preinstalled in holes in corners of

Line Amplifier cabinet

4 Fixing Nuts

(Non-standard) M8 X 10 4

Preinstalled in corners of cabinet

front door

5 L Wrench 1 To tighten or loose hex bolts

6 Electric drill 1 Drill holes on the wall



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Installation Procedures

Mounting Rack Sizes

Figure 6 Mounting Rack

Main Controller Panel

Figure 7 Main Controller Panel

1. BTS Port（DT） 2. Backup port 3.Backup port

4. Service Antenna Port（MT） 5. Power Supply 6. Fans power supply

1 2 3 4

5

6



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Installation

Mounting to the wall

Figure 8 Install to a wall

1. Fix the mounting rack on the wall with the 4 expansion bolts.

2. Fix the Line Amplifier cabinet onto the mounting rack by tightening the Inner Hex bolts （GB70-

85- M8/M10 x 35）preinstalled in four corners to the holding poles on mounting rack using L

shape wrench. Make sure the Line Amplifier is tightly fixed to the mounting rack

3. Close the front door; tighten the four fixing nuts to lock the Line Amplifier cabinet using L

wrench.

Items Name

1 Door

2 Class

3 Upper Bracket

4 Upper Bracket

5 M10x 100 Expansion Bolts

6 Wall

7 M8/M10 x 35 HEX Socket Cap

Screws



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Installing onto a pole

Figure 9 Installing onto a Pole

1. Use the mounting rack to locate the position of the two U-shape clamps and fasten the

mounting U-shape clamps onto a pole

2. Lift the Line Amplifier and hang it onto the holding groove on the rack. Use L Wrench to tighten

the two hex bolts (GB70-85- M8/M10 x 35) in the upper corners to fasten the chassis onto the

rack.

3. Open the front door of the Line Amplifier using the L wrench.

4. Tighten the rest two hex bolts in the lower corners against two fixing nuts (M8) to fasten Line

Amplifier to the mounting rack using 6# T Hex Wrench.

5. Tighten the four fixing bolts on front door using L wrench. Fix the grounding lead to the

grounding bolt and installation is completed.

Items Name

1 Door

2 Casting Box

3 Upper Bracket

4 Upper Bracket

5 I – Type Bracket

6 M14 Nuts and Spring Washer

7 Pole

8 U-shape clamps

9 M8/M10 x 35 HEX Socket Cap

Screws

10 M14 x 150 Hexagonal Screws

11 M14 Flat Washer



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Commissioning

Connect Serial Cable

Open the cabinet, connect RS232 serial interface of line amplifier to RS232 serial interface of pocket computer with the RS232 cable that fit out the line amplifier, and then we can commission the line amplifier locally. Attention: Please turn off the power supply of line amplifier before inserting or pulling out RS232 cable.

Check the System

Before turning on the line amplifier, the following items shall be checked:

1. Check carefully whether connection of RF signal is correct.

2. Check the input power supply. Make sure voltage of power supply is in the range of rated

working voltage of the line amplifier.

3. Check antenna rack, feed cable and the host is grounded. Grounding impedance shall be ≤ 5

ohm.

4. Check the echo loss of the antenna and feed system. Standing ratio < 1.5.

5. The build and pole must be lightning proof.

6. Entrance wire of power supply must pass lightning switch.

7. Antenna and cable must pass lightning switch

Caution: Please strictly follow the instructions above to do the commissioning of line amplifier ;

Please check the power cable connection and voltage before switch on the line amplifier ;

Make detailed records according to the fact.

Setup steps

1. Use the RS232 cable to connect PC and serial port on the device. Start PC and run the OMT.

2. Set location and maintenance parameter on OMT.

3. Set alarms and monitoring on OMT.



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4. Test whether strength of downlink signal are compliant with the requirement.

5. Adjust gain of downlink to make the output power of downlink are compliant with the design

requirement.

6. Adjust gain of uplink to max.

7. Finished setup

Caution: When commissioning the line amplifier, always connect the 30db attenuator to

the output of line amplifier. This is to protect both the line amplifier and the Spectrum

Analyzer. Never turn on the line amplifier without proper termination or load. And in case of

changing the antenna, turn off the line amplifier first.

Line amplifier status

The status of the line amplifier can be observed through 3 LED on the CPU board. A.

Status of LED as follows:

OFF Device no alarm Alarm LED

Red Device has alarm OFF Device do not working

Run LED Blinking Device working normal

OFF Device no DC power Power LED

Green DC power is normal

System Maintenance

We recommend operator do half year routine examination to make sure equipment running stability,

contents comprised:

1. Please do examine for the antenna, comprised directional angle, position, bolt stability and

water-proof adhesive tape aging or not.

2. Please do examine for cable connection and position.

3. Output power examination: indicator should light on and equipment output power enough or not.

If operator find out any malfunction issues, please document everything on file, and fill in

correlation sheet.



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Maintenance and repair caution

Dissemble the equipment: 4. Turn off the external air switch

5. Pull of the line amplifier power plug

6. Do not operate under thunder storm

Cleaning: 1. Turn off the outside air switch

2. Pull of the channelselective line amplifier power plug

3. Do not use liquid to clean the equipment to prevent from short circuit.

4. Use dry cloth to clean.

Grounding: Use plug with grouding pin.

Power: Check whether the voltage and frequency of power supply is fit for the requirement of line

amplifier.

Parts replacement: User should not attempt to repair or replace the parts. Person may get electric shock when

opeing the equipment. Only the authorized specialist can repair and replace the parts.

Waterproof and dampproof : Do not turn on or off the equipment in damp enviroment.

Emergency situation handling

In the following condition: the equipment should be turned off:

1. Power supply doesn't work properly

2. Liquid flow into line amplifier

3. Doesn't work properly (overheating, release of flavor and junk matter)

4. Damage of case

5. Performance degradation

6. Near the fire source

7. Flooding



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Chapter 5

System Monitor

Operation & maintenance terminal (OMT) interact with the Line Amplifier to set and lookup its

status and RF parameters. It can display alarms real-time. OMT can set local connection, SMS

connection with the device for operation and maintenance at any time, or at any location.

OMT and Line Amplifier connection topology showed as Figure 10:

Figure 10 OMT and Line Amplifier Connection Topology

Alarm Monitor and Control

Device Information 0x0003 Device Type

0x0004 Model Number

0x0005 Product SN

0x0007 Longitude

0x0008 Latitude

0x000A FW Version

0x00A5 FW Release Date Monitoring Information

0x0101 Device ID

0x0102 Equipment Number

Line Amplifier Line Amplifier

OMT

Computer

Laptop

RS232

OMT

Computer

Laptop

SMS RS232

Local mode Remote mode



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0x0111 Control Center Phone No. 1





0x0120 Report Phone No.1

0x0140 Remote Communication Mode

0x01A1 Report Phone No.2

0x01A2 Control Center Phone No. Check

0x01A3 Alarm Check Enable

Alarm Enable Parameters 0x0201 Master Power Failure Enable

0x0202 Power Module Alarm Enable

0x0204 Battery Power Low Alarm Enable

0x0206 Over Temp. Alarm Enable

0x020A UL LNA Failure Enable

0x020D DL PA Failure Enable

0x0212 DL Over O/P Alarm Enable

0x0213 DL Low O/P Alarm Enable

0x0214 DL PA VSWR Alarm Enable

0x02A8 M/S Module Comm. Failure Enable

0x02A9 FAN1 Alarm Enable

0x02AA FAN2 Alarm Enable

Alarm Parameters 0x0301 Master Power Failure

0x0302 Power Module Alarm

0x0304 Battery Power Low Alarm

0x0306 Over Temp. Alarm

0x030A UL LNA Failure

0x030D DL PA Failure

0x0312 DL Over O/P Alarm

0x0313 DL Low O/P Alarm

0x0314 DL PA VSWR Alarm

0x03A8 M/S Module Comm. Failure

0x03A9 FAN1 Alarm

0x03AA FAN2 Alarm

Control Parameters 0x0401 Output Signal Switch

0x0440 UL Att.

0x0441 DL Att.

0x0451 System Temp. Limit

0x0455 DL Low O/P Limit

0x0456 DL Over O/P Limit

0x04A2 DL ALC Limit



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0x04A3 UL ALC Limit

Active Parameters 0x0501 DL PA Temp.

0x0503 DL O/P

0x0504 UL Max. Gain

0x0507 Mobile Network Code

0x0508 Location Area Code

0x0509 BTS ID

0x050A ARFCN/ CH No.

0x050B RSSI

0x050C Cell ID

Please refer to

Operation/Maintenance Terminal OMT Software User Manual

in the CD for the details



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Specifications

Electrical Specifications Uplink Downlink Frequency range 1710-1785/1920-1980MHz 1805-1880/2110-2170MHz Output power 0±2dBm 40±2dBm Gain 45 dB 45dB Gain control range 0~20dB / 1dB step 0~20dB / 1dB step Ripple in band ≤3dB (P-P) Noise Figure ≤5 dB VSWR ≤1.5 Transmission delay ≤1.5us Spurious emission 9KHz～1GHz 1GHz～12.75GHz

≤-36dBm ≤-30dBm

Intermodulation （3rd order） ≤ -40dBc ≥ 45dBc/5MHz

ACLR (WCDMA only) ≥ 50dBc/10MHz EVM (WCDMA only) ≤12.5% PCDE (WCDMA only) ≤ -35dB Impedance 50 Ω

Environmental Specifications Operating temperature range -25 to +55ºC Relative humidity 0 to 95% Environmental Standard IP65

Mechanical Specifications Connectors type (RF) N female Operating power AC220V±20%, 50Hz±10% Dimensions 610mm x 420mm x 230mm Weight ≤47 kg

Packing 1 PCS in box



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Revision Record

Title NETOP Dual Band Line Amplifier User Manual

Document NO.

Revision Description Date Writer Approved

by

V1.0 Dual Band Line Amplifier User

Manual Release 16-Jun-08 Ken Marshal

V1.1 Dual Band Line Amplifier User

Manual Adjustment 11-Sep-09 Ken Marshal

Documents

AM 40 1821 NF User Manual