FRTek PrimAer 28 User manual

PRIVATE AND CONFIDENTIAL © 2020 FRTEK CO., LTD.
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PrimAer 28 Operating Manual
PrimAer 28GHz
Operating Manual
Document Reference
Company: Fiber Radio Technologies
Version: Ver 0
Document Status: Release 1
Issue Date: 2020. 11.
Department: R&D Group 1
Author Manager: Jun Sung, Park

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PrimAer 28GHz Operating Manual
▪Copyright
The contents of this Manual are owned and copyrighted by FRTek Co., Ltd.
This manual may not be reproduced, distributed, modified in any form without the written consent of
FRTek Co., Ltd
Unauthorized disclosure, distribution, copying or use of the information contained in this document
in whole or in part without written permission is strictly prohibited.
▪Trademark
The trademarks mentioned in this manual are registered trademarks of FRTek
Please read this service manual before installation and operation. Use the system only in accordance with the contents and directions 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 : [phone] or 510-390-1939

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PrimAer 28GHz Operating Manual
Revision History
Version
Issue Date
Details of Revision
Author
Authorizing
Manager
V 0
Nov. 17th, 2020.
Original
Jun Sung, Park
This manual is produced by R&D Group 1 Printed in FRTek.

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PrimAer 28GHz Operating Manual
Contents
Chapter 1 Safety & Certification Notice ................................................................................... 8
1.1 FCC 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
1.2 Certification Notice ·························································································································································12
Chapter 2 System Overview.......................................................................................................13
2.1 System Overview······························································································································································14
2.1.1 Overview.............................................................................................................................................................14
2.1.2 PrimAer 28GHz Design Consideration .................................................................................................15
2.2 System Network Configuration ·································································································································16
Chapter 3 System Configuration ..............................................................................................17
3.1 DU Figure and Configuration·····································································································································18
3.2 SU Figure and Configuration······································································································································19
3.3 Rectifier Details and Configuration ·························································································································21
3.4 DU, SU, Rectifier Connecting······································································································································23
Chapter 4 System Specification ................................................................................................25
4.1 System Specification·······················································································································································26
4.1.1 Downlink Specification.................................................................................................................................26
4.1.2 Uplink Specification.......................................................................................................................................27
4.2 Instrumental Specification ···········································································································································27
4.2.1 Structure and Type.........................................................................................................................................27
4.2.2 Material and Components .........................................................................................................................27
4.3 Electrical Specification ···················································································································································28
4.4 Environmental Specification..........................................................................................................................29
4.5 Antenna Specification····················································································································································30
4.5.1 DU Antenna.......................................................................................................................................................30
4.5.2 SU Antenna .......................................................................................................................................................30

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Chapter 5 System Installation ...................................................................................................31
5.1 Tools·······················································································································································································32
5.2 DU Installation···································································································································································35
5.2.1 Product Installation........................................................................................................................................35
5.2.2 Ground Cable Connection..........................................................................................................................38
5.2.3 Antenna Tilt.......................................................................................................................................................39
5.2.4 Optic Cable & Power Cable Connection.............................................................................................40
5.3 SU Installation ···································································································································································41
5.3.1 Product Installation........................................................................................................................................41
5.3.2 Ground Cable Connection..........................................................................................................................44
5.3.3 Antenna Tilt.......................................................................................................................................................44
5.3.4 Optic Cable & Power Cable Connection.............................................................................................46
5.4 Rectifier Installation ························································································································································47
5.4.1 Product Installation........................................................................................................................................47
5.4.2 Ground Cable Connection..........................................................................................................................51
5.4.3 Power Cable Connection.............................................................................................................................52
5.4.4 Other Installation Environment................................................................................................................53
Chapter 6 Local GUI(Graphical User Interface)......................................................................54
6.1 GUI Configuration····························································································································································55
6.1.1 DU Main Screen..............................................................................................................................................55
6.1.2 SU Main Screen...............................................................................................................................................59

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Figures
Figure 1. Network Configuration. ················································································· 16
Figure 2. DU Figure. ···································································································· 18
Figure 3. DU Port Configuration. ·················································································· 19
Figure 4. SU Figure. ···································································································· 20
Figure 5. SU Port Configuration.··················································································· 21
Figure 6. Rectifier Figure.····························································································· 22
Figure 7. Rectifier Port Configuration. ··········································································· 22
Figure 8. DU, SU Wiring Method - Fiber-Optic Cable ······················································ 23
Figure 9. DU, SU, Rectifier Wiring Method –Power Cable ··············································· 24
Figure 10. Required Space for DU Installation ································································ 35
Figure 11. DU Anchor Bolt Assemble for Wall Installation ··············································· 35
Figure 12. DU Wall Installation Assemble ······································································ 36
Figure 13. DU Pole Installation Assemble ······································································ 37
Figure 14. DU Ground Cable Connection ······································································· 38
Figure 15. DU Tilt ······································································································· 39
Figure 16. DU Optic Cable and Power Cable Connection ················································· 40
Figure 17. Required Space for SU Installation·································································41
Figure 18. SU Anchor Bolt Assemble ············································································· 41
Figure 19. SU Wall Installation Assemble ······································································· 42
Figure 20. SU Pole Installation Assemble ······································································· 43
Figure 21. SU Ground Cable Connection········································································ 44
Figure 22. SU Tilt. ······································································································· 45
Figure 23. SU_C Optic Cable and Power Cable Connection··············································· 46
Figure 24. SU_E Optic Cable and Power Cable Connection ··············································· 47
Figure 25. Required Space for Rectifier Installation ························································· 47
Figure 26. Rectifier Anchor Bolt Assemble ····································································· 48
Figure 27. Rectifier Wall Installation Assemble ······························································· 49
Figure 28. Rectifier Pole Installation Assemble ······························································· 50
Figure 29. Rectifier Ground Cable Connection ································································ 51
Figure 30. Rectifier Power Cable Connection ·································································· 52
Figure 31. Standing Pole or Mounting Tripod Pole ························································· 53
Figure 32. DU Main Screen ·························································································· 56
Figure 33. SU Main Screen ··························································································· 59

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Used Abbreviations
DU Donor Unit
SU_C Service Unit_Cascade
SU_E Service Unit_End
GUI Graphical User Interface
SISO Single Input Single Output
MIMO Multiple Input Multiple Output
ACLR Adjacent Channel Leakage Power Ratio
ALC Auto Level Control
AGC Auto Gain Control
EVM Error Vector Magnitude
3GPP 3rd Generation Partnership Project

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PrimAer 28GHz Operating Manual
Chapter 1
Safety & Certification Notice
1.1 FCC Warning Statements
1.2 Certification Notice

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Safety & Certification Notice
1.1 FCC Warning Statements
1.1.1 FCC Part 15.105 statement
-PrimAer has been tested and found to comply with the limits for a Class A digital device.
-These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment.
-PrimAer generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the FCC guidelines, may cause harmful interference to radio communications.
-Operation of this type of 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
-PrimAer should only be operated by approved integrator. The integrator should observe all written
warnings that are in the Operating Manual.
-The integrator who is tasked with handling, installation, operation, and servicing of the PrimAer
System must acquaint themselves with the Operator’s Manual prior to handling. 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 satisfy prescribed request items.
-To avoid serious injury, the integrator must turn off the main power switch before installing the
system or performing any maintenance related work.
-FRTek advises that this product not be disassembled without the assistance or guidance of FRTek
staff. Failure to do so may result in electric shock, malfunction of unit, or severe injury. Do not
disassemble, repair or modify product.

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PrimAer 28GHz Operating Manual
-Due to power dissipation, the remote unit may reach very high temperatures. Do not operate this
equipment on or close to any flammable or combustible materials. Always use caution when
servicing the unit.
-This product should only be used for the purpose specified by the manufacturer. Do not alter or
make 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
visible and are kept in a legible condition.
-The network provider needs to ensure that PrimAer is operated within the FCC OET Bulletin 65
standards regarding RF Emissions to avoid health hazards associated with radiation from the
antennas in the unit. Suggested remedies are “RF hazard” type signs.
Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, abrasives, or
any corrosive type products on the unit
Warning
Home/ personal use are prohibited
Warning
Obey all general and regional installation and safety regulations relating to performing work on
high voltage installations. Also, obey regulations and guidelines 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 strictly prohibited.

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PrimAer 28GHz Operating Manual
Warning
Product contains “Laser Radiation”. Never stare into the beam. Do not view it directly or with any
optical instruments.
Warning
Please be informed that the external temperatures of the unit can reach very high temperatures.
Please be careful. The label is attached to the front of the equipment and the PSU (Power Supply
Unit).
Warning
RF Radiation Exposure
Warning
This equipment complies with RF radiation exposure limits set forth for an uncontrolled
environment.
Warning
This equipment should be installed and operated with a minimum distance of 40 cm between the
radiator and your body.

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PrimAer 28GHz Operating Manual
•FCC WARNING
This equipment generates or uses radio frequency energy. Changes or modifications to this
equipment may cause harmful interference unless the modifications are expressly approved in the
instruction manual. The user could lose the authority to operate this equipment if an unauthorized
change or modification is made.
•[FCC] BOOSTER WARNING LABEL
WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES
and QUALIFIED INSTALLERS Only. You MUST have an FCC LICENSE or express consent of an FCC
Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties,
including penalties in excess of $100,000 for each violation.
1.2 Certification Notice
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 Parts 15 & 30
- 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.
Designed to comply IP66 standards with test data available upon request
Note
RESTRICTED ACCESS LOCATION: location for equipment where both of the following apply:
- access can only be gained by AUTHORIZED PERSONS 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
by authority responsible for the location

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PrimAer 28GHz Operating Manual
Chapter 2
System Overview
2.1 System Overview
2.2 System Network Configuration

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PrimAer 28GHz Operating Manual
System Overview
2.1 System Overview
2.1.1 Overview
PrimAer 28 is a 5G DAS (Distributed Antenna System) system that can provide and/or enhance high
quality telecommunications service both in-building & outdoors. The PrimAer System can provide
mmWave 28GHz frequency band coverage to both public area/facilities and private areas/facilities.
Some examples of locations that the PrimAer 28 system would be installed, but not limited to:
- Shopping Malls
- Hotels
- Campuses
- Airports
- Subways
- Stadiums and Convention Centers
- Utility poles near roads
The PrimAer system provides coverage for in-building and outdoor environments. A “proper RF
design” will provide a more accurate representation of the expected coverage.
System capable frequency :
- mmWave 28GHz SISO/MIMO
(27.5GHz ~ 28.35GHz, BW 850MHz)
The PrimAER system is configured with a Donor Unit (DU), a Service Unit (SU_C: Cascading unit or
SU_E: End unit), and a Rectifier. 1 DU can operate up to 4 service units connected in a cascade
configuration.

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2.1.2 PrimAer 28GHz Design Consideration
PrimAer 28 is configured as below, and the model name is as below.
Item
Model Name
FCC ID
Type
Donor Unit
FR-R5GAO38ADU
2AFEG-R5GAO38ADU
Outdoor Enclosure type
Service Unit
(Cascade)
FR-R5GAO33ASUC
2AFEG-R5GAO33ASUC
Outdoor Enclosure type
Service Unit
(End)
FR-R5GAO33ASUE
2AFEG-R5GAO33ASUE
Outdoor Enclosure type
Rectifier
FR-ERECD48A
-
Outdoor Enclosure type
The PrimAer DU receives the 28GHz 5G signal from the Base Station wirelessly, The DU then amplifies
the signal and provides 5G service to the SU. The SU then extracts the TDD sync signal received from
the base station and sends to each unit.
The modules on each unit are designed so that the configurations can be easily attached and
detached for module replacement and maintenance. For outdoor purposes, the DU, SU, and Rectifier
are designed with IP66 structure so that dust, pollutants, and insects cannot invade.
Item
DU
SU(Cascade)
SU(End)
Rectifier
Input Power
DC -53.3V
(from Rectifier)
DC -53.3V
(from Rectifier)
DC -53.3V
(from Rectifier)
AC 100V ~ 240V
Interface(Input)
RF
Optic
Optic
-
Interface(Output)
Optic
RF
RF
Power
Service
mmWave 28GHz 5G NR
-
Type
In-building /
outdoor
In-building /
outdoor
In-building /
outdoor
In-building /
outdoor

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2.2 System Network Configuration
PrimAer 28GHz network configuration shown below.
Figure 1. Network Configuration.
PrimAer receives a 28GHz wireless signal from a 5G base station to the DU, down converts to IF over
fiber, amplifies the signal then the SU up converts IF to 5G mmWave service.
PrimAer is configured with 3 units, the DU, SU, and Rectifier. The Rectifier supplies DC power to the
DU and SU, and is connected to the DU and SU with a power cable. Also, the DU and SU is connected
with a single fiber-optic cable, and multiple SU’s can also be connected in series through a single fiber-
optic cable.
The DU can support antenna beam forming to ±50˚(Up/down/left/right) through GUI.
The DU and SU can support antenna beam steering to ±50˚(Up/down/left/right) through GUI.
The DU and SU have Beamwidth ±30˚in H-Plane/±15˚in V-Plane
The DU and SU have internal Dual Polarized Antennas that support MIMO.
.

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Chapter 3
System Configuration
3.1 DU Figure and Configuration
3.2 SU Figure and Configuration
3.3 Rectifier Figure and Configuration
3.4 DU, SU, Rectifier Connecting

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System Configuration
3.1 DU Figure and Configuration
The DU is in a single enclosure with a mounting bracket on the back enabling wall or pole attachment.
The DU receives a MIMO 5G base station signal over the air, converts it into an optical signal, and
sends it to the SU over the Fiber-Optic cable. (Downlink) It also converts the optic signal received from
SU over the fiber-optic cable converts this to 28GHz 5G RF which is sent to the base station through
the intenna. (Uplink)
The DU is configured with the antenna, DIFM, DAOM, EMS boards. The rectifier powers the DU
through the power port with-53.3V DC power.
Figure 2. DU Figure.
Item
Content
Remark
Size
200 x 320 x 190mm (7.87 x 12.59 x 7.48")
Bracket included
Weight
Approx. 5.48kg (12.08lb)
Bracket included
Input Interface
Intenna
18dBi

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Output Interface
Optic
2 Ports
Figure 3. DU Port Configuration.
No
Content
①
Port that transmit/receives optic signal
②
Port to monitor T-SYNC
③
Port to monitor Downlink SISO Path RF signal
④
Antenna port to transmit external signal from the Modem
⑤
Port to monitor Downlink MIMO Path RF signal
⑥
Port to monitor internal 10MHz Reference signal
⑦
Port to connect WEB GUI
⑧
Port to supply -53.3V power from the Rectifier
⑨
Port to connect GUI (Connected when cover is open)
⑩
Internal Antenna, transmit/receive RF wireless signal
3.2 SU Figure and Configuration
The SU consists of One enclosure with a mounting bracket enabling wall attachment. The SU receives
optic signal from the DU through Fiber-Optic cable, converts into 28GHz RF signal and sends the 5G
signal through the antenna. (Downlink) It also converts the 28GHz RF signal received from the UE into
optic signal and sends to the DU through Fiber-Optic cable. (Uplink)
When cascading there is the SU_C that connects between the DU and SU_E, the figure and
configuration is the same.

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The SU is configured with the Intenna, SIFM, SAOM module. The rectifier powers the SU through the
power port with-53.3V DC power
Figure 4. SU Figure.
Item
Content
Remark
Size
200 x 320 x 190mm (7.87 x 12.59 x 7.48")
Bracket included
Weight
CASECADE: Approx. 5.78kg (12.74lb)
END: Approx. 5.48kg (12.08lb)
Bracket included
Input Interface
Intenna
18dBi
Output Interface
Optic
1-2 Ports