M/A-Com OpenSky 800 Installation Manual
Rhein Tech Laboratories, Inc. Client: M/A-COM, Inc.
360 Herndon Parkway Model:
Suite 1400 ID’s: BV8MBS800B075/3670A-MBS800B
Herndon, VA 20170 Standards: FCC Part 90/IC RSS-119
http://www.rheintech.com
Report #: 2008072
OpenSky 800 MHz Base Station
Appendix K: User Manual
Please refer to the following pages.
38 of 62
Installation Manual
MM102225V1
Rev. B, Jul-05
Base Station/Tower Site
MM102225V1, Rev. B
MANUAL REVISION HISTORY
REV DATE REASON FOR CHANGE
A 2003 Initial release.
B Jul. 2005 Changed Accuracy Test, Step 7, added Caution added footnote.
M/A-COM Technical Publications would particularly appreciate feedback on any errors that might be found in
this document, and suggestions on how it could be improved. Submit your comments and suggestions to:
Wireless Systems Business Unit
M/A-COM, Inc.
Technical Publications
221 Jefferson Ridge Parkway
Lynchburg, VA 24501
CREDITS
OpenSky is a registere d trademark of M/A-COM, Inc.
MATE-N-LOK is a registered trademark of Tyco Electronics.
PolyPhaser is a registered trademark of PolyPhaser Corporation.
Cisco is a registered trademark of Cisco System s, Inc.
Agilent is a registered trademark of Agilent Technologies, Inc.
All other brand and product names are registered trademarks, trademarks, or service marks of their respective holders.
fax (434) 455-6851
techpubs@tycoelectronics.com
NOTICE!
The voice coding technology embodied in this product is protected by intellectual property rights including patent rights,
copyrights, and trade secrets of Digital Voice Systems, Inc. The user of this technology is explicitly prohibited from
attempting to decompile, reverse engineer, or disassemble the Object Code, or in any other way convert the Object Code
into a human-readable form.
NOTICE!
This manual covers products manufacture d and sol d by M/A- CO M, Inc.
NOTICE!
Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier.
Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the
manufacturer could void the user's authority to operate the equipment in addition to the manufacturer's warranty.
NOTICE!
The software contained in this device is copyrighted by M/A-COM, Inc. Unpublished rights are reserved under the
copyright laws of the United States.
This manual is published by M/A-COM, Inc. without any warranty. Improvements and changes to this manual necessitated by typographical errors,
inaccuracies of current information, or improvements to programs and/or equipment, may be made by M/A-COM, Inc., at any time and without notice.
Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of M/A-COM, Inc.
Copyright© 2003-2005, M/A-COM, Inc. All rights reserved.
2
MM102225V1, Rev. B
TABLE OF CONTENTS
Page
1.0 GENERAL INFORMATION.............................................................................................................................6
1.1. INTRODUCTION.............................................................................................................................................6
1.2. REFERENCE MATERIAL...............................................................................................................................6
1.3. TOOLS AND TEST EQUIPMENT ...................................................................................................................7
1.4. TOOLS REQUIRED FOR SPECIFIC TASK....................................................................................................9
1.5. SAFETY INFORMATION ...............................................................................................................................9
1.6. SAFETY SYMBOLS ......................................................................................................................................11
1.7. OPENSKY BASE STATION EQUIPMENT SPECIFICATION (GENERAL)....................................................12
2.0 SITE PREPARATION......................................................................................................................................13
2.1 INTRODUCTION...........................................................................................................................................13
2.2 ANTENNA SYSTEM .....................................................................................................................................13
2.2.1 Antenna Mounting ...................................................................................................................................13
2.2.2 Transmission Lines..................................................................................................................................13
2.3 TOWER TOP AMPLIFIER.............................................................................................................................15
2.4 SITE REQUIREMENTS.................................................................................................................................15
2.4.1 Floor Plan ...............................................................................................................................................15
2.4.2 Operating Environment...........................................................................................................................15
2.4.3 Electrical Power......................................................................................................................................16
2.4.4 Equipment Room Grounding...................................................................................................................16
2.5 ANTENNA SYSTEM QUALITY AUDIT......................................................................................................16
3.0 BASE STATION INSTALLATION ................................................................................................................18
3.1 BEFORE INSTALLATION OCCURS ...........................................................................................................18
3.2 BASICS...........................................................................................................................................................18
3.3 SECURING EQUIPMENT RACKS TO THE FLOOR...................................................................................19
3.4 CABLING EQUIPMENT RACK COMPONENTS........................................................................................22
3.4.1 Interrack Cable Connections...................................................................................................................23
3.4.2 Connecting Power Source and External Equipment................................................................................27
3.4.3 Connect Cabling for the Power Source...................................................................................................28
3.4.4 Connect Grounding Cables to Equipment Racks.....................................................................................30
3.4.5 Connect Antenna Cables to Equipment Racks.........................................................................................31
3.4.6 Connect the T1 Network..........................................................................................................................32
3.4.7 Site Clean Up...........................................................................................................................................32
3.5 COMPLETING THE INSTALLATION.........................................................................................................32
4.0 SITE TEST PROCEDURES ............................................................................................................................33
4.1 PURPOSE AND SCOPE.................................................................................................................................33
4.2 OVERVIEW OF OPENSKY BASE SITE EQUIPMENT...............................................................................34
4.3 TEST METHODOLOGY................................................................................................................................34
4.4 PREPARATION..............................................................................................................................................35
4.5 RECORDING TEST RESULTS......................................................................................................................35
4.6 BASE SITE BLOCK DIAGRAM....................................................................................................................35
4.7 INSPECTION..................................................................................................................................................36
4.7.1 Pre-test Inspection...................................................................................................................................36
4.7.2 Interrack Cabling ....................................................................................................................................37
4.7.3 New Cabling............................................................................................................................................39
5.0 EQUIPMENT CONFIGURATION.................................................................................................................42
6.0 PERFORMANCE TESTING...........................................................................................................................43
6.1 ANALOG RECEIVE TESTS (MANDATORY).............................................................................................43
3
MM102225V1, Rev. B
TABLE OF CONTENTS
Page
6.1.1 12dB SINAD Receiver Sensitivity ........................................................................................................... 43
6.2 ANALOG PERFORMANCE TESTING OF TOWER TOP AMPLIFIERS................................................... 46
6.2.1 Tower Top Amplifier Performance Test.................................................................................................. 46
6.3 TOWER TOP LOW NOISE AMPLIFIER (TTA) GAIN MEASUREMENT (REQUIRED) ......................... 47
6.4 ANTENNA 20DB QUIETING TEST (MANDATORY)................................................................................49
6.5 BASE STATION TRANSMIT (BSX) FREQUENCY ACCURACY TEST (MANDATORY)..................... 52
6.6 TRANSMIT DEVIATION (MANDATORY)................................................................................................ 53
6.7 TX POWER CALIBRATION (MANDATORY) ...........................................................................................54
6.8 HPA TX POWER BENCHMARKS – BIRD VSWR –57DBM PORT (REQUIRED)................................... 56
7.0 OPERATIONAL TESTING............................................................................................................................ 59
7.1 STANDALONE SITE ACCEPTANCE (MANDATORY)............................................................................ 59
7.1.1 Preparation - Remove ALL Network Connectivity.................................................................................. 59
7.1.2 Procedure for Single Site Trunking.........................................................................................................59
7.2 NETWORK CONNECTIVITY - BACKBONE COMMUNICATIONS (REQUIRED)................................ 60
7.3 T1 QUALITY LINK....................................................................................................................................... 62
7.4 FINAL DEPARTURE CHECK...................................................................................................................... 63
7.4.1 Power Failure......................................................................................................................................... 64
7.4.2 Multi Site Trunking................................................................................................................................. 65
8.0 COMMON TERMS.......................................................................................................................................... 66
APPENDIX A................................................................................................................................................................ 70
ATTACHING MIL-SPEC (MS) CONNECTOR TO END OF CONTROL CABLE/SOLDERING TOWER TOP
AMPLIFIER CONTROL CABLE.............................................................................................................................. 70
APPENDIX B................................................................................................................................................................72
CONNECTING A PC TO A BASE STATION........................................................................................................... 72
APPENDIX C................................................................................................................................................................ 74
EQUIPMENT SERIAL NUMBERS...........................................................................................................................74
APPENDIX D................................................................................................................................................................ 76
SITE ACCESS SERVER CONFIGURATION...........................................................................................................76
APPENDIX E................................................................................................................................................................82
TYPICAL MOBILE CONFIGURATION.................................................................................................................. 82
APPENDIX F................................................................................................................................................................ 84
TYPICAL BASE STATION CONFIGURATION..................................................................................................... 84
APPENDIX G ............................................................................................................................................................... 88
TVARB STATUS....................................................................................................................................................... 88
APPENDIX H ............................................................................................................................................................... 90
VERIFICATION TESTING – TRANSMIT FILTER TUNING................................................................................. 90
APPENDIX J.................................................................................................................................................................92
INSTALLER PROFILE DATA SHEET.....................................................................................................................92
APPENDIX K ............................................................................................................................................................... 94
ANTENNA SYSTEM INSTALLATION CHECKLIST............................................................................................ 94
4
MM102225V1, Rev. B
TABLE OF CONTENTS
Page
APPENDIX L.................................................................................................................................................................96
RECORDED DATA SHEET ......................................................................................................................................96
FIGURES
Figure 3-1: Bolt Assembly Hardware............................................................................................................................20
Figure 3-2: Nylon Washer and Bolt Assembly..............................................................................................................20
Figure 3-3: Concrete Floor Mounting............................................................................................................................20
Figure 3-4: Bolt Assembly Used to Bolt Rack to Concrete Floor................................................................................. 21
Figure 3-5: Raised Floor Rack Attachment...................................................................................................................21
Figure 3-6: Possible Rack-Up of Tower Site Rack #1 For One To Ten Base Stations Plus Backup And ISM Radio
Options........................................................................................................................................................ 22
Figure 3-7: Possible Rack-Up of Tower Site Rack #2 With Separate TX/RX Antenna Option For Base Stations #1
To #4 Of Six Maximum Plus Backup Option.............................................................................................23
Figure 3-8: HPA RF Input Connection..........................................................................................................................24
Figure 3-9: DCX RF Output Connection.......................................................................................................................24
Figure 3-10: Wire Bundles with DCX and Base Station Alarm Wiring........................................................................25
Figure 3-11: DPS Alarm Punchblock Connector .......................................................................................................... 25
Figure 3-12: RS-485 Main Cable and Pigtail Plug Connected to DCX.........................................................................26
Figure 3-13: RS-232 Connector from Alarm Module to Bird Power Monitor (VSWR)............................................... 26
Figure 3-14: Cable Connecting the Tower-Top Amplifier Control Box to the Input port of the Multi-Coupler...........27
Figure 3-15: Cable Tray Layout.................................................................................................................................... 27
Figure 3-16: DC Power Connection Found in Each Rack - Black (DC Return) and Red (-48 Volt) wires...................28
Figure 3-17: -48 Volt Breaker Distribution Panel of the DC Power Supply - Red Wire............................................... 28
Figure 3-18: DC Return Distribution Bar - Black Wires...............................................................................................29
Figure 3-19: Properly Labeled OpenSky Circuit Breakers in the Distribution Panel....................................................29
Figure 3-20: Single Point Ground That is Found on Each Rack................................................................................... 30
Figure 3-21: Ground Bar............................................................................................................................................... 30
Figure 3-22: Dual Antenna PolyPhasers (Surge Protectors)..........................................................................................31
Figure 5-1: 3-Channel Base Station with Tower Top Amplifier Block Diagram..........................................................35
5
MM102225V1, Rev. B
1.0 GENERAL INFORMATION1
1.1. INTRODUCTION
This manual specifies procedures for installing and testing OpenSky® Base
Station/Tower equipment racks at a communication site. This manual is intended for
M/A-COM and contracted personnel responsible for supervising or conducting the
equipment rack installation process.
Before attempting to install or checkout this equipment, become familiar with the
contents of this manual. This manual is divided into the following sections:
General Information - includes a list of related reference material, a list of test
equipment required for testing, aligning and maintaining radio equipment, safety
information and OpenSky Base Station equipment specifications.
Site Preparation - identifies antenna system installation practices for the antenna/tower,
transmissions lines connected to the equipment shelter, site requirements and facility
preparation, site requirements and an antenna system audit.
Base Station Installation - provides instructions for unpacking and physically installing
the Base Station equipment cabinets and interrack cabling.
Site Test Procedures - provides verification testing, equipment configuration,
compliance testing, performance testing, operational testing, network connectivity and
final operating capability.
System Configuration - provides detailed instructions for setting up the equipment prior
to applying power.
System Functional Checkout Procedures - provides detailed instructions for verifying
the overall operation of the equipment as a system.
Table of Common Terms - identifies and defines common terms used throughout this
manual.
1.2. REFERENCE MATERIAL
It may be necessary to consult one or more of the following manuals. These manuals will
also provide additional guidance if you encounter technical difficulties during the
installation or testing processes.
Title
Publication Number
• Digital Base Station Controller/Transceiver (DCX)
Maintenance Manual ................................................. MM102425V1
• High Power Amplifier (HPA-75)
Maintenance Manual .................................................
• Antenna System Maintenance Manual.......................
• Standard For Site Grounding and Protection.............
MM102445V1
LBI-38983
AE/LZT 123 4618/1
1
Taken from M/A-COM Drawing, No. AP7079, Rev.-
6
Title Publication Number
• OE-100 Outdoor Enclosure........................................
• M/A-COM, Inc. Quality Standards Manual...............
• Rack Breaker Panel Maintenance Manual.................
• RX Amplifier Maintenance Manual ..........................
• Duplexer and Power Sensor
Maintenance Manual .................................................
• TX Combiner Maintenance Manual ..........................
1.3. TOOLS AND TEST EQUIPMENT
The items listed in Table 1-1: Tools and Test Equipment are the tools and test equipment
needed during installation, alignment, testing, and maintenance of the OpenSky Base
Station/Tower equipment racks. Test equipment other than that recommended may be
substituted, providing it is electrically equivalent in accuracy and operating range, and
capable of maintaining the tolerances specified for the recommended test equipment.
Table 1-1: Tools and Test Equipment
MM102225V1, Rev. B
MM102226V1
GQM0221
(Not Available)
(Not Available)
(Not Available)
(Not Available)
NAME OF TOOL USE/COMMENTS
Assorted Cabling
Hardware (lugs, bolts,
connectors, clamps, and so
on)
Assorted Hand Tools
Assorted Power Tools
Bolting Template
DC Power Cable
Equipment Cart (1,200
pound recommended
capacity)
Ground Cable (#6, green)
Insulating Bushings
Knife, Shears, and so on
Lag Bolts
One (3/4”) inch Drop-Down
Expanding Anchors
As needed for rack installation
As needed for rack installation
As needed for rack installation
Template for bolt placement on enclosure floor for rack
fasteners
For bringing power to equipment racks
Moving equipment racks
For grounding equipment racks
Used to insulate equipment racks from the bolts securing the
racks to cement and raised floors
Cutting strapping around rack packaging
Bolting equipment racks to wood enclosure floor
Bolting equipment racks to enclosure floor
Permanent Marker
Shim Material
7
Marking locations on enclosure floor for rack fasteners
Leveling equipment racks
MM102225V1, Rev. B
NAME OF TOOL USE/COMMENTS
Soft Jaw Connector Pliers
Superflex Antenna Cable
Torque Wrench
Trash Bags
Hammer Drill, ½” chuck
Set tool
Basic hammer
Crimpers
Greenlee Knock-Out tool
9/16” Socket
½” Socket
7/16” Socket
Tightening or loosening N-type connectors
Crescent Pliers: M/A-COM Part Number 529-10 or Tessco Part
Number 83040
To convey antenna signals to equipment racks within a shelter
Tightening SMA connectors
Preset to 5/16-inch, 8 inch-pounds of torque: M/A-COM Part
Number 1055419-1 (2098-5065-54) or Tessco Part Number
14682, 1 Newton/Meter torque
For removal of debris from site
Used to drill holes for anchors in concrete floor
Used to expand anchors in the floor
Used with set tool to expand anchors in the floor
Used to crimp on lugs to ground wire and power leads
Used to punch out hole on top of rack for entry of ground wire
Used to secure rack to the floor and power leads to bus bar on
rack
Used to secure ground to bus bar
Used to bolt racks together
Tape measure
Soldering gun
Heat gun
12” wire ties
¾” anchors (tapcon)
1” bolts
Crimp on 1 hole lugs
Crimp on 2 hole lugs
T1 Crimper
Labeling System for field
use
Insulating washers
Service Monitor
Network Analyzer
Used to measure proper distance from wall to rack
Used to solder leads of control cable connector
For shrink tubing with control cable connector
AMP Hand Tool, Part Number 2-231652-0
Recommended unit: P-Touch Labeling System, Model PT-330
Between floor and bottom of rack between anchor bolts and
rack
HP 8920
HP 8752C (Used in conjunction with HP 8920 for Tower Top
Amplifier)
8
1.4. TOO LS REQUIRED FOR SPECIFIC TASK
Generally, professional judgment can be used about the fitness of a tool for a given
purpose. In some cases, however, specific tools must be used to complete installation
steps properly. Failing to use the correct tool in these cases could damage equipment or
leave crucial assembly steps incomplete. The tools for specific steps in base station
installation are as follows:
Table 1-2: Tool for Specific Tasks
ASSEMBLY STEP TOOL REQUIRED
MM102225V1, Rev. B
Tightening SMA-Type
connector
Loosening SMA-type
connectors
Tightening or loosening NType connectors
Look for notes and cautions in the installation procedures that remind the installer when
these tools must be used to complete an installation step properly.
1.5. SAFETY INFORMATION
Personnel installing OpenSky rack-mounted components at a communication site should
be aware of a number of potential hazards. These hazards may be associated with
OpenSky electronic and Radio Frequency (RF) equipment, radio antennas used with
these components, or with the environments in which components are housed. Keep in
mind that when working in the field, hazards associated with equipment, antennas, or
environmental conditions that are part of applications other than OpenSky radio may also
present risks.
Hazards you may encounter include the following:
Eight Inch-Pound Torque Wrench
M/A-COM Part Number 1055419-1 (2098-5065-54) or Tessco
Part Number 14682, 1 Newton/Meter torque
5/16" (8mm) Open-End Wrench
SoftJaw Connector Pliers
Crescent Pliers, M/A-COM Part Number 529-10 or Tessco Part
Number 83040
• RF emissions
• Electrical shock
• Lifting of heavy objects
• Falling objects
• Falls
• Poor ergonomic design
• Chemical exposure
Working around the hazards listed above does not necessarily pose any outstanding risk
to health or safety - however, knowledge of these possible hazards is vital to working
safely.
9
MM102225V1, Rev. B
The safety guidelines and precautions presented in this manual do not replace M/ACOM's specific requirements. The primary responsibility for health and safety standards,
practices and guides lines in a M/A-COM project lies with the Environmental, Health &
Safety (EHS) department.
All M/A-COM managers, supervisors, or subcontractors responsible for work associated
with OpenSky equipment must be completely familiar with and prepared to comply with
all applicable EHS guidelines and requirements. Although M/A-COM's policy requires
that all contractors and visitors must be adequately trained prior to working on any M/ACOM project, this does not mean M/A-COM is responsible for conducting or providing
this training.
The following safety precautions must be observed during all phases of operation,
service, and repair of this product. Failure to comply with these precautions or with
specific warnings elsewhere in this manual violates safety standards of design,
manufacture, and intended use of the product. M/A-COM assumes no liability for the
customer’s failure to comply with these standards.
1. SAVE THIS MANUAL - It contains important safety and operating instructions.
2. Before using this equipment, please follow and adhere to all warnings, safety and
3. DO NOT expose equipment to rain, snow or other type of moisture.
operating instructions located on the product and in the manual.
4. Care should be taken so objects do not fall or liquids do not spill into the equipment.
5. DO NOT expose equipment to extreme temperatures.
6. DO NOT use auxiliary equipment not recommended or sold by M/A-COM. To do so
may result in a risk of fire, electric shock or injury to persons.
7 GROUND THE EQUIPMENT-To minimize shock hazard, the station equipment
cabinet must be connected to an electrical ground.
IF the equipment supplied is equipped with three-conductor AC power cords, these
power cords must be plugged into approved three-contact electrical outlets with the
grounding wires firmly connected to an electrical ground (safety ground) at the
power outlet. The power cords must also meet International Energy Commission
(IEC) safety standards.
8. To reduce risk of damage to electrical cords, pull by plug rather than cord when
disconnecting a unit.
9. Make sure all power cords are located so they will not be stepped on, tripped over or
otherwise subjected to damage or stress.
10. An extension cord should not be used unless absolutely necessary. Use of an
improper extension cord could result in a risk of fire and electric shock. If an
extension cord must be used, ensure:
a. The pins on the plug of the extension cord are the same number, size, and shape
as those of the plug on the power supply.
b. The extension cord is properly wired, in good condition, and
c. The wire size is large enough for the AC ampere rating of unit.
10
MM102225V1, Rev. B
11. DO NOT operate equipment with damaged power cords or plugs - replace them
immediately.
12. DO NOT operate this product in an explosive atmosphere.
13. To reduce risk of electric shock, unplug unit from outlet before attempting any
maintenance or cleaning.
14. DO NOT operate this product with covers or panels removed. Refer all servicing to
qualified service personnel.
15. Use only fuses of the correct type, voltage rating and current rating as specified in the
parts list. Failure to do so can result in fire hazard.
16. GROUNDING AND AC POWER CORD CONNECTION - To reduce risk of
electrical shock use only a properly grounded outlet. The system components are
equipped with electric cords having an equipment grounding conductor and a
grounding plug. Be sure all outlets are properly installed and grounded in accordance
with all local codes and ordinances.
17. DANGER - Never alter the AC cord or plug. Plug into an outlet properly wired by a
qualified electrician. Improper connection or loss of ground connection can result in
risk of an electrical shock.
18. ELECTROSTATIC DISCHARGE SENSITIVE COMPONENTS - This station
contains CMOS and other circuit components, which may be damaged by
electrostatic discharge. Proper precaution must be taken when handling circuit
modules. As a minimum, grounded wrist straps should be used at all times when
handling circuit modules.
1.6. SAFETY SYMBOLS
The WARNING symbol calls attention to a procedure, practice, or the like,
which, if not correctly performed or adhered to, could result in personal
injury. Do not proceed beyond a WARNING symbol until the conditions
WARNING
CAUTION
NOTE
identified are fully understood or met.
The CAUTION symbol calls attention to an operating procedure, practice, or
the like, which, if not performed correctly or adhered to, could result in
damage to the equipment or severely degrade the equipment performance.
The NOTE symbol calls attention to supplemental information, which may
improve system performance or clarify a process or procedure.
11
The ESD symbol calls attention to procedures, practices, or the like, which
could expose equipment to the effects of Electro-Static Discharge. Proper
precautions must be taken to prevent ESD when handling circuit modules.
MM102225V1, Rev. B
1.7. OpenSky BASE STATION EQUIPMENT SPECIFICATION
(General)
Type: Indoor Cabinet 83 Inch Floor Mount
Size:
Height: 83 inches (77 inches usable)
Width: 22 inches
Depth: 24 inches
Number of Rack Units (RU): 44 RU available
Weight (Approximate) Depending on the number of RF
channels installed, the weight could
range from 350 to 500 LBS for the
rack with the HPA's. Usually Rack #2
is the HPA rack.
Operating Temperature
(Full spec performance per EIA/TIA603)
Note: Some third party equipment is
only rated for 0ºC to +50ºC
Input Power Source: 120 VAC (±20%), 60 Hz Or
-48 VDC
-30ºC to +50ºC (-22ºF to +122ºF)
12
MM102225V1, Rev. B
2.0 SITE PREPARATION
2.1 INTRODUCTION
This section provides instructions for preparing the site and other installation items,
which must be completed prior to installing OpenSky Communication equipment. The
areas covered include the following:
Antenna System - This includes installation of the antenna tower, receive and transmit
antennas, tower top amplifier and the installation of the transmission lines from the
antenna to the tower top amplifier to the equipment shelter.
Site Requirements - Information is provided concerning various factors, which may
affect the physical location of the equipment facility.
Facility Preparation - This section provides information for preparing the facility prior
to installing the equipment. This information includes proposed equipment layout,
environment, electrical power, equipment room grounding and telephone line installation.
2.2 ANTENNA SYSTEM
This section covers installation of the antenna system, including RF cables from the
antennas to the equipment room wall feedthrough.
Antenna systems are generally installed by crews trained and equipped for working on
antenna towers. As a result, this manual assumes the Antenna systems are installed by
crews with the specialized equipment and skills required for working on towers and
installing the antenna cables. However, it may be necessary for the system installer to
provide information and directions to the crew installing the antenna system and to verify
proper installation.
2.2.1
The antenna tower must allow antenna mounting that provides isolation of at least 25 dB
between the TX and RX antennas. This is necessary to avoid interference in the trunked
receivers caused by the trunked transmitters. An isolation of greater than 25 dB is easily
obtained by placing one antenna directly above the other on the tower (minimum 10-foot
separation).
2.2.2
When installing the transmissions lines, refer to the diagrams contained in Antenna
System Maintenance Manual LBI-38983.
2.2.2.1 Length
Antenna Mounting
Transmission Lines
The length of the main coaxial cable for each antenna is planned as a continuous run with
no connectors or splices between the antenna and the equipment room. Each cable
includes a 50-foot allowance for the distance from the bottom of the tower to the
equipment room. Smaller diameter, more flexible coaxial cables are used at both ends of
the main coaxial cable to facilitate installation.
13
MM102225V1, Rev. B
2.2.2.2 Minimum Bending Radius
Always adhere to the minimum bending requirements provided by the manufacturer. For
Andrew Products, the values are:
CABLE SIZE BENDING RADIUS
1/4-inch
1/2-inch
7/8-inch
1-5/8-inch
1-inch (25 mm)
1.25-inch (32 mm)
10-inches (250 mm)
20-inches (510 mm)
2.2.2.3 Hoisting Grips
Hoisting grips provide the means to attach a lifting mechanism to the coaxial cable
without damaging the cable. Each hoisting grip is capable of safely lifting 200 feet of
cable without causing damage. Therefore, one hoisting grip is required for every 200-foot
section of cable. The grips may be left attached to the cable after the cable installation is
completed.
Some situations may require more hoisting grips, such as:
• An installation to a tower which is on top of another structure.
• Any installation where the length of cable that must be lifted is greater than the
height of the tower.
In these situations, additional hoisting grips should be ordered.
14
WARNING
Under NO conditions should RF connectors be used to attach a rope or cable.
2.2.2.4 Hangers and Adapters
Coaxial cables on the tower should be secured at intervals of 3 feet (maximum).
Securing 7/8-inch and 1 5/8-inch diameter coaxial cables is accomplished by using either
hangers or hanger-adapter combinations. The hangers secure the cables to the tower
structure by using prepunched holes or attachment adapters.
When the tower structure is prepunched with 3/4-inch holes, snap-in hangers are used
(preferred method).
When the tower is prepunched with 3/8-inch holes, the hanger is secured by a 3/8-inch
bolt.
For towers without prepunched holes, the hangers are attached with adapters. The type of
adapter depends on the type of tower structure. Adapters are available for either angle
tower members or round tower members.
MM102225V1, Rev. B
Adapters for each antenna system are selected when ordering the system. If the coaxial
cable must be attached to a structure that is not compatible with any of the above hangers
or adapters, then additional materials or other special considerations may be required.
To secure 1/4-inch or 1/2-inch vertical or horizontal coaxial cables of any size, use UV
resistant, black nylon cable ties.
2.2.2.5 Weatherproofing
A kit of weatherproof tape is provided to protect coaxial connectors from the outside
elements. One roll of tape is sufficient to weatherproof four exposed outside connector
joints (More than four are required with a Top Tower Antenna).
2.2.2.6 Antenna Grounding
Grounding kits are installed to prevent the radio system from being damaged by
lightning. A grounding point should be installed at the top end of each coaxial cable run
on the tower. A second grounding point should be installed on each cable at the bottom of
the tower and a third grounding point on the cable at the point where the cable enters the
building, if the tower-to-building length is greater than 20 feet. For cable runs on the
tower greater than 200 feet, additional grounding points should be installed at each 200foot interval. Grounding points should be installed at the Tower Top Amplifier as well.
2.3 TOWER TOP AMPLIFIER
The Tower Top Amplifier (TTA) should be installed near the receive antenna in order to
improve the receive (inbound) channel performance. The amplifier should be mounted to
the tower structure with corrosion resistant hardware and grounded to the tower structure
with a #6 AWG solid or stranded copper conductor. All TTA ground connections,
whether to tower frame (angular or circular) or a tower ground buss, should be made with
corrosion resistant hardware.
For the TTA a "drip loop" in the RF cable from the antenna is recommended.
2.4 SITE REQUIREMENTS
This section provides information for preparing the facility prior to installing the
equipment. This information includes proposed equipment layout, environment, electrical
power and telephone line installation.
2.4.1
Direct access to the area (for antenna cables and personnel) between the tower and the
equipment room is necessary. Standard floor plans for the equipment cabinets are sideby-side cabinets. Lengths of interconnect cables supplied are based on these standard
floor plans. If a floor plan other than a standard floor plan is used, longer interconnect
cables may be required.
Floor Plan
2.4.2
The equipment room where the base station equipment is installed must meet the
environmental conditions listed in the Station Specifications section of this manual.
15
Operating Environment
MM102225V1, Rev. B
Although the temperature requirements for individual pieces of trunked equipment may
be broader, when several units are assembled together in a cabinet more heat is generated.
Because of this condition, the ambient room temperature outside the cabinet must be
lowered to ensure the temperature inside the cabinet does not exceed the limits for the
equipment.
2.4.3
Normally, OpenSky equipment is powered by –48 VDC. If the OpenSky cabinet is
equipped with an AC power supply and an AC power cord, a 20-amp circuit breaker for
each AC supply is recommended.
Receptacles must be installed within reach of the power cord(s). This can be on the wall
behind the cabinets, in the floor under the cabinets, or in the cabinet top cable ducts. Each
station power supply power cord is about 3 meters (9.8 feet) long, starting at the back of
each power supply (two or three different heights) within the rear of each station cabinet.
Each cord plugs into an AC Outlet which has a cord length of about 3 meters (9.8 feet)
long.
When required, the AC power supplies are omitted from the station cabinet. In this case,
DC power must be supplied to the base stations from an external -48 VDC power source
through a separate 30-amp circuit breaker for each base station.
Additional equipment may be required if other types of power sources are used, or if the
power source is not within reach of the individual AC power cords.
2.4.4
Ensure all equipment and facilities meet the requirements for grounding and lightning
protection.
Installation Manual AE/LZT 123 4618/1 - Standard For Site Grounding and Protection
provides instructions for proper grounding of sites and radio equipment. These
procedures should be observed in order to protect the equipment and service personnel
from lightning and other sources of electrical surges. This manual is included as part of
system documentation.
Electrical Power
Equipment Room Grounding
2.5 ANTENNA SYSTEM QUALITY AUDIT
Before installation of the antenna begins fill out APPENDIX J- INSTALLER PROFILE
DATA SHEET. After the Antenna System is installed it should be inspected before the
installers leave. A checklist of tasks performed on the antenna system is provided in
APPENDIX K - ANTENNA SYSTEM INSTALLATION CHECKLIST. Be sure to
complete this visual inspection before
corrected.
1. Using field glasses (if necessary) view the Antenna System from various positions on
the ground. Using copies of the Antenna System Installation Checklist found in
APPENDIX K, fill out a checklist for each antenna as you go through the following
inspection procedure. This will provide a record of the inspection, and of some
antenna information for future reference.
2. Record the make of antenna.
3. Record the type of antenna (omni or directional).
16
the installers leave, so any obvious errors can be
MM102225V1, Rev. B
4. Record the design gain of the antenna.
5. If the antenna is directional, record the bearing of the main lobe, using the magnetic
declination for True North. If it is Omni, write "Omni" in the data entry line.
6. Record the height of the antenna above ground.
7. Confirm that cable-hoisting grips were installed as required to prevent damage to the
coaxial cable. Hoisting grips should have been installed at the antenna end of the
cable plus one for each 200 feet of cable length.
8. Confirm the cable is secured to the tower at intervals, which do not exceed 3 feet.
9. Confirm the cable is grounded at the top of the tower.
10. Confirm the cable is grounded at the point where it leaves the tower.
11. Confirm the cable is grounded at the point where it enters the building.
12. Confirm the coaxial cable run looks OK. The cable must be tight (nothing to flap in
the breeze), have no dings or kinks, be one continuous run (no connectors or splices),
and not exceeding the minimum bending radius on any bend.
13. Confirm the cable weather tight feedthrough is properly installed where the cable
enters the building.
14. Confirm the coaxial connectors have been properly weather sealed.
15. Confirm the cable entrance to the building has been properly weather sealed.
17
MM102225V1, Rev. B
3.0 BASE STATION INSTALLATION
The following sections present the steps required for installation of populated OpenSky
base station equipment racks at a communications site.
To a certain extent, installations must be planned site-by-site, because of the wide variety
of installation conditions and configurations. Installers will encounter many types of
equipment enclosures and tower site equipment configurations. The Site Deployment
Order (SDO) should include an accurate site layout map, information to designate rack
locations, and other necessary installation information.
3.1 BEFORE INSTALLATION OCCURS
Before the antenna installation date, collect the information from the Site Deployment
Order specific to site access. Site-specific information includes the following:
• Per mission to access the site
• Directions to the site
• Keys and lock combinations to access the site and equipment shelter, or points of
contact to obtain them
• A drawing or description of each sit e showing where the equipment is to be installed
inside the enclosure
• Information about work practices needed to work safely at the site
The installation procedure below assumes that the installation team has secured
permission to access the communications site and has obtained the necessary keys or lock
combinations.
Keep working environment clean!
Control dust, dirt, and shavings for safety, and to protect equipment.
CAUTION
Be sure to follow installation procedures carefully!
3.2 BASICS
Generally, the OpenSky base station fits into two or more equipment racks. Each rack is
nominally seven feet high and twenty-four inches wide. The populated racks must be
installed inside a weatherproof enclosure near the base of a communications tower. If an
OE-100 Outdoor Enclosure is used, the OpenSky equipment is mounted to the mounting
rails provided within the enclosure (Refer to OE-100 Outdoor Enclosure Maintenance
Manual MM102226V1). The Base Station installation procedure addresses the following:
• Installing the equipment racks after they have been transported to the
communications site and moved into the equipment shelter
• Making inter-rack cabling connections
18
MM102225V1, Rev. B
• Connecting the power supply and site subsystems external to the OpenSky equipment
racks
3.3 SECURING EQUIPMENT RACKS TO THE FLOOR
Move the racks into the designated positions and prepare to bolt them to the floor. In rare
cases, bolting to the floor may be prohibited. In those cases, bolt the racks to each other
for stability.
Procedure
:
1. Using a template, mark bolt locations for each equipment rack to be installed.
2. Drill pilot holes (Drill any required pilot holes to the specified depth of 1-1/2").
3. Drill 1/2" diameter holes for wood and concrete floors.
4. Move racks into position over bolt marks. In general, racks are placed side-by-side in
numerical order, with Rack #1 leftmost when viewed from the front.
5. If necessary, level the racks. The racks should be, at a minimum, approximately
level. If necessary, shim the racks so they are level by eye (use of an actual level i s
better).
6. Align the front of the racks.
7. Bolt equipment racks to the floor. Follow the procedure below corresponding to the
type of floor in the shelter. In general, equipment installers will encounter four types
of floor: concrete, concrete covered with linoleum, wood, and raised floors. The
procedure for each type is as follows:
• For concrete floors, use 1/2" drop-in expanding anchors with an insulating nylon
washer under the fastener head to anchor the racks (see Figure 3-1: Bolt
Assembly Hardware and Figure 3-2: Nylon Washer and Bolt Assembly).
1. Drill pilot holes for the anchors using the appropriate-sized carbide-tipped
drill bit. The pilot holes must not exceed 1-1/2" in depth.
2. Insert the anchors into the pilot holes.
2
3. Place insulating phenolic strip(s)
and under the cabinets/racks before bolting
them in place.
4. Place the cabinet/rack over the holes.
5. Assembly the bolts, fender washers and nylon washers.
6. Insert the bolt and washer assemblies into the pilot holes.
7. Tighten the bolts until firmly set (see Figure 3-3: Concrete Floor Mounting
and Figure 3-4: Bolt Assembly Used to Bolt Rack to Concrete Floor).
Be careful not to over tighten bolts to avoid breaking the phenolic bushings.
CAUTION
2
Phenolic strips are only required if the floor is pure concrete. Concrete floors covered with linoleum do not require phenolic
strips.
19
MM102225V1, Rev. B
LEAD ANCHOR
Top View
BOLT
NYLON WASHER
FENDER WASHER
Figure 3-1: Bolt Assembly Hardware
Side View
Bottom View
Bolt Assembly
NYLON WASHER
EXPANDABLE
CONCRETE ANCHOR
Figure 3-2: Nylon Washer and Bolt Assembly
BOLT
BOTTOM OF CABINET
FENDER WASHER
CONCRETE FLOORING
PHENOLIC STRIP
Figure 3-3: Concrete Floor Mounting
20
MM102225V1, Rev. B
BOLT
ASSEMBLIES
Figure 3-4: Bolt Assembly Used to Bolt Rack to Concrete Floor
• For wood floors, use a lag bolt with an insulating nylon washer under the head to
bolt the racks to the floor. Insulating phenolic strips under the racks are not
required. No pilot hole is needed on wood floors.
• For raised floors, the rack attach ment procedure is quite different. The first and
last racks in the row are bolted to the sub-floor as shown below. The remaining
racks are bolted to the end racks, to each other, or both. Insulating phenolic strips
must be placed under each rack (see Figure 3-5: Raised Floor Rack
Attachment).
21
Rack Cutaway
Nylon Washers
Concrete Anchor
Concrete Subfloor
Figure 3-5: Raised Floor Rack Attachment
MM102225V1, Rev. B
3.4 CABLING EQUIPMENT RACK COMPONENTS
Once the racks have been installed, interrack cable connections must be made, and racks
must be connected to a power source and grounded, as well as connected to external
communications sub-systems such as antennas. Follow this procedure in accordance with
M/A-COM, Inc. Quality Standards Manual GQM0221. Possible rack-ups of equipment
cabinets are shown in Figures 6 and 7.
44 RU---
40 RU---
35 RU---
30 RU---
25 RU---
20 RU---
15 RU---
10 RU---
5 RU---
0 RU---
1 RU
3 RU
2 RU
2 RU
3 RU
1 RU
3 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
2 RU
1 RU
RACK LABEL
RACK BREAKER PANEL
BLANK
ION OR DPS ALARM MODULE
ISM RADIO INTERFACE
BLANK2 RU
SITE ACCESS SERVER2 RU
BLANK (required)
BLANK
RX SPLITTER
BACKUP DCX
DCX #1
BLANK OR DCX #2
BLANK OR DCX #3
BLANK OR DCX #4
BLANK OR DCX #5
BLANK OR DCX #6
BLANK OR DCX #7
BLANK OR DCX #8
BLANK OR DCX #9
BLANK OR DCX#10
BLANK
44 RU available
Rack total height is 83" of
which 77" is usable.
Rack Depth is 24"
Rack Width is 22"
Notes:
Need cable lacing
guides in rack
Need grounding for all
rack equipment
DCX #7 through #10
are currently not
required
A Digital Controller/
XTransceiver (DCX)
contains two cards: a
Base Station
Controller (BSC) and
a Base Station
Transceiver (BSX)
Figure 3-6: Possible Rack-Up of Tower Site Rack #1
For One To Ten Base Stations Plus Backup And ISM Radio Options
22
MM102225V1, Rev. B
44 RU---
40 RU---
35 RU---
30 RU---
25 RU---
20 RU---
15 RU---
10 RU---
1 RU
3 RU
2 RU
3 RU
10 RU
4 RU
4 RU
4 RU
4 RU
RACK LABEL
RACK BREAKER PANEL
BLANK
RX AMPLIFIER2 RU
TT AMP CONTROLLER
TX COMBINER
6 5 4 3 2 1
HPA #1
HPA #2
HPA #3
HPA #4
44 RU available
Rack total height is 83" of
which 77" is usable.
Rack Depth is 24"
Rack Width is 22"
Notes:
Need cable lacing
guides in rack
Need grounding for all
rack equipment
5 RU---
0 RU---
3 RU
4 RU
DUPLEXER AND POWER SENSOR
BACKUP HPA
Figure 3-7: Possible Rack-Up of Tower Site Rack #2
With Separate TX/RX Antenna Option For Base Stations #1 To #4 Of Six Maximum Plus Backup Option
Use the right tool for the job!
Eight Inch-Pound Torque Wrench or Newton/Meter Wrench for SMA-Type
connectors
CAUTION
Soft Jaw Connector Pliers for N-Type connectors
3.4.1 Interrack Cable Connections
1. On the back of each High-Power Amplifi er (HPA) is an RF cable attached to the RF
Input port. Attach each of these cables to the RF Output port on the companion
Digital Controller/(X)Transceiver
3
(DCX) (see Figure 3-8: HPA RF Input
Connection and Figure 3-9: DCX RF Output Connection).
3
Digital Controller/(X) Transceiver (DCX) contains two cards: a Base Station Controller (BSC) and as Base Station
(X)Transceiver (BSX).
23
MM102225V1, Rev. B
Figure 3-8: HPA RF Input Connection
Figure 3-9: DCX RF Output Connection
2. Racks that hold the HPA's have two large unconnected wire bundles covered with a
split loom. Pull these bundles to the adjacent rack, which contains the DCXs and the
Base Station Alarm Module
4
(see Figure 3-10: Wire Bundles with DCX and Base
Station Alarm Wiring).
4
The Base Station Alarm Module can be an ION Alarm manufactured by Sentinel or a NetGuardian Alarm, model D-PK-
NETGD-12053 manufactured by DPS Telecom.
24
ION Alarm
Bundle with
Lock-n-Mate
Connectors
MM102225V1, Rev. B
Figure 3-10: Wire Bundles with DCX and Base Station Alarm Wiring
(This figure is for the ION Alarm only. The DPS Alarm uses punchblock connections.)
3. Included in the wire bundle above, is a wiring harness with the female half of a
MATE-N-LOK® connector. Locate the male half (it connects to the harness that runs
to the Contact Closure Inputs plug on the Base Station Alarm Module) and connect
the MATE-N-LOK connectors (see Figure 3-11: DPS Alarm Punchblock
Connector).
25
Figure 3-11: DPS Alarm Punchblock Connector
MM102225V1, Rev. B
4. The remaining cables in this wiring bundle are data cables that attach to each DCX.
Dress these cables into the cable tray. Each data cable terminates in a pigtail with an
RS-485 connector on both the main cable and its pigtail. Following the labels on each
data cable, plug the main cable and its pigtail into the two RS-485 ports on each
DCX. The main cable plugs into the bottom (RF) half of the DCX (BSX) and the
pigtail plugs into the top (digital) half of the DCX (BSC) (see Figure 3-12: RS-485
Main Cable and Pigtail Plug Connected to DCX).
Pigtail Plug
Main Cable
Figure 3-12: RS-485 Main Cable and Pigtail Plug Connected to DCX
5. Locate the cable attached to one of the host ports on the Alarm Module that has an
RS-232 connector on the free end. Plug this connector into the RS-232 port on the
Bird Electronic Corporation Power Monitor (VSWR) in the adjacent rack (see Figure
3-13: RS-232 Connector from Alarm Module to Bird Power Monitor (VSWR).
Figure 3-13: RS-232 Connector from Alarm Module to Bird Power Monitor (VSWR)
6. For Sites with a dual antenna, locate the Tower-Top Amplifier Control Box. In the
adjacent rack, locate the cable attached to the Input port of the TX/RX multi-coupler.
Connect the free end of that cable to the Tower-Top Amplifier Controller's Receiver
26
MM102225V1, Rev. B
Multi-Coupler port (see Figure 3-14: Cable Connecting the Tower-Top Amplifier
Control Box to the Input port of the Multi-Coupler).
Figure 3-14: Cable Connecting the Tower-Top Amplifier Control Box to the Input port of the Multi-
Coupler
3.4.2
Connecting Power Source and External Equipment
Once rack-to-rack cables have been connected, the racked equipment in the enclosure
must be connected to external equipment and to the power source. For a layout of the
cable tray refer to Figure 3-15: Cable Tray Layout.
AC Conduit
*
* May not be present for -48VDC Sites.
Figure 3-15: Cable Tray Layout
RF Cables
Control / Data Cables
Ground Wires
DC Power Cables
27
MM102225V1, Rev. B
3.4.3 Connect Cabling for the Power Source
1. Run two DC power cables (#6 insulated red connected to -48 volts) and ground (DC
Return
return insulated black) from the site's -48VDC Distribution Panel (see Figure 3-17: 48 Volt Breaker Distribution Panel of the DC Power Supply - Red Wire
5
and Figure
3-18: DC Return Distribution Bar - Black Wires) to each rack, attaching the cables
to the racks.
Red
–48VDC
Black
Figure 3-16: DC Power Connection Found in Each Rack - Black (DC Return) and Red (-48 Volt) wires
Figure 3-17: -48 Volt Breaker Distribution Panel of the DC Power Supply - Red Wire
5
The DC supply may not be the make shown here.
28
MM102225V1, Rev. B
Figure 3-18: DC Return Distribution Bar - Black Wires
2. If not already labeled, label OpenSky circuits in the breaker panel to identify each
rack (see Figure 3-19: Properly Labeled OpenSky Circuit Breakers in the
Distribution Panel - OpenSky Rack 1, OpenSky Rack 2, etc.)
Figure 3-19: Properly Labeled OpenSky Circuit Breakers in the Distribution Panel
3. Route cables as specified by the installation procedure, using existing cable trays and
overhead ladders, routing cables under raised floors, and so on.
4. Route DC power cables together and maintain at least two inches (2") spacing
between the DC power cable bundle and other types of cables.
29
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