FRTEK 23 25 21 24, 1900 24, 2100 24, 700 850 21 User Manual [en, fr]

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INOVA DAS Operating Manual

Document Reference

Company: Fiber Radio Technologies Version: Ver 1.1 Document Status: Release 1 Issue Date: 2019. 03. Department: R&D Group 2 Author Manager: Jun Hyun, Lee

INOVA DAS

Operating Manual

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INOVA DAS Operating Manual

▪ Copyright

The copyright of this manual is from FRTek Co., Ltd.

This manual may not be reproduced, distributed, modified on any form without the consent of FRTek Co., Ltd

Unauthorized disclosure, distribution, copying or use of the information contained in this document in whole or in part without authority is strictly prohibited.

▪ Trademark

The trademarks mentioned in this manual are registered trademarks of the respective company.

Please read this service manual before installation and operation. Use the system only in accordance with contents of this manual.

 The specification and information regarding the products in this manual are subject to change due to updates to system functionality or

system revision changes without notice. For the latest revision of this manual or for technical inquiries, please contact below :

Company Address : 181 Metro Drive, Suite 580, San Jose, CA 95110

Homepage : http://www.frtek.com

Contact for technical inquires or troubleshooting.

Telephone : 330-622-2911 or 510-390-1939

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INOVA DAS Operating Manual

Version

Issue Date

Details of Revision

Author

Authorizing

Manager

V 1.0

19. 01. 02.

Original

Jun Hyun, Lee

V 1.1

19. 03. 29.

Original

Jun Hyun, Lee

Revision History

This manual is produced by R&D Group 2 Printed in FRTek.

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INOVA DAS Operating Manual

Contents

Chapter 1. Safety & Certification Notice ..................................................................................................... 8

1.1 FCC/IC Warning Statements ................................................................................................................. 9

1.1.1 FCC Part 15.105 statement ............................................................................................................ 9

1.1.2 FCC Part 15.21 statement .............................................................................................................. 9

1.1.3 Health and Safety Warnings ......................................................................................................... 9

1.1.4 RSS-GEN, Sec. 7.1.2 – (transmitters) .......................................................................................... 10

1.1.5 RSS-GEN, Sec. 7.1.2 – (detachable antennas) .......................................................................... 10

1.1.6 RF Radiation Exposure.................................................................................................................. 11

1.2 Certification Notice .............................................................................................................................. 13

Chapter 2. System Overview ......................................................................................................................... 15

2.1 System Overview .................................................................................................................................. 16

2.1.1 Overview ......................................................................................................................................... 16

2.1.2 INOVA DAS Design Considerations ........................................................................................... 17

2.2 System Network Configuration ......................................................................................................... 19

Chapter 3. System Configuration ................................................................................................................. 21

3.1 ERU Figure and Configuration ........................................................................................................... 22

Chapter 4. System Specification .................................................................................................................. 24

4.1 System Specification ............................................................................................................................ 25

4.1.1 System Specification per Frequency Band – 700MHz ............................................................ 25

4.1.2 System Specification per Frequency Band – 850MHz ............................................................ 26

4.1.3 System Specification per Frequency Band – 1.9GHz .............................................................. 27

4.1.4 System Specification per Frequency Band – 2.1GHz .............................................................. 28

4.1.5 System Specification per Frequency Band – 2.3GHz .............................................................. 29

4.1.6 System Specification per Frequency Band – 2.5GHz .............................................................. 29

4.1.7 System Specification per Frequency Band – 2.6GHz .............................................................. 30

4.2 Organization Specification .................................................................................................................. 31

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INOVA DAS Operating Manual

4.2.1 Structure and Type ........................................................................................................................ 31

4.2.2 Manufacturing and Processing ................................................................................................... 32

4.2.3 Materials and Components ......................................................................................................... 32

4.3 Electrical Specification ......................................................................................................................... 33

4.4 Environmental Specification ............................................................................................................... 33

Chapter 5. System Installation ..................................................................................................................... 35

5.1 Tools ........................................................................................................................................................ 36

5.2 ERU Installation .................................................................................................................................... 38

5.2.1 Product Ceiling Installation ......................................................................................................... 38

5.2.2 Product Wall Installation .............................................................................................................. 39

5.2.3 Antenna Connection ..................................................................................................................... 40

5.3 2.5GHz, 2.6GHz Setting Method ....................................................................................................... 40

Chapter 6. Local GUI(Graphical User Interface) ........................................................................................ 42

6.1 Local GUI Main Screen ........................................................................................................................ 43

6.2 Local GUI ERU Screen .......................................................................................................................... 47

6.2.1 ERU Main Screen ........................................................................................................................... 47

6.2.2 ERU Main Screen per Frequency ................................................................................................ 49

Chapter 7. Alarm and Corrective Action .................................................................................................... 57

7.1 Alarm Phenomenon and Solution ..................................................................................................... 58

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INOVA DAS Operating Manual

Figures

Figure 1. Basic Network Configuration. ................................................................................................................. 19

Figure 2. Extended Network Configuration. ......................................................................................................... 20

Figure 3. ERU Configuration ..................................................................................................................................... 22

Figure 4. ERU Port Configuration. ........................................................................................................................... 23

Figure 5. ERU Ceiling Installation. ........................................................................................................................... 38

Figure 6. ERU Ceiling Installation Assemble. ........................................................................................................ 38

Figure 7. ERU Anchor Bolt Wall Assemble. ........................................................................................................... 39

Figure 8. ERU Wall Installation Assemble. ............................................................................................................. 39

Figure 9. ERU Antenna Connection. ........................................................................................................................ 40

Figure 10. For 2.5GHz Service, Insert 2.5GHz MRFU/ERFU/Multiplexer Module. ........................................ 41

Figure 11. For 2.6GHz Service, Insert 2.6GHz MRFU/ERFU/Multiplexer Module. ........................................ 41

Figure 12. Local GUI Initial Screen. ......................................................................................................................... 43

Figure 13. Local GUI Main Screen. .......................................................................................................................... 44

Figure 14. Spectrum Analyzer Window Screen. ................................................................................................... 45

Figure 15. Time Advance Window Screen. ............................................................................................................ 46

Figure 16. Reset Window Screen. ............................................................................................................................ 46

Figure 17. Download Window Screen. ................................................................................................................... 46

Figure 18. Local GUI ERU Screen. ............................................................................................................................ 47

Figure 19. ERU PIMD Screen. ................................................................................................................................... 48

Figure 20. 700MHz ERU Band Information Screen.............................................................................................. 49

Figure 21. 850MHz ERU Band Information Screen.............................................................................................. 50

Figure 22. 1.9GHz ERU Band Information Screen. ............................................................................................... 51

Figure 23. 2.1GHz ERU Band Information Screen. ............................................................................................... 52

Figure 24. 2.3GHz ERU Band Information Screen. ............................................................................................... 53

Figure 25. 2.5GHz ERU Band Information Screen. ............................................................................................... 54

Figure 26. 2.6GHz ERU Band Information Screen. ............................................................................................... 55

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INOVA DAS Operating Manual

Used Abbreviations

DAS Distributed Antenna System

EMS Element Management System

MHU Master Hub Unit

EHUB Ethernet HUB unit

ERU Ethernet Remote Unit

PSU Power Supply Unit

ERFU ERU RF Unit

SFP The Small form-Factor Pluggable

GUI Graphical User Interface

SISO Single Input Single Output

SMR Specialized Mobile Radio

TBD To Be Determined

USB Universal Serial Bus

VSWR Voltage Standing Wave Ratio

ACLR Adjacent Channel Leakage Power Ratio

ALC Auto Level Control

EVM Error Vector Magnitude

3GPP 3rd Generation Partnership Project

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INOVA DAS Operating Manual

Chapter 1

Safety & Certification Notice

1.1 FCC/IC Warning Statements

1.2 Certification Notice

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INOVA DAS Operating Manual

Safety & Certification Notice

1.1 FCC/IC Warning Statements

1.1.1 FCC Part 15.105 statement

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against

harmful interference when the equipment is operated in a commercial environment. This equipment

generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance

with the instruction manual, may cause harmful interference to radio communications. Operation of

this equipment in a residential area is likely to cause harmful interference in which case the user will

be required to correct the interference at his own expense.

1.1.2 FCC Part 15.21 statement

Any changes or modifications not expressly approved by the party responsible for compliance could

void the user's authority to operate this equipment

1.1.3 Health and Safety Warnings

- This system can be operated by approved operator only and operator should observe the warning

sentence of operating manual.

- The operator who can install, operate or handle related system service should acquaint themselves

this manual.

- Control and configuration of this system should be set up according to purpose of use (Refer to the

manufacturer’s product information), it has to be satisfied prescribed request items.

- Operator should turn off the main power switch before installing system, maintenance and related

works.

- If this product is disassembled intentionally, it can bring electric shock, breakdown, malfunction and

static with losing life and property. Do not disassemble, repair and modify product.

- This system cover should be (door) securely fastened in open position, e.g. by tying it up, at outdoor

work in order to prevent door from slamming due to wind causing bodily harm or damage.

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INOVA DAS Operating Manual

- Due to power dissipation, the remote unit may reach a very high temperature. Do not operate this

equipment on or close to flammable materials. Use caution when servicing the unit.

- Use this equipment only for the purpose specified by the manufacturer. Do not carry out any

modifications or fit any spare parts, which are not sold or recommended by the manufacturer. This

could cause fires, electric shock or other injuries.

- Read and obey all the warning labels attached to the unit. Make sure that all warning labels are

kept in a legible condition.

- It is the responsibility of the network provider to implement prevention measures to avoid health

hazards associated with radiation from the antenna(s) connected to the unit.

- Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, or abrasives.

- Although the remote unit is internally protected against overvoltage, it is strongly recommended to

ground (earth) the antenna cables close to the repeater’s antenna connectors for protection against

atmospheric discharge.

- Antenna(s) must be installed such that a minimum separation distance of at least 20cm is

maintained between the radiator (antenna) and all persons at all times. This device must not be co-

located or operating in conjunction with any other antenna or transmitter.

1.1.4 RSS-GEN, Sec. 7.1.2 – (transmitters)

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a

type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential

radio interference to other users, the antenna type and its gain should be so chosen that the equivalent

isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut

fonctionneravec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur

par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l’intention

desautres utilisateurs, il faut choisir le type d’antenne et son gain de sorte que la puissance

isotroperayonnée quivalente (p.i.r.e.) ne dépassepas l’intensité nécessaire à l’établissement d’une

communication satisfaisante.

1.1.5 RSS-GEN, Sec. 7.1.2 – (detachable antennas)

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INOVA DAS Operating Manual

This radio transmitter (identify the device by certification number, or model number if Category II)has

been approved by Industry Canada to operate with the antenna types listed below with the maximum

permissible gain and required antenna impedance for each antenna type indicated. Antenna types not

included in this list, having a gain greater than the maximum gain indicated for that type, are strictly

prohibited for use with this device.

Le présent émetteur radio (identifier le dispositif par son numéro de certification ou son numéro de

modèle s’il fait partie du matériel de catégorie I) a été approuvé par Industrie Canada pour fonctionner

avec les types d’antenne énumérés ci-dessous et ayant un gain admissible maximal et l’impédance

requise pour chaque type d’antenne. Les types d’antenne non inclus dans cette liste,ou dont le gain est

supérieur au gain maximal indiqué, sont strictement interdits pour l’exploitation de l’émetteur.

1.1.6 RF Radiation Exposure

This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment.

This equipment should be installed and operated with a minimum distance of 20 cm between the

radiator and your body. This transmitter must not be co-located or operating in conjunction with any

other antenna or transmitter. RF exposure will be addressed at time of installation and the use of higher

gain antennas require larger separation distances.

L’antenne (ou les antennes) doit être installée de façon à maintenir à tout instant une distance

minimum de au moins 20 cm entre la source de radiation (l’antenne) et toute personne physique. Cet

appareil ne doit pas être installé ou utilisé en conjonction avec une autre antenne ou émetteur.

Warning

Obey all general and regional installation and safety regulations relating to work on high

voltage installations, as well as regulations covering correct use of tools and personal protective

equipment.

Warning

Use of unauthorized antennas, cables, and /or coupling devices not conforming with ERP/EIRP

and /or indoor‐only restrictions is prohibited.

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INOVA DAS Operating Manual

The head end unit must always be connected to the Base Station using a direct cabled connection. This system has not been approved for use with a wireless connection via server antenna to the base station.

When external fan installed in the bottom of the enclosure operate, please keep at regular intervals to prevent danger. If you want to detach it, you must have access after operation of fan off.

WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES

and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC

License to operate this device. Unauthorized use may result in significant forfeiture penalties,

including penalties in excess of $100,000 for each continuing violation.

WARNING: This is NOT a CONSUMER device. It is designed for installation by an installer

approved by an ISED licensee. You MUST have an ISED LICENCE or the express consent of an

ISED licensee to operate this device.

Warning

Laser radiation! Do not stare into the beam; do not view it directly or with optical instruments.

Please be informed that the temperature of the surface is too high. Please be careful. The label is attached to the front of the equipment and the PSU (Power Supply Unit).

• INFORMATION TO THE USER

• [FCC] BOOSTER WARNING LABEL

• [IC] BOOSTER WARNING LABEL

• NOTICE

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INOVA DAS Operating Manual

This equipment’s simple information are :

- AMP Gain : 42dB @700M, 850M / 44dB @1.9G, 2.1G / 40dB @2.3G / 43dB @2.5G, 2.6G

- Bandwidth : 28MHz @700M / 32MHz @850M / 65MHz @1.9G / 70MHz @2.1G / 10MHz @2.3G

195M @2.5G / 70MHz @2.6G

- Output Power: 21dBm @700M, 850M, 2.3G / 24dBm @1.9G, 2.1G, 2.5G, 2.6G

- Input/Output impedances : 50ohm

1.2 Certification Notice

Specification or recommendation about Antennas is not available or not mention in this manual. As

per default antennas, cables or coupling devices, contact www.frtek.com for further information.

For PLUGGABLE EQUIPMENT, the socket‐outlet shall be installed near the equipment and shall be

easily accessible.

- FCC : This equipment complies with the applicable sections of Title 47 CFR Rule Parts

- UL : This equipment complies with UL Standard for safety for information technology equipment,

including electrical business equipment.

- FDA/CDRH : This equipment uses a LASER according to FDA/CDRH Rules. This product conforms to

all applicable standards of 21 CFR Chapter 1, Subchapter J, Part 1040.

Note

RESTRICTED ACCESS LOCATION: location for equipment where both of the following apply:

- access can only be gained by SERVICE PERSIONS or by USERS who have been instructed about

the reason for the restrictions applied to the location and about any precautions that shall be

taken; and

- access is through the use of a TOOL or lock and key, or other means of security, and is controlled

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INOVA DAS Operating Manual

by authority responsible for the location

- Home/ personal use are prohibited

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INOVA DAS Operating Manual

Chapter 2

System Overview

2.1 System Overview

2.2 System Network Configuration

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INOVA DAS Operating Manual

System Overview

2.1 System Overview

2.1.1 Overview

INOVA DAS is a system that can provide high quality telecommunication quality and data

telecommunication service both in-building and outdoor. Also, this system is a DAS (Distributed

Antenna System) system, a digital system capable of accommodating a plurality of frequency bands,

available for public and private facilities.

INOVA DAS system can be installed in:

- Shopping Malls

- Hotels

- Campus

- Airports

- Subways

- Stadiums and convention centers, etc

INOVA DAS helps improve poor telecommunication in-building/outdoor wireless environments. This

system provides telecommunication service to every corner of the building, and allows the user to use

telecommunication service regardless of the location. Also, INOVA DAS supports worldwide

telecommunication standards and public interface protocols.

System capable frequencies :

- 700MHz(LTE)

- 850MHz(CDMA, UMTS, LTE)

- 1.9GHz(UMTS, LTE)

- 2.1GHz(UMTS, LTE)

- 2.3GHz(LTE)

- 2.5GHz(TD-LTE) or 2.6GHz(LTE)

INOVA DAS is configured with standardized modules. The coverage of specific frequency band can

be ensured by mounting the unit module of the frequency. Also, since multiple signals can be

transmitted through optic cable, additional hardware modification is not needed.

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INOVA DAS Operating Manual

INOVA DAS

Model Name

Type

Remark

MHU

FR-RLWFMHUUC

19” Rack type

EHUB

FR-RLWFEHUBUC

Wall mount type

ERU

FR-RLWFDL24UC

Ceiling mount type

Available for wall

mount

The main characteristics and features of INOVA DAS can be summarized as below.

• Scalability

- Supports optic fiber port.

- Star or cascade structure of network configuration is available.

- in-building or outdoor service is available.

- EMS support of remote control/monitoring for all network configured MHU, EHUB, and ERU.

• Structure

- Modular frequency upgrade.

- Plug-in type module.

• Multi-band, multi-operator support

- One ERU supports up to 6 frequency band service.

- 2.6GHz frequency band service for Canada operators available.

- Multi-operator support for one frequency band available.

• Low OPEX / CAPEX

- Miniaturized design.

- Easy installation and maintenance.

• Technology improvements

- RF direct conversion technology by applying RF 1Chip.

- Sectorization function for Alpha or Beta sector service.

- 1Gbps Ethernet telecommunication function available for various applications.

- Node Isolation function implementation to prevent service disconnection of lower node. (EHUB)

2.1.2 INOVA DAS Design Considerations

INOVA DAS is configured as below, and the model name is as the following.

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INOVA DAS Operating Manual

Service Band

Remark

MHU

EHUB

ERU

700MHz

850MHz

1.9GHz

2.1GHz

2.3GHz

2.5GHz or 2.6GHz

USA : 2.5GHz support Canada : 2.6GHz support

ITEM

MHU

EHUB

ERU

Input Power

88V~132V (60Hz)

PoE++

Interface(Input)

Optic

Ethernet

Interface(Output)

Optic

Ethernet

Service Capability

CDMA, UMTS, LTE,

TD-LTE

CDMA, UMTS, LTE,

TD-LTE

CDMA, UMTS, LTE,

TD-LTE

Type

Indoor

Cascade Function

Only 4-Star @EHUB

1EA

INOVA DAS is a digital optic repeater system capable of multi-band, multi-operator, and can extend

wireless service for in-building and outdoor areas. This system can accommodate up to 6 bands. It is

designed to support 700MHz (28MHz) LTE service, 850MHz (32MHz) CDMA & UMTS & LTE service,

1.9GHz (65MHz) UMTS & LTE service, 2.1GHz (70MHz) UMTS & LTE service, 2.3GHz(10MHz) LTE service,

2.5GHz(195MHz) TD-LTE service or 2.6GHz(70MHz) LTE service.

INOVA DAS MHU is configured with MWDM, MPSU, MDRU, MBIU, each unit is connected with

Harness, RF cable, and optic cable. Each component is modularized, and can be easily

mounted/dismounted, designed for simple module replacement and maintenance. Also, each unit is

designed to withstand vibration test standard (IEC 60068-2-6:2007). The EHUB and ERU is designed for

indoor use with enclosure structure designed to block dust, pollutant and insects.

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INOVA DAS Operating Manual

2.2 System Network Configuration

INOVA DAS basic network configuration for EHUB and ERU is as below picture.

Figure 1. Basic Network Configuration.

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INOVA DAS Operating Manual

Figure 2. Extended Network Configuration.

MHU is connected to the base station with wired RF cable, and connected to the lower EHUB

equipment with optic cable. EHUB is connected to ERU with wired Cat.7 cable, optic signal is converted

into Ethernet signal and transmitted to ERU or the Ethernet signal is converted into optic signal and

transmitted to MHU. Each branch of the MHU can each be connected cascade with 2 EHUBs for

operation, I EHUB can be connected to a total of 4 ERUs.

For service extension, EHUB and ERU are connected by optic cable with DTU(MHU), one branch can

operate up to 2 EHUBs, so up to 2 stages of cascade is available for configuration. Also, SISO ROU and

ROU are set to the same TX, RX Frequency.

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INOVA DAS Operating Manual

Chapter 3

System Configuration

3.1 ERU Figure and Configuration

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INOVA DAS Operating Manual

System Configuration

3.1 ERU Figure and Configuration

ERU is a structure that can be used in-building, enclosure is configured as ceiling fixed type. ERU is

configured with ERPSU, ERDTU, ERCPU, 4 ERFUs (ERU RF unit) and can support up to 6 frequency bands.

ERU functions can be explained as the following.

- Converts Ethernet signal to RF signal, amplifies and services through antenna. (Downlink)

- Converts RF signal to Ethernet signal, transmits to upper equipment. (Uplink)

- 700MHz, 850MHz, 1.9GHz, 2.1GHz, 2.3GHz, 2.5GHz or 2.6GHz service support.

- Receives power supply from EHUB through Cat.7 cable. (No separate PSU)

- Delay control function through Time Advance function.

- 1Gbps Ethernet port implementation for various use.

Below picture shows the ERU figure.

Figure 3. ERU Configuration

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INOVA DAS Operating Manual

Item

Content

Remark

Size

380 * 380 * 255 (W * H * D)

Including bracket

Weight

Approx. 19kg

Input power

PoE++

No separate PSU

Environment

In-building type

Content

①

ERU DTU Debug port

②

1Gbps service port

③

PoE++ Ethernet port (Power)

④

PoE++ Ethernet port (Data)

⑤

ERU CPU Debug port

⑥

Web GUI Ethernet port

⑦

Bluetooth antenna port

⑧

High Band antenna connection port

⑨

Low Band antenna connection port

Figure 4. ERU Port Configuration.

Caution

Maximum output operated from the ERU differs by frequency band, and must refer to the system

specification for operation.

Caution

Low band antenna must be accurately connected to Low band port, High band antenna must be

accurately connected to High band port.

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INOVA DAS Operating Manual

Chapter 4

System Specification

4.1 System Specification

4.2 Organization Specification

4.3 Electrical Specification

4.4 Environmental Specification

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INOVA DAS Operating Manual

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

728 ~ 756MHz

BW : 28MHz

LTE service support

Reverse direction (UL)

698 ~ 716MHz 777 ~ 787MHz

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

+21dBm/Total

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

System Specification

4.1 System Specification

INOVA DAS is an US/Canada DAS equipment, supports 700MHz, 850MHz, 1.9GHz, 2.1GHz, 2.3GHz,

2.5GHz or 2.6GHz frequency bands, and all frequency bands are designed for extension. INOVA DAS

satisfies the following function and performance characteristics, and specifications not mentioned all

satisfy the functions and performance requests of “3GPP TS25.104”, “3GPP TS25.106”, “3GPP TS 36.104”.

INOVA DAS has the basic functions of the following.

- MHU is connected with base station by RF(wire) access, and connected to EHUB with one optic

cable. Also, EHUB is connected with ERU with Cat.7 cable, and ERU is installed in shaded area to

eliminate radio shaded areas.

-ERU receives power from EHUB through PoE++, and does not need a separate input power.

- Wireless quality of CDMA, UMTS, LTE, TD-LTE service is equal as base station wireless quality.

- When moving terminal enters neighboring base station, this system supports continuous handover.

4.1.1 System Specification per Frequency Band – 700MHz

• Frequency characteristics

• Input/output characteristics

• Noise figure and spurious emission characteristics

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INOVA DAS Operating Manual

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

Transmit/receive separation

Over 100dBc

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

862 ~ 894MHz

BW : 32MHz

CDMA, UMTS, LTE

service support

Reverse direction (UL)

817 ~ 849MHz

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

+21dBm/Total

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

• Other performance requirements

4.1.2 System Specification per Frequency Band – 850MHz

• Frequency characteristics

• Output characteristics

• Noise figure and spurious emission characteristics

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INOVA DAS Operating Manual

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

Transmit/receive separation

Over 100dBc

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

1930 ~ 1995MHz

BW : 65MHz

UMTS, LTE service

support

Reverse direction (UL)

1850 ~ 1915MHz

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

+24dBm/Total

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

• Other performance requirements

4.1.3 System Specification per Frequency Band – 1.9GHz

• Frequency characteristics

• Output characteristics

• Noise figure and spurious emission characteristics

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INOVA DAS Operating Manual

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

Transmit/receive separation

Over 100dBc

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

2110 ~ 2180MHz

BW : 70MHz

UMTS, LTE service

support

Reverse direction (UL)

1710 ~ 1780MHz

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

+24dBm/Total

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

• Other performance requirements

4.1.4 System Specification per Frequency Band – 2.1GHz

• Frequency characteristics

• Output characteristics

• Noise figure and spurious emission characteristics

• Other performance requirements

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INOVA DAS Operating Manual

Transmit/receive separation

Over 100dBc

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

2350 ~ 2360MHz

BW : 10MHz

LTE service support

Reverse direction (UL)

2305 ~ 2315MHz

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

Transmit/receive separation

Over 100dBc

4.1.5 System Specification per Frequency Band – 2.3GHz

• Frequency characteristics

• Output characteristics

• Noise figure and spurious emission characteristics

• Other performance requirements

+21dBm/Total

4.1.6 System Specification per Frequency Band – 2.5GHz

• Frequency characteristics

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INOVA DAS Operating Manual

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

2496 ~ 2690MHz

BW : 194MHz

TD-LTE service support

Reverse direction (UL)

2496 ~ 2690MHz

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

+24dBm/Total

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

Transmit/receive separation

Over 100dBc

Item

Performance

requirements

Remark

Frequency Band

Forward direction (DL)

2620 ~ 2690MHz

BW : 70MHz

LTE service support

Reverse direction (UL)

2500 ~ 2570MHz

• Output characteristics

• Noise figure and spurious emission characteristics

• Other performance requirements

4.1.7 System Specification per Frequency Band – 2.6GHz

• Frequency characteristics

• Output characteristics

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INOVA DAS Operating Manual

Item

Performance

requirements

Remark

Output level

Forward direction (DL)

+24dBm/Total

Tolerance : +1dB

Reverse direction (UL)

0dBm/Total

Item

Performance

requirements

Remark

System noise figure (NF)

Reverse direction (UL)

Below 7dB

Maximum gain

Spurious emission

(within band)

±5.05MHz

Below -14dBm

Maximum output

RBW 100KHz

±10.05MHz

Below -14dBm

±15.5MHz

Below -16dBm

ACLR

channel

45dBc

2 * BW

channel

45dBc

Item

Performance

requirements

Remark

VSWR

Below 1.5 : 1

Transmit/receive separation

Over 100dBc

Item

Type

Option

MHU

19”Rack type

In-building type

EHUB

Wall fixed type

In-building type

ERU

Wall/ceiling fixed type

In-building type

• Noise figure and spurious emission characteristics

• Other performance requirements

4.2 Organization Specification

4.2.1 Structure and Type

• MHU, EHUB, ERU of INOVA DAS should be designed considering installation space and operator's

convenience, and the structure design should be elegant.

• Components of INOVA DAS should be modular, installation should be made in a structure that

each component can be easily mounted and dismounted, and should be easy to replace and

maintain.

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• Each equipment of INOVA DAS is designed in a structure to block dust, pollutant and insects.

• Each equipment of INOVA DAS is designed to withstand vibration test standard.

• All parts of the cabinet should be smoothly treated in order to prevent personal physical injury

during maintenance.

• INOVA DAS provides Timing Advance function for network optimization.

4.2.2 Manufacturing and Processing

• Sealing materials have a very strong thermal properties, and are not torn or damaged by chemicals.

• Internal/external wiring of INOVA DAS is designed elegantly with lapping method or connecter

connecting method, and can withstand vibration.

• Printed circuit board of INOVA DAS is made of glass epoxy resin or equivalent products, soldering

area is exquisite, appearance after soldering is elegant, and has electricity insulator film in order to

prevent reduction of insulation resistance due to corrosion, pollutant, and accumulation of dust and

moisture.

• Internal/external surface of painted cabinet has the same color, cabinet exterior is designed to

withstand blistering, peeling and cracking for 5 years.

• INOVA DAS is designed and manufactured considering methods for emission carbon reduction.

(power consumption reduction, material reduction, etc)

4.2.3 Materials and Components

• Passive devices used in INOVA DAS have stable characteristics on frequency and temperature

change, active devices are industrial or equivalent semiconductors, and integrated circuits are solid-

state devices.

• Wires used in INOVA DAS are tolerance coated wiring with sufficient current capacity and withstands

voltage.

• Coaxial line used to connect each component of INOVA DAS are shielded cable of aluminum or

copper cladding.

• All metal used in INOVA DAS are designed to withstand not only the generally known corrosion,

but also local corrosion including stress corrosion and cracking.

• Plastic used should be insoluble to solvent, and is designed to be free from cracking, molting, and

color change when exposed to ammonia.

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INOVA DAS Operating Manual

• Plastic is designed not to crack when exposed to materials(ex-insulators, filing compound) used for

cable manufacturing.

• Enclosure, components, PCB, solder, cables of INOVA follow RoHS(Restriction to hazardous

substances).

4.3 Electrical Specification

• Power supplied to MHU, EHUB operates normally on commercial power supply (AC120/60Hz).

• There is overvoltage and over current protection function for the power supply.

• When after momentary power outage occurs, RF set value automatically returns to the status right

before the power outage.

• Withstand voltage of primary side power terminal and enclosure ground on input/output terminal

is DC 2.75KV for one minute, and leakage current is within 100mA.

• Withstand voltage of primary side power terminal and secondary side ground on input/output

terminal is DC 4.25KV for one minute, and leakage current is within 100mA.

• Leakage current on phase(120V) is within 3.5mA.

• Surge should not be abnormal when more than 2KV voltage is applied on AC input terminal.

• Equipment grounding is located on both sides of the enclosure.

• Fuse should be visually confirmable(MHU, EHUB), and should be replaceable without equipment

disassemble.

• All components used on INOVA DAS satisfies EMI terms of FCC title 47, part 15, subject J, class A.

• Grounding strap to ground the grounding wire of #6AWG must be attached to the enclosure.

4.4 Environmental Specification

• No condensation marks should occur inside the equipment when specified temperature and

humidity tests are performed.

• INOVA DAS should be designed to have no internal condensation or deterioration due to humidity

and internal, external temperature differences, even when it is not normally operated.

• When performing specified vibration test, system performance or mechanical damage should not

occur.

• When performing specified waterproof test, there should be no moisture penetration inside the

equipment.

• MHU environment test should be performed in accordance to ambient temperature operation

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INOVA DAS Operating Manual

Item

Conditions

Performance Requirements

Environment

test

In-building

- Temperature : -10 ~ +45C

- Humidity : 0 ~ 90% RH

- Output change : within ±3dB

- No problem inside/outside enclosure

Vibration test

- 10 ~ 150Hz, gravitational

acceleration 1G (IEC 60068-2-6)

- No system performance change

- No problem inside/outside enclosure

Noise test

- GR-65-Core(4.6), Level 2

- Below 65dBA (When using

external Fan)

standards(in-building standard, for external enclosure outdoor standard).

• Environment test items and method repetition cycle item should be in accordance to operator

environment test procedure.

Main environment test conditions for INOVA DAS are as the following.

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INOVA DAS Operating Manual

Chapter 5

System Installation

5.1 Tools

5.2 ERU Installation

5.3 2.5GHz, 2.6GHz Setting Method

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INOVA DAS Operating Manual

No.

Tools

No.

Tools

ESD Gloves

Torque Wrench Set

33mm Torque Wrench

+, 3Φ Screw Driver

Wire Stripper

Wire Cutter

Rubber Mallet

Digital Multi-meter

System Installation

“This manual is to provide product installation method and product information to the user operating

the INOVA DAS system, the repeater manager who uses the operation manual needs to require

professional knowledge and experience on construction operation of repeater systems. “

This chapter explains how to connect power cables and how to install each equipment and optic

cable. It specifically describes MHU(MWDM, MPSU, MDRU, MBIU), EHUB, ERU installation method and

cable connecting method.

5.1 Tools

Tools needed for installation are as below.

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INOVA DAS Operating Manual

No.

Tools

No.

Tools

AC Cable

INOVA Harness Cable

INOVA RF Cable

Ground Wire Line

Optic Connector Cleaner

LC-type Optic Fiber

Optic Module

SMA Cable

ANT RF Cable

Bracket Bolt/Nut

Other cables and components needed for installation are as below.

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INOVA DAS Operating Manual

5.2 ERU Installation

5.2.1 Product Ceiling Installation

Figure 5. ERU Ceiling Installation.

ERU can be installed on the ceiling through mount bracket. Above figure is a simplified drawing of

the ceiling. Use anchor bolt to fix ERU for ceiling installation.

Above figure is the assemble drawing of EHUB ceiling installation. The assemble orders are as below.

1. Insert bakelite to M8 Anchor Bolt, and locate ERU according to M8 Anchor Bolt location.

Figure 6. ERU Ceiling Installation Assemble.

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INOVA DAS Operating Manual

2. Insert M8 Insulation Bushing, M8 Plane Washer, and M8 Spring Washer.

3. Tighten M8 Hex, Nut using spanner.

5.2.2 Product Wall Installation

Figure 7. ERU Anchor Bolt Wall Assemble.

ERU can be installed on the wall through mount bracket. Above figure is a simplified drawing of the

wall. Us anchor bolt to fix ERU for wall installation.

Figure 8. ERU Wall Installation Assemble.

Above figure is the assemble drawing of ERU wall installation. The assemble orders are as below.

1. Insert bakelite to M8 Anchor Bolt, and locate ERU according to M8 Anchor Bolt location.

2. Insert M8 Insulation Bushing, M8 Plane Washer, and M8 Spring Washer.

3. Tighten M8 Hex, Nut using spanner.

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INOVA DAS Operating Manual

5.2.3 Antenna Connection

Figure 9. ERU Antenna Connection.

ERU is installed on shaded area to support continuous telecommunication service. Below the ERU

antenna cover there are 2 antennas (Low band, High band) and each antenna port as above figure. The

low band antenna should be connected to the low band antenna port, and the high band antenna

should be connected to the high band antenna port.

Reference

ERU low band antenna gain is 00dB, high band antenna gain is 00dB.

5.3 2.5GHz, 2.6GHz Setting Method

INOVA DAS is basically available to service 700MHz, 850MHz, 1.9GHz, 2.1GHz, 2.3GHz frequency

bands, and is designed to select one of 2.5GHz or 2.6GHz frequency band for service. So according to

the module inserted on the MHU and ERU, it can service 700MHz, 850MHz, 1.9GHz, 2.1GHz, 2.3GHz,

2.5GHz or 700MHz, 850MHz, 1.9GHz, 2.1GHz, 2.3GHz, 2.6GHz. Therefore, as the below figure for 2.5Ghz

and 2.6Ghz, the MRFU, ERFU, ERU Multiplexer of the desired frequency band should be inserted in the

INOVA DAS for service.

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INOVA DAS Operating Manual

Figure 10. For 2.5GHz Service, Insert 2.5GHz MRFU/ERFU/Multiplexer Module.

Figure 11. For 2.6GHz Service, Insert 2.6GHz MRFU/ERFU/Multiplexer Module.

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INOVA DAS Operating Manual

Chapter 6

Local GUI(Graphical User Interface)

6.1 Local GUI Main Screen

6.2 Local GUI ERU Screen

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INOVA DAS Operating Manual

Local GUI(Graphical User Interface)

“This manual is to provide product installation method and product information to the user operating

the INOVA DAS system, the repeater manager who uses the operation manual needs to require

professional knowledge and experience on construction operation of repeater systems. “

• This operation program is designed for controlling and monitoring INOVA DAS.

• This operation program uses USB-B type port configured on each equipment CPU for

telecommunication.

• User is available to monitor and control the INOVA DAS operation status through MHU and ERU

main screen.

6.1 Local GUI Main Screen

When executing Local GUI of INOVA DAS, the GUI initial screen is shown as the above figure. Local

GUI and INOVA DAS equipment can be connected with serial communication or UDP communication..

Figure 12. Local GUI Initial Screen.

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INOVA DAS Operating Manual

Serial telecommunication can be used by connecting to USB B-type port of MCPU or ERCPU, UDP

telecommunication can be used by connecting to Ethernet port of MCPU or ERCPU.

① Telecommunication Connection

This is the window to select telecommunication method for GUI operation with INOVA DAS.

- Mode : You can select GUI connection method for equipment. (Serial or UDP telecommunication)

- Comport : You can select auto set serial port on GUI notebook.

- Baudrate : Basically uses 38400.

GUI screen as above figure will show up when selecting telecommunication method and connecting

GUI and INOVA DAS. When accessing to the desired equipment (MHU, EHUB, ERU) from the screen,

GUI screen of the equipment will appear.

① Manufacturer Information

Window to check INOVA DAS manufacturer information and GUI version information.

② Equipment Tree

Figure 13. Local GUI Main Screen.

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INOVA DAS Operating Manual

Window to check current INOVA DAS connection status all at once. From this tree configuration,

the status of equipment connected to each branch of the MHU, connected EHUB, ERU configuration

information can be checked, and existence of equipment alarm can be confirmed through the alarm

on the side. Also, by selecting the desired equipment on this window, the screen to check status

information and to control the equipment will show.

③ GUI Function

INOVA spectrum analyzer function or time advance, download function can be checked on this

item.

- Spectrum : Item to use INOVA DAS spectrum analyzer function. Digital input/output signal of

all frequency bands can be checked from this function, and each service signal per frequency

can be checked real time. Spectrum Analyzer screen is as below.

Figure 14. Spectrum Analyzer Window Screen.

- Time Advance : Item to use INOVA DAS time advance function. Measures delay between optic

cables of configured equipment, and can automatically set system delay to user set delay value.

Time Advance screen is as below.

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INOVA DAS Operating Manual

Figure 15. Time Advance Window Screen.

- Reset : Item to use reset function of CPU or DTU of the current configured equipment. Below

figure shows the reset window.

Figure 16. Reset Window Screen.

- Download : Item to use function to download firmware such as CPU, DTU, RF unit of the current

configured equipment. Below figure shows the download window..

Figure 17. Download Window Screen.

- Debug : Item to use debug on GUI.

- Exit : Item to use when exiting current GUI.

④ ID Setting

Item to read set ID, and reset ID. When using this item, GUI needs to be accessed by connecting

cable to EHUB CPU and ERCPU. When ID is assigned, EHUB ID and ERU ID must all be set.

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INOVA DAS Operating Manual

6.2 Local GUI ERU Screen

6.2.1 ERU Main Screen

• <Status Mode> requests ERU equipment's status information at intervals of 1

• By clicking <Set Mode> button, <Set> button next to the button is activated, enters to <Set

Mode>, stops status request and can control ERU items.

• When setting is successfully completed, <Setting Success> message window is shown.

• When clicking <Close> button the window will close, and go back to <GUI Main>.

Above figure shows the INOVA ERU GUI screen. ERU main screen is available to monitor temperature,

status monitoring and control of the RF signal.

① PIMD

Item for ERU PIMD function control. On/off button to generate CW tone on RX path (Uplink) of

frequency band exists, and items to measure and check RX gain is configured.

Figure 18. Local GUI ERU Screen.

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INOVA DAS Operating Manual

Figure 19. ERU PIMD Screen.

② Environment

Item to check ERU temperature alarm.

③ Band Information

TX output signal(Downlink) and RX input signal (Uplink) status monitoring and control per each

frequency band is available in this item, and channel information per each frequency set on MHU

can be checked. Also, same as MHU, 2.5GHz and 2.6GHz can be activated/deactivated according to

inserted RRFU.

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INOVA DAS Operating Manual

6.2.2 ERU Main Screen per Frequency

• 700MHz Band Information

Figure 20. 700MHz ERU Band Information Screen.

① 700MHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 700MHz band received from the MHU, EHUB can be

checked on this item, and the output level can be manually adjusted by controlling ATTen. according

to the operator. Also, ALC function is configured for the user to automatically adjust output level by

inputting the desired ALC level and turning the function ON.

② 700MHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 700MHz band received from the terminal can be checked on

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

input level adjustment through ALC is implemented.

③ 700MHz TX Shutdown and Delay Control

Item implements shutdown function of automatically turning HPA off when 700MHz TX output

signal gets high due to overpower. User can set shutdown signal level, function operates when switch

is on.

Also, item is configured with delay control item to control 700MHz system delay. When user inputs

specific value on this delay window, 700MHz system delay applies with the user input value added.

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INOVA DAS Operating Manual

④ 700MHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

• 850MHz Band Information

Figure 21. 850MHz ERU Band Information Screen.

① 850MHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 850MHz band received from the MHU, EHUB can be

checked on this item, and the output level can be manually adjusted by controlling ATTen. according

to the operator. Also, ALC function is configured for the user to automatically adjust output level by

inputting the desired ALC level and turning the function ON.

② 850MHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 850MHz band received from the terminal can be checked on

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

input level adjustment through ALC is implemented.

③ 850MHz TX Shutdown and Delay Control

Item implements shutdown function of automatically turning HPA off when 850MHz TX output

signal gets high due to overpower. User can set shutdown signal level, function operates when switch

is on.

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INOVA DAS Operating Manual

Also, item is configured with delay control item to control 850MHz system delay. When user inputs

specific value on this delay window, 850MHz system delay applies with the user input value added. .

④ 850MHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

• 1.9GHz Band Information

Figure 22. 1.9GHz ERU Band Information Screen.

① 1.9GHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 1.9GHz band received from the MHU, EHUB can be checked

on this item, and the output level can be manually adjusted by controlling ATTen. according to the

operator. Also, ALC function is configured for the user to automatically adjust output level by inputting

the desired ALC level and turning the function ON.

② 1.9GHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 1.9GHz band received from the terminal can be checked on

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

input level adjustment through ALC is implemented.

③ 1.9GHz TX Shutdown and Delay Control

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INOVA DAS Operating Manual

Item implements shutdown function of automatically turning HPA off when 1.9GHz TX output signal

gets high due to overpower. User can set shutdown signal level, function operates when switch is on.

Also, item is configured with delay control item to control 1.9GHz system delay. When user inputs

specific value on this delay window, 1.9GHz system delay applies with the user input value added.

④ 1.9GHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

• 2.1GHz Band Information

Figure 23. 2.1GHz ERU Band Information Screen.

① 2.1GHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 2.1GHz band received from the MHU, EHUB can be checked

on this item, and the output level can be manually adjusted by controlling ATTen. according to the

operator. Also, ALC function is configured for the user to automatically adjust output level by inputting

the desired ALC level and turning the function ON.

② 2.1GHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 2.1GHz band received from the terminal can be checked on

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

input level adjustment through ALC is implemented.

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INOVA DAS Operating Manual

③ 2.1GHz TX Shutdown and Delay Control

Item implements shutdown function of automatically turning HPA off when 2.1GHz TX output signal

gets high due to overpower. User can set shutdown signal level, function operates when switch is on.

Also, item is configured with delay control item to control 2.1GHz system delay. When user inputs

specific value on this delay window, 2.1GHz system delay applies with the user input value added.

④ 2.1GHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

• 2.3GHz Band Information

Figure 24. 2.3GHz ERU Band Information Screen.

① 2.3GHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 2.3GHz band received from the MHU, EHUB can be checked

on this item, and the output level can be manually adjusted by controlling ATTen. according to the

operator. Also, ALC function is configured for the user to automatically adjust output level by inputting

the desired ALC level and turning the function ON.

② 2.3GHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 2.3GHz band received from the terminal can be checked on

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

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INOVA DAS Operating Manual

input level adjustment through ALC is implemented.

③ 2.3GHz TX Shutdown and Delay Control

Item implements shutdown function of automatically turning HPA off when 2.3GHz TX output signal

gets high due to overpower. User can set shutdown signal level, function operates when switch is on.

Also, item is configured with delay control item to control 2.3GHz system delay. When user inputs

specific value on this delay window, 2.3GHz system delay applies with the user input value added.

④ 2.3GHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

• 2.5GHz Band Information

Figure 25. 2.5GHz ERU Band Information Screen.

① 2.5GHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 2.5GHz band received from the MHU, EHUB can be checked

on this item, and the output level can be manually adjusted by controlling ATTen. according to the

operator. Also, ALC function is configured for the user to automatically adjust output level by inputting

the desired ALC level and turning the function ON.

② 2.5GHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 2.5GHz band received from the terminal can be checked on

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INOVA DAS Operating Manual

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

input level adjustment through ALC is implemented.

③ 2.5GHz TX Shutdown and Delay Control

Item implements shutdown function of automatically turning HPA off when 2.5GHz TX output signal

gets high due to overpower. User can set shutdown signal level, function operates when switch is on.

Also, item is configured with delay control item to control 2.5GHz system delay. When user inputs

specific value on this delay window, 2.5GHz system delay applies with the user input value added.

TSNC item slightly delays total time of the 2.5GHz synchronization signal when user inputs specific

value.

④ 2.5GHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

• 2.6GHz Band Information

① 2.6GHz TX Signal Monitoring and Control

The RF signal output level(Downlink) of 2.6GHz band received from the MHU, EHUB can be checked

on this item, and the output level can be manually adjusted by controlling ATTen. according to the

Figure 26. 2.6GHz ERU Band Information Screen.

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INOVA DAS Operating Manual

operator. Also, ALC function is configured for the user to automatically adjust output level by inputting

the desired ALC level and turning the function ON.

② 2.6GHz RX Signal Monitoring and Control

The RF signal input level(Uplink) of 2.6GHz band received from the terminal can be checked on

this item. Also, same as TX, input level can be manually adjusted by controlling ATTen., and automatic

input level adjustment through ALC is implemented.

③ 2.6GHz TX Shutdown and Delay Control

Item implements shutdown function of automatically turning HPA off when 2.6GHz TX output signal

gets high due to overpower. User can set shutdown signal level, function operates when switch is on.

Also, item is configured with delay control item to control 2.6GHz system delay. When user inputs

specific value on this delay window, 2.6GHz system delay applies with the user input value added.

④ 2.6GHz Channel Status

Item cannot be controlled on the ERU screen, the operator label, channel filter type, downlink

frequency, uplink frequency set from MHU per each operator can be checked.

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INOVA DAS Operating Manual

Chapter 7

Alarm and Corrective Action

7.1 Alarm Phenomenon and Solution

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INOVA DAS Operating Manual

Phenomenon

Cause

- Alarm window: green → red

- MHU : When TX PLL within MRFU is abnormal

- ERU : When TX PLL within ERFU is abnormal

Solution and Action

- Solution : Replace MRFU for MHU, replace ERFU for ERU

- Action : For MHU, replace MRFU of frequency band that alarm generated and check if it works

normally, for ERU, same as MHU, replace ERFU of frequency band that alarm generated

and check if it works normally

Phenomenon

Cause

- Alarm window: green → red

- When TX output level is higher than shutdown alarm set value

Solution and Action

- Solution: Set to appropriate TX ATTen.

- Action: Set TX ATTen. appropriately according to the environment, turn ALC on and prevent

shutdown.

Phenomenon

Cause

- Alarm window : green → red

- When DTU board abnormality such as DTU board connection

harness, DTU board clock, DTU board telecommunication

abnormality occurs

Alarm and Corrective Action

7.1 Alarm Phenomenon and Solution

7.1.1 TX/RX PLL Alarm

7.1.2 TX S/D(High) Alarm

7.1.3 DTU Alarm

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INOVA DAS Operating Manual

Solution and Action

- Solution : Replace DTU board connection harness or if abnormality still occurs after 10MHz

reference signal input replace DTU board.

- Action : Check DTU board connection harness, input reference signal and replace DTU board and

check if it works normally.

Phenomenon

Cause

- Alarm window: green → red

- When telecommunication between DTU board and CPU

abnormality occurs

Solution and Action

- Solution : Check DTU board and back board connection status and check reference clock

- Action : Check DTU board connection status and replace DTU board

Phenomenon

Cause

- Alarm window: green → red

- When unit temperature is over 80℃

Solution and Action

- Solution : Turn ON internal or external FAN

When AMP temperature is abnormal, change ERFU of relevant frequency band

- Action: When AMP is abnormal, change ERFU integration module and check if it works normally.

7.1.4 DTU Link Fail Alarm

7.1.5 Over Temp