The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of
this document or any portion of this document, in any form by any means, without the prior written consent of ZTE
CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality
obligations.
All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE
CORPORATION or of their respective owners.
This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditions are
disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or noninfringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on
the information contained herein.
ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the
subject matter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its
licensee, the user of this document shall not acquire any license to the subject matter herein.
The contents of this document and all policies of ZTE CORPORATION, including without limitation policies related to support
or training are subject to change without notice.
ZTE CORPORATION
Values Your Comments & Suggestions!
Your opinion is of great value and will help us improve the quality of our
product documentation and offer better services to our customers.
Please fax to: (86) 755-26772236; or mail to Publications R&D
Department, ZTE CORPORATION, ZTE Plaza, A Wing, Keji Road South,
Hi-Tech Industrial Park, Shenzhen, P. R. China 518057.
Thank you for your cooperation!
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ZXC10 CBTS O1 CDMA2000 Outdoor Compact BTS - O1
Presentation:
(Introductions, Procedures, Illustrations, Completeness, Level of Detail, Organization,
Appearance)
Text that you type, program code, files and directory names,
and function names
Mandatory parameters
Note: Provides additional information about a certain topic.
Checkpoint: Indicates that a particular step needs to be checked
before proceeding further.
Tip: Indicates a suggestion or hint to make things easier or
more productive for the reader.
Confidential and Proprietary Information of ZTE CORPORATION xi
ZXC10 CBTS O1 Hardware Installation Manual
Mouse Operation Conventions
T ABLE 2 -M OUSE OPERATION CONVENTIONS
Typeface Meaning
Click Refers to clicking the primary mouse button (usually the left
Double-click Refers to quickly clicking the primary mouse button (usually the
Right-click Refers to clicking the secondary mouse button (usually the right
Drag Refers to pressing and holding a mouse button and moving the
mouse button) once.
left mouse button) twice.
mouse button) once.
mouse.
xii Confidential and Proprietary Information of ZTE CORPORATION
About this Manual
Safety Signs
T ABLE 3 -S AFETY SIGNS
Safety Signs Meaning
Danger: Indicates an imminently hazardous situation, which if
not avoided, will result in death or serious injury. This signal
word should be limited to only extreme situations.
Warning: Indicates a potentially hazardous situation, which if
not avoided, could result in death or serious injury.
Caution: Indicates a potentially hazardous situation, which if not
avoided, could result in minor or moderate injury. It may also
be used to alert against unsafe practices.
Note: Indicates a potentially hazardous situation, which if not
avoided, could result in injuries, equipment damage or
interruption of services.
Erosion: Beware of erosion.
Electric shock: There is a risk of electric shock.
Electrostatic: The device may be sensitive to static electricity.
Microwave: Beware of strong electromagnetic field.
Laser: Beware of strong laser beam.
No flammables: No flammables can be stored.
No touching: Do not touch.
No smoking: Smoking is forbidden.
Confidential and Proprietary Information of ZTE CORPORATION xiii
ZXC10 CBTS O1 Hardware Installation Manual
How to Get in Touch
The following section provides information on how to obtain support for
the documentation and the software.
Customer Support
If you have problems, questions, comments, or suggestions regarding
your product, contact us by e-mail at support@zte.com.cn. You can also
call our customer support center at (86) 755 26771900 and (86) 8009830-9830.
Documentation Support
ZTE welcomes your comments and suggestions on the quality and
usefulness of this document. For further questions, comments, or
suggestions on the documentation, you can contact us by e-mail at
doc@zte.com.cn; or you can fax your comments and suggestions to (86)
755 26772236. You can also explore our website at
http://support.zte.com.cn, which contains various interesting subjects like
documentation, knowledge base, forum and service request.
FCC STATEMENT
Before using this CDMA ZXC10 CBTS I28A and CBTS I219, read this
important RF energy awareness and control information and operational
instructions to ensure compliance with the FCC RF exposure guidelines.
NOTICE: Working with the equipment while in operation, may expose the
technician to RF electromagnetic fields that exceed FCC rules for human
exposure. Visit the FCC website at www.fcc.gov/oet/rfsafety
about the effects of exposure to RF electromagnetic fields.
Changes or modifications to this unit not expressly approved by the party
responsible for compliance will void the user’s authority to operate the
equipment. Any change to the equipment will void FCC grant.
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to the FCC Rules. This equipment
generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation.
to learn more
xiv Confidential and Proprietary Information of ZTE CORPORATION
Chapter 1
Installation Preparation
This chapter describes:
Hardware installation flow
CBTS O1 installation precautions
Environment inspections
Installation location specifications
Temperature and humidity requirements
Power supply requirements
Power consumption requirements
Electromagnetic radiation protection
Antenna feeder system requirements
Other requirements
Tool and meter list for installation
Technical documentation preparation
Project commissioning documents
Acceptance reports
Reference documents
Confidential and Proprietary Information of ZTE CORPORATION 15
16 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 1 - Installation Preparation
CBTS O1 Installation Precautions
Take following precautions during CBTS O1 installation.
Avoid hot swap during board installation.
Never install antenna feeder system in case of lightning.
Check that lightening arresters are in proper contact. Replace damaged
arresters immediately.
Wear antistatic wrist strap during installation.
Only qualified person should do installation.
Follow specific manual provided by ZTE for installation.
Environment Inspections
Before installation, the operator should finalize and prepare installation
location, arrange power supply and grounding cables, and provide
necessary facilities for installation.
Installation Location Specifications
Installation location must fulfill the engineering requirements. Table 4 lists
equipment room basic requirements.
T ABLE 4 -I NSTALLATION LOCATION S PECIFICATIONS
Item Requirements
Grounding
Install lightning arrester and proper grounding equipment to avoid any
damage due to short circuits
Temperature and Humidity Range
Table 5 shows CBTS O1 temperature and humidity range.
T ABLE 5 -T EMPERATURE AND HUMIDITY R ANGE
Item Working range Recommended range
Temperature
Humidity 5% RH ~ 98% RH 40% RH ~ 60% RH
-40 °C ~ +55 °C +15 °C ~ +35 °C
Confidential and Proprietary Information of ZTE CORPORATION 17
ZXC10 CBTS O1 Hardware Installation Manual
Power Supply Requirements
Table 6 and Table 7 illustrate ZXC10 CBTS O1 power supply and power
consumption requirements respectively.
T ABLE 6 -P OWER S UPPLY I NDICES
Indices Name Index Requirements
Power system
range
DC power
supply
AC power
supply
Note:
DC power is supplied with battery group (UPS). There is no direct DC supply.
Power noise level
Power protection
Power system
range
Power noise level
Power protection
Frequency range
-48 V power supply in range of -43.2 V ~ -56.5 V
Satisfies Ministry of Post and Telecom technical
specifications
Includes Over-voltage/Over-current protection and
indication
220 V power supply in range of 130 V ~ 300 V
110 V power supply in range of 90 V ~ 140 V
Not included now, but under consider for future
Satisfies Ministry of Post and Telecom technical
specifications
Includes Over-voltage/Over-current protection and
indication
Supports frequency range from 45 Hz ~ 65 Hz.
Recommended frequency is 50 Hz.
Power Consumption Requirements
T ABLE 7 -P OWER C ONSUMPTION R EQUIREMENTS
System Description Power consumption (W) Remarks
Main equipment with full
configuration
Heater 2400
Total 4400
18 Confidential and Proprietary Information of ZTE CORPORATION
Note:
To configure a storage battery group, calculate corresponding power
consumption according to storage battery group capability. It is recommended to
configure 200 AH or 400 AH storage battery group. Former can supply power
continuously for 4 hours, and latter can supply 8 hours. During charging, 400 AH
storage battery group power consumption is about 2000W.
protection, and direction of antenna installation pole of iron tower BS
Other Requirements
According to contract, check whether following requirements are fulfilled:
Cables for external power supply and cabinet are available
E1 cable connecting CBTS O1 and BSC is present
Fire extinguisher is available
CBTS O1 cabinet mechanical intensity meets the requirement of ETSI
300 019-2-4 class 4M3
Atmospheric pressure is in the range of 70 kPa ~ 106 kPa
Wind resistance should not be less than 200 km/h
Cabinet temperature variation must be less than 1° C/min
Cabinet must be resistant to all atmospheric conditions like: rain, dust,
moisture. It must comply with IP protection level of IP55
CBTS O1 does not have internal transmission equipments such as SDH
equipments and microwave equipments which must be supplied
according requirements
Confidential and Proprietary Information of ZTE CORPORATION 19
ZXC10 CBTS O1 Hardware Installation Manual
Tool and Meter List for Installation
Table 9 shows tools and meters list required during installation.
T ABLE 9 -T OOL AND METER L IST
Category Name
Special-purpose tools
Concrete drilling tools
One feeder connector knife
One wire stripper for 75 Ω coaxial cables
One crimping pliers for 75 Ω coaxial cables
One multi-functional crimping pliers
One multimeter
One SiteMaster VSWR tester
Earth resistance tester
One electric percussion drill
Auxiliary and sample bits
One vacuum cleaner
Power socket (two-phase and three-phase socket, with current
capacity greater than 15 A)
General-purpose tools
Measurement tools
Protection tools
Cross screwdrivers (4”, 6” and 8” each)
Flathead screwdrivers (4”, 6” and 8” each)
Adjustable wrenches (6’, 8’, 10’ and 12’)
Dual-purpose spanners (17” and 19” each)
One set of socket wrench
11.02 lb (5 kg) nail hammer
One 300 W iron
One 40 W iron
Solder wires
One 50 m tape measure
One 5 m steel tape
One 400 mm level bar
One angle meter
One compass
Plumb
Antistatic wrist strap
Safety helmet
Pair of gloves
20 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 1 - Installation Preparation
Category Name
One hacksaw (with several saw blades)
One pair of sharp-nose pliers (8”)
One pair of diagonal pliers (8”)
One pair of slip joint pliers (8")
One pair of vices (8”)
One needle file set (medium sized)
Small tools
Tweezers
One paintbrush
One pair of scissors
One hot blower
One solder sucker
One pair of hydraulic pliers
Crowbar
Pulley block
Auxiliary tools
Rope
Ladder
Forklift
Spectrum analyzer
SITE MASTER BS tester
Meter
Qualcomm test MS
Compass
Multimeter
Field strength tester
Note:
Do not use meters unless they are strictly calibrated and proven qualified.
Confidential and Proprietary Information of ZTE CORPORATION 21
ZXC10 CBTS O1 Hardware Installation Manual
Technical Documentation
Preparation
Project Commissioning Documents
Prepare following technical documents for equipment commissioning
Project Survey Report
Engineering staff should prepare a Project Survey Report during onsite
survey.
Engineering design documents
Engineering design documents should be completed by designing unit
that the subscriber entrusts. Its replication copy should be provided to
the equipment provider before equipment delivery.
Environment Acceptance Report
Environment Acceptance Report is used for first environment
acceptance in BSC survey, showing whether CBTS O1 installation
requirements are satisfied. If installation environment is not
appropriate, the customer should improve the conditions and solve the
problems. Conduct second environment inspection before the
engineering starts.
Acceptance Reports
Installation Acceptance Report and Test Acceptance Report are post
commissioning acceptance documents. The equipment supplier provides
these documents to the customer at delivery time. The installation staff
should complete these documents in presence of the customer after CBTS
O1 system commissioning.
Reference Documents
Use following manuals for reference during installation:
1. Arrange appropriate tools such as nail hammer, pliers, straight
screwdriver and crowbar.
2. Insert a flat-tip screwdriver into slit between case and front cover
board to make it loose. Then insert a crowbar to unclench cover board.
3. Erect wooden case. Make sure that supports are at the bottom and pull
cabinet out from case gently.
4. Remove packing adhesive cabinet tape.
Note:
Handle CBTS O1 cabinet with care during movement to avoid damage.
Confidential and Proprietary Information of ZTE CORPORATION 25
ZXC10 CBTS O1 Hardware Installation Manual
Checking Cabinet
Check cabinet according to packing list and ensure following:
There are no dents, bulges, scratches, peels, blithers, blisters or
smudges on outer surface of cabinets.
Busbars, fans and installation positions on cabinets are free from
damage or distortion.
Cabinet slots for plug-in frames are intact. Guide rails of plug-in slots
are not damaged.
Installation slot labels are intact.
Fastening screws are not loosen, disconnected, or mistakenly placed.
Accessories and fittings needed for cabinet installation are complete.
Unpacking Carton
Carton Structure
Figure 3 shows carton box structure.
F IGURE 3 -CARTO N B OX
ZXC10 CBTS O1
Unpacking Procedure
Take following steps to unpack a carton:
1. Use diagonal pliers to cut packing straps.
2. Use a paper knife to cut adhesive tape along slits on carton covers.
26 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 2 - Unpacking and Handover
Unpacking Precautions
Take following precautions to unpack carton:
Take anti-static measures to avoid equipment damage.
To avoid damage to goods, do not cut too deep.
Wait for 30 minutes before unpacking equipment, when equipment is
moved from a colder and drier place to a hotter and damper place.
Properly recycle desiccants.
Checking Boards
Check quality, quantity, type, cracks and model of all boards inside carton
against packing list provided by ZTE office.
Acceptance and Handover
Upon completion of unpacking, representative of customer and project
supervisor should sign Unpacking for Inspection Report to acknowledge
acceptance. Each party should have a copy of Unpacking for Inspection
Report.
Confidential and Proprietary Information of ZTE CORPORATION 27
ZXC10 CBTS O1 Hardware Installation Manual
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28 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3
Cabinet Installation
This chapter describes:
Cabinet structure
Cabinet installation precautions
Ground installation mode
Ground installation mode flow
Confidential and Proprietary Information of ZTE CORPORATION 29
ZXC10 CBTS O1 Hardware Installation Manual
Cabinet Structure
F IGURE 4 -CABINET OUTER VIEW
Figure 4 shows CBTS O1 cabinet outer view.
Cabinet dimensions: 900 mm (W) × 780 mm (D) × 1800 mm (H)
Cabinet dimensions: 35.43 inch (W) × 30.70 inch (D) × 70.86 inch (H)
30 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 - Cabinet Installation
Figure 5 shows CBTS O1 cabinet front view.
F IGURE 5 -CABIN ET F RONT VIEW
1. Upper shelf 2. Fan group 1
3. Lower shelf 4. Fan group 2
5. Transmission shelf 6. Power shelf
7. Test port and O_PH 8. Flashlight
9. Battery group
Table 10 illustrates CBTS O1 weights with different configurations.
T ABLE 10-CAB INET W EIGHT
System Description Weight (lb)Weight (kg)
Cabinet (including a heat
exchanger, rack and base)
Imbedded power module
4C1S modules
562.17 255
55.11 25
70.54 32
4C3S modules
134.48 61
Confidential and Proprietary Information of ZTE CORPORATION 31
ZXC10 CBTS O1 Hardware Installation Manual
Cabinet Installation Precautions
Install cabinet according to engineering design specifications.
Vertical error should be less than 0.118 inch (0.3 m).
Screw all nuts and bolts tightly.
Handle equipment carefully.
Ground Installation Mode
Ground installation modes involve CBTS O1 installation under a tower plat
form or on a roof. During installation under a tower plat form build a
safety wall around CBTS O1 system.
32 Confidential and Proprietary Information of ZTE CORPORATION
Confidential and Proprietary Information of ZTE CORPORATION 33
ZXC10 CBTS O1 Hardware Installation Manual
Take following steps for CBTS O1 ground installation:
1. Building a concrete platform
Build a 47.24 inch x 59.05 inch x 3.39 inch (1200 mm × 1500 mm ×
100 mm) concrete platform. Figure 7 shows expansion bolt holes
dimensions 29.52 inch x 18.89 inch (750 mm × 480 mm) to install two
channel steel bars.
F IGURE 7 -S INGLE C ABI NET C ONCRETE P LATFORM (UNITS MM)
F IGURE 8 -CHANNEL S TEEL C ROSS SECTION (UNITS MM)
60
R4.8
R
9
.
5
8
140
9.5
Tilt 1:10
26
34 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 - Cabinet Installation
2. Determine positions of four holes for installing channel steel according
to engineering design drawing. See Figure 9 for single.
F IGURE 9 -DRAWING LINES FOR S INGLE C ABINET T OP VIEW (UNITS MM)
120
0
0051
750
084
After drawing lines, measure lines once again to verify them.
3. Drilling holes
Drill φ14 holes, each 3.54 inch (90 mm) depth at marked positions for
ground expansion bolt holes. Keep drill bit vertical while drilling holes
with a percussion drill. Hold driller firmly and press downwards. Use
vacuum cleaner to clean dust while drilling.
4. Expansion Bolt Installation
Put expansion bolt with tube in drilled hole and hammer it. Fix bolt
with nut using spanner and remove nut for cabinet installation. Torque
should not exceed 45 N-m. Figure 10 shows this process.
F IGURE 10-EXPANSION BOLT I NSTALLATION
Confidential and Proprietary Information of ZTE CORPORATION 35
ZXC10 CBTS O1 Hardware Installation Manual
5. Fixing channel steel
Figure 11 shows to fix channel steel on concrete platform using
expansion bolts.
F IGURE 11-FIXING C HANNEL S TEEL
Figure 12 shows complete installation of channel steel.
F IGURE 12-CHANNEL STEEL I NSTALLATION
36 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 - Cabinet Installation
After channel steel installation, check its level with horizontal ruler.
Horizontal error should not more than 0.039 inch (1 mm). Figure 13
shows to minimize horizontal error according to ground level using
washers.
F IGURE 13-MINIMIZING E RROR WITH W ASH ER
1. Adjusting Washer
6. Fixing cabinet
Move cabinet to installation position and fix it onto channel steel with 4
bolts. Figure 14 shows fixing cabinet.
F IGURE 14-FIXING C ABINET
1. Screw 2. Flat washer
3. Spring washer 4. Nut
Confidential and Proprietary Information of ZTE CORPORATION 37
ZXC10 CBTS O1 Hardware Installation Manual
Figure 15 shows view of single cabinet after installation.
F IGURE 15-SINGLE C ABINET I NSTALLATION
7. Insulation test
Use multimeter to measure resistance between expansion bolts and
cabinet. Open circuit indicates proper insulation. If result is otherwise,
check insulation again and repeat the test.
38 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 - Cabinet Installation
Cabinet Accessories Installation
This section describes cabinet accessories installation. Following are
cabinet accessories:
Heat exchanger
Shutter
Power subrack
Windshield cover board
Heat Exchanger
Heat exchanger is already installed and is debugged before delivery.
Following section describes heat exchanger dismantling and installation
during maintenance.
1. Dismante
After opening the front door, power off the heat exchanger and unplug
all the sockets. Remove twenty-six screws at the pressed edge, and
take out heat exchanger by holding the side handle. Figure 16 shows
this process.
F IGURE 16-HEAT E XCHANGER DISMANTLING
1
2
4
3
1. Front door 2. Handle
3. Heat exchanger 4. Screw
Confidential and Proprietary Information of ZTE CORPORATION 39
ZXC10 CBTS O1 Hardware Installation Manual
2. Installation
Fix heat exchanger on front door with the removed twenty-six screws;
make sure to fasten the screws.
Shutter
Follow procedure below to remove and install shutter during maintenance.
1. Remove
After opening front door, remove the six screws inside the front door.
Figure 17 shows this process. Take out shutter directly through front
door. Heat exchanger is removal is optional.
F IGURE 17-SHUTTER D ISMANTLING
321
1. Shutter 2. Front door
3. Screw
2. Installation
Fix shutter on outside front door with the removed six screws and
make sure to fasten the screws.
40 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 - Cabinet Installation
Power Subrack
Power subrack is already installed and is debugged before delivery.
Following section describes method for rectifier module installation in
subrack during maintenance.
Install power subrack with a maximum of four rectifier modules, in 3+1
backup mode and accept hot plugging.
1. Dismantle
i. Loosen both side screws on module handle and put handle into
OPEN state.
ii. Hold handle and take out module, Figure 18 shows this process.
F IGURE 18-TAKING OUT R ECTIFIER M ODULE
1. Screw 2. Handle
2. Installation
Loosen both side screws on module handle and put handle into OPEN
state, Figure 19 shows this process.
F IGURE 19-RECTIFIER M ODULE –HANDLE IN OPENSTATE
1. Handle 2. Screw
Confidential and Proprietary Information of ZTE CORPORATION 41
ZXC10 CBTS O1 Hardware Installation Manual
i. Insert module into the cabinet along the guide rail.
ii. After module is inserted, press handle into right position (so that it
touches backplane properly), and fasten screws on both sides of
handle.
Windshield Cover Board
Install windshield cover board after internal cable installation. Put cover
board into cabinet according to arrow direction, and fix it onto right
position with 5 screws, Figure 20 shows this process.
F IGURE 20-WINDSHIELD C OVER B OARD I NSTALLATION
1
2
3
1. Screw 2. Windshield cover board
3. Cabinet
42 Confidential and Proprietary Information of ZTE CORPORATION
Confidential and Proprietary Information of ZTE CORPORATION 43
ZXC10 CBTS O1 Hardware Installation Manual
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44 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 4
Cable Installation
This chapter describes cable installation:
Power and grounding cables
Power cable installation
External cable installation
Cable installation requirements
Confidential and Proprietary Information of ZTE CORPORATION 45
ZXC10 CBTS O1 Hardware Installation Manual
Power and Grounding Cables
ZXC10 CBTS O1 power and grounding cables are located at cabinet bottom.
Power cable
Power cables have cross section area of 16 mm
AC. Live wire is brown and neutral wire is black.
PE protection ground cable
Ground cable has cross section area of 35 mm² and is yellowish green.
Power Cable Installation
CBTS O1 internal cables are already installed in factory, install external AC
power and ground cables on site according to specific engineering design
drawing Connect main power cable from cabinet bottom to AC_IN interface
according to marked polarities. Refer to Cabinet External Cable Installation
section for details. Table 11 describes power cable interface signals.
2
and are fed with 220V
T ABLE 11-AC220VINTERFACE
Pin
1 L
2 N
3 PE AC protection ground PE
Signal
Definition
Signal Description End-A Entity
AC live wire L, with maximum
current of 60A
AC neutral wire N, with
maximum current of 60A
AC power distribution
device
End-B
Entity
ACCU unit
Caution:
Ensure that power and grounding cables are according to engineering
specifications and standards.
Take all measures to guarantee staff and equipment safety.
46 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 4 - Cable Installation
Connect power and grounding cables according to engineering design
drawing. Figure 22 shows power and grounding cable connections.
F IGURE 22-POWER AND G ROUNDING CABLE C ONNECTIONS
1. Grounding cable 2. AC power cable
3. AC power filter 4. Lightning arrester
5. AC switch
Confidential and Proprietary Information of ZTE CORPORATION 47
ZXC10 CBTS O1 Hardware Installation Manual
External Cable Installation
Connect all external cables through interface at cabinet bottom. Following
are external cable types:
AC_IN power cable
Battery power cable
E1/T1 cable
Optical cable and microwave intermediate frequency cable
PE ground cable
RF cable
GPS Antenna feeder RF cable
Figure 23 shows CBTS O1 cabinet bottom interface top view. Ensure that
all external connections are waterproof and corrosion resistive.
F IGURE 23-CAB INET B OTTOM I NTERFACE TOP V IEW
1. GPS antenna 2. AC power cable
3. PE protection ground 4. Battery positive terminal
5. Battery negative terminal 6. E1/ T1
7. Main feeder cable 8. Ventilation hole
9. Optical fiber
48 Confidential and Proprietary Information of ZTE CORPORATION
F IGURE 24-CAB INET B OTTOM I NTERFACE BOTTOM VIEW
1. GPS antenna 2. AC power cable
3. Protection ground 4. Battery positive terminal
5. Battery negative terminal 6. E1/ T1
7. Main feeder cable 8. Ventilation hole
9. Optical fiber
For GPS cable installation refer to corresponding chapter.
Confidential and Proprietary Information of ZTE CORPORATION 49
ZXC10 CBTS O1 Hardware Installation Manual
Table 12 shows cable connection relationship
T ABLE 12-CAB LE C ONNECTION RELATIONSHIP
Interface
S.N.
Name
HYCOM1 ~
1
HYCOM 6
2 AC_IN
3 PE Ground pole
Fiber 1 ~
4
4
5 BAT+
6 BAT-
7 GPS
8 ABIS
Socket
Type
7/16-hole
socket
Hummel
connector
Cable
traverser
Hummel
connector
Hummel
connector
N-F
connector
Cable
traverser
External cable
name
Antenna feeder
RF cable
AC_IN power
cable
PE cabinet
protection
ground cable
Optical cable and
microwave trunk
+ Battery rack
power cable
- Battery rack
power cable
GPS cable 1 GCM board GPS antenna
Abis interface E1/
T1 cable
QuantityEnd A End B
6 RFE Antenna
AC power
1 ACCU unit
Cabinet PE
1
2
1 Battery rack
1
2
connecting
terminal
Transmissi
on Unit
DCCU unit
Master
cabinet
distribution
device
Protection
grounding
busbar
Remote
transmission
Battery rack
External
transmission
device or BSC
Antenna Feeder RF Cable
Um interface implements radio signal transmission by employing antenna.
There are 6 antenna feeder interfaces at CBTS O1 cabinet bottom:
HYCOM1 ~ HYCOM6. Connect cabinet external interface to antenna feeder
jumper and internal interface to ANT port of corresponding RFE board.
Antenna feeder interfaces transmits RF carrier signals between BTS and
MS. Use 7/16 female socket connector. Table 13 illustrates antenna feeder
interfaces.
T ABLE 13-ANTENNA FEEDER I NTERFACES
Pin
Internal
conductor
Shielding layer GND -
Signal
Definition
HYCOM TX-RF
HYCOM RX-RF
Signal Description End-A Entity End-B Entity
RFE Antenna
50 Confidential and Proprietary Information of ZTE CORPORATION
Chapter 4 - Cable Installation
Battery Cables
CBTS O1 cabinet has small battery setup due to volume restrictions. Use
external battery for uninterrupted power supply in case of main AC failure
for longer time. There are two battery terminals marked as BAT+ and
BAT- on cabinet for external connection.
Optical Cable & Microwave Intermediate
Frequency Cable
There are four entrance points for optical fiber cable at cabinet bottom
marked as FIBER 1, FIBER 2, FIBER 3 and FIBER 4.
Fiber splice tray provides 2 pairs of FC/PC interfaces (flange) and meets
requirements for fiber fusion and coiling. Use it to connect fiber end inside
the cabinet and optical cable outside the cabinet. Fiber splice tray is
installed on cabinet backplane left side. Figure 25 shows fiber splice tray
F IGURE 25-FIBER S PLICE T RAY
1
1. Flange installation jack
Route the external optical cables into cabinet from cabling hole at cabinet
bottom. Splice internal fiber cable and FC connector with fiber splicer to
connect fiber to flange. Route the fiber tail from cabinet to corresponding
ZXSM T150 optical interface for connections.
Confidential and Proprietary Information of ZTE CORPORATION 51
ZXC10 CBTS O1 Hardware Installation Manual
E1/T1 Cable
Abis interface adopts E1/T1 interface.
E1/T1 cable connects external transmission device or BSC through Abis
interface. There are two types of E1 cables, 75 ohm and 120 ohm
impedance cables.
Figure 26 shows 75 ohm E1 cable interface with eight ports. Route all
external E1 cables through these ports.
F IGURE 26-E1C ABL E I NTERFACE
R1
T4
R4
R8
T3
T8
R3
R7
T2
T7
R2
R6
T1
T6
R5
T5
Figure 27shows 120 ohm E1 and 100 ohm T1 interface. CBTS O1 cabinet
transmits signals via DB44 connectors. All internal cables are assembled in
factory, only install external cables through specific route. Connect E1/T1
cables to aviation plugs on converter bottom. Figure 27 - 120 OHM E1 and
100 OHM T1 Interface shows interfaces.
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Chapter 4 - Cable Installation
F IGURE 27-120OHME1 AND 100OHMT1INTERFACE
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ZXC10 CBTS O1 Hardware Installation Manual
Cable Installation Requirements
Ensure following requirements during cable installation:
Install power supply and grounding cables separately.
Ensure that distance between cable bundles is at least 7.87 inch (200
mm).
Cut cable ties flat after making cable bundles.
Measure cable lengths before installation. Avoid cable connections or
welding. Figure 28 illustrates this process.
F IGURE 28-POWER S UPPLY AND G ROUNDING CABLES
Ensure less contact resistance between cable and busbar by using plain
and spring washers while fixing the lugs.
Separately install E1 / T1 cables for each single cabinet.
Cable type, quantity, routing, length and installation position must be
according to engineering design drawings.
Before cable installation, ensure that are not damaged and all cables
have delivery logs and quality certificate to ensure product quality.
Use cable tie or wax cable bundle during cable installation. Keep cable
tie maximum length between two cables up to 39.37 inch (1 m).
Ensure cable ties are not too tight.
Use different cable strap according to circumstance, avoid using two or
more cable straps for bundling. Cut cable straps flat after bundling.
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Chapter 4 - Cable Installation
Figure 29 shows difference between correct and incorrect bundle.
F IGURE 29-CAB LE S TRAPS REQUIREMENTS
Keep space between each two cable straps up to 3~4 times longer
than bundle diameter. Figure 30 shows this process.
F IGURE 30-CAB LE S TRAPS
d
3d ~ 4d
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Chapter 5
Main Antenna Feeder System
Installation
This chapter describes main antenna feeder system installation:
Main antenna feeder system installation
Antenna installation preparation
Antenna installation precautions
Main antenna feeder system structure
Antenna types
Super flexible jumper
Main feeder cable
Grounding kit
Lightning arrester
Antenna feeder system connectors
Antenna installation technical parameters
Antenna installation flow chart
Selecting installation position
Moving and hoisting antenna
Uni-directional antenna installation
Omni-directional antenna installation
Main feeder installation
Antenna jumper installation
Feeder cable installation
Lightning arrester installation
Grounding kit installation
Cabinet jumper installation
Testing antenna feeder system
Waterproofing connectors
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Chapter 5 - Main Antenna Feeder System Installation
Main Antenna Feeder System
Installation
Antenna Installation Preparation
Proper antenna installation ensures BSS system reliable operation. Install
antenna according to specific network planning engineering design. Install
antenna in correct direction, elevation, gain and diversity reception modes
including correct tilt and azimuth for each sector. Ensure antennas wind
resistance capability maximum up to 150 km/h.
Before antenna system installation, ensure that installation personnel
working at tower height are qualified. Inspect installation tools and feeder
equipment.
Antenna Installation Precautions
Take necessary measures for personal and equipment safety.
Operator on tower must wear safety belt.
Personnel under tower must wear safety helmets.
Never climb tower with loose clothes and wet/slippery shoes.
While active antenna adjustment, wear radiation-shielding clothing and
turn off high power amplifier to avoid radiation effects.
Main Antenna Feeder System Structure
The main antenna feeder system consists of:
Lightening rod
Antenna jumpers
Antenna pole
Antennas
Grounding kit
Feeder
Feeder cable card
Grounding kit
Lightning rod
Lightning protection ground
CBTS O1 cabinet
Protection grounding busbar
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ZXC10 CBTS O1 Hardware Installation Manual
Figure 31 shows 3-sector antenna feeder system structure.
F IGURE 31-3-SECTOR ANTENNA F EEDER S YSTEM
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Chapter 5 - Main Antenna Feeder System Installation
Antennas Types
There are two main CBTS O1 antenna types:
Uni-directional
Omni-directional
Figure 32 shows directional antenna on right side and omni-directional
antenna on left side.
F IGURE 32-OMNI AND UNI-DIRECTIONAL A NTENNAS
Super Flexible Jumper
Use super-flexible jumper where a small bending radius is required.
Threads on its surface make it highly flexible and able to resist pressure.
Use 1/2" super-flexible jumpers to connect antenna to main feeder cable
and main feeder to cabinet. Figure 33 shows super flexible cable.
F IGURE 33-SUPER F LEXIBLE J UMPER
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ZXC10 CBTS O1 Hardware Installation Manual
Main Feeder Cable
Use 7/8" feeder cable between antenna jumper and cabinet top jumper.
Figure 34 shows main feeder cable, common foam insulating feeder cable
consists of internal and external conductors. Internal conductor is wrapped
with low-loss foam insulator. Feeder cable is covered with a fire and
smoke proof sheath.
F IGURE 34-MAIN F EEDER CABLE
Grounding Kit
Use grounding kit to protect antenna feeder cables and other devices
against lightning. Mount grounding kit according to conditions such as: on
tower top, tower bottom and at transceiver entrance for grounding. Figure
35 shows grounding kit.
F IGURE 35-GROUNDING K IT
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Chapter 5 - Main Antenna Feeder System Installation
Lightning Arrester
Use lightning arrester to protect cable against lightning.
There are two types of common lightning arresters:
λ/4 stub lightning arrester
Figure 36 shows λ/4 stubs, it is a tri-port passive coaxial component.
Length of each third port is one quarter of wavelength and its external
and internal conductors are short-circuited. Its working principle is
similar to that of band pass filter.
F IGURE 36-λ/4STUB L IGHTNING A RRESTER
Graviton lightning arrester
Graviton is a short-circuited protection part encapsulated in ceramics
or glass and filled with low-pressure inert gas. Figure 37 shows two
types of graviton lightning arresters: three electrode on left and dual
electrode graviton on right side.
F IGURE 37-GRAVITON LIGHTNING A RRESTERS
The basic working principle of the graviton is gas discharge. Do not
use graviton in case of excessive currents more 10 kA. Usually, a
graviton has a life of 5 years.
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Antenna Feeder System Connectors
Figure 38 shows all connectors in antenna feeder system. Following
sections describes antenna feeder system connectors.
F IGURE 38-CONNECTORS IN ANTENNA F EEDER S YSTEM
DIN series connectors are medium and large power connectors with
threads. Use DIN series connectors to connect RF coaxial cables in
vibration and adverse environments. Figure 39 shows 1/2" connector
on left and 7/8" connector on right side.
F IGURE 39-DINC ONNECTORS
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Chapter 5 - Main Antenna Feeder System Installation
Figure 40 shows 7/16 type series big threaded water proof coaxial
connectors, male connector on left and female connector on right side.
Use 7/16 type connectors as outdoor connectors for transmitting
medium and high energy.
F IGURE 40-7/16C ONNECTORS
Figure 41 shows SMA series threaded connectors with a characteristic
impedance of 50 Ω. Male connector is on left and female connector on
right side. External conductor inner diameter is 162.59 inch (4130
mm). Use SMA series RF coaxial connectors with semi-rigid and flexible
RF cables to situations requiring high performance microwave.
F IGURE 41-SMAC ONNECTORS
Figure 42 shows BNC connectors, which are bayonet socket RF coaxial
cable connectors manufactured according to MIL-C-39012 and IEC
169-8 specifications. Use BNC connectors as trunk connectors.
F IGURE 42-BNCC ONNECTOR (M)
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Antenna Installation Technical Parameters
Height
It depends upon network planning.
Azimuth
It depends upon network planning.
Tilt
It depends upon network planning and ranges from 0° ~ 10°.
Antenna direction
It depends upon antenna azimuth. Two antennas in same sector should
point to same direction.
Spacing between diversity antennas
Two antennas in same sector act as diversity receiving antennas for
each other, and have same vertical height. Maximum horizontal
distance (d) between antennas satisfies engineering requirements.
Following formula determines value of horizontal distance (d):
d ≥ 10λ–20λ (or H/d = 11). Unit of measurement: m
Where:
d is horizontal distance between diversity antennas.
H is vertical height from antenna to ground.
λ is carrier wavelength.
For example, diversity distance of 1900 MHz carrier must be more than
59.055 inch (1.5 m) while that of 800 MHz carrier must be more than
137.79 inch (3.5 m).
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Antenna Installation Flow Chart
Figure 43 shows antenna installation flow chart.
F IGURE 43-ANTENNA INSTALLATION F LOW C HART
Selecting Installation Position
Select installation position according to engineering design. Incase of
failure prepare a secondary engineering design, negotiating with customer
and design institute, based on: local coverage requirements, spatial
diversity requirements, antenna azimuth and tilt.
Moving and Hoisting Antenna
To mount an antenna on a tower, use rope and pulley block to hoist
antenna. Carry antenna jumper and all accessories such as measuring
tools, safety belts, adhesive tapes and straps to tower top platform and
keep them in a safe place.
Put small metal articles like antenna fixing parts and wrenches in a sealed
canvas tool bag before hoisting. Knot rope at both ends of antenna for
easy coordination of staff both on and under the tower.
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Figure 44 illustrates hoisting process.
F IGURE 44-HOISTING AN A NTENNA
1. Rope 2. Pulley block
3. Knot rope at both ends of antenna
To mount an antenna on roof, move antenna and installation materials to
installation position manually.
Caution:
66 Confidential and Proprietary Information of ZTE CORPORATION
Personnel on and under the tower should coordinate in hoisting an antenna.
Personnel under the tower should pull antenna away from tower body to avoid
damage.
Chapter 5 - Main Antenna Feeder System Installation
Uni-Directional Antenna Installation
This section describes Kathrein antenna installation procedure. Follow
installation instructions provided with antenna.
Take following steps to install uni-directional antenna:
1. Assembling antenna accessories
Directional antenna has a number of installation fasteners. Follow
instructions provided along with antenna. For example, Kathrein
antenna has two types of fasteners: 738516 and 737974. Before fixing
antenna, assemble fastener 737974 to antenna ends and then connect
fasteners 737974 and 738516. Install all accessories with spring and
flat washers. Fix antenna angle adjustment accessories to antenna
under the tower.
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2. Fastening antenna onto the pole
Fix uni-directional antenna with accessories installed onto antenna pole.
Do not tighten screws to facilitate possible azimuth adjustment and tilt.
Figure 46 shows antenna fixing supports.
F IGURE 46-ANTENNA FIXING S UPPORT
Adjust antennas to appropriate height, Figure 47 shows use U-shaped
bolts to fix antenna tilt angle, so that input and output ports of
antennas face downwards.
F IGURE 47-U-SHAPED BOLT
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Chapter 5 - Main Antenna Feeder System Installation
3. Adjusting antenna azimuth
Take following steps to adjust antenna azimuth.
i. Determine antenna azimuth using a compass and installation
direction according to engineering design drawing.
ii. Turn antenna slightly to adjust direction. At the same time measure
antenna direction with a compass to minimize error (generally not
more than 5°).
iii. Put special adjusting tool on antenna, aiming at target through
telescope, and turn antenna to acquire designed angle. Figure 48
shows this process.
iv. Tighten fastener 738516, after adjusting antenna azimuth.
F IGURE 48-AZIMUTH ADJUSTING T OOL
1
2
1. Antenna 2. Target direction
3. Observation direction 4. Telescope
5. Dial
3
5
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4. Adjusting antenna tilt
Take following steps to adjust antenna tilt
i. Adjust tilt meter angle required by the engineering design.
ii. Turn antenna top slightly and hold antenna from its top. Adjust tilt,
till the bead is centered and adjusted tilt meter is next to antenna.
Figure 49 shows angle gauge.
F IGURE 49-AZIMUTH G AUGE
0
2
5
1
2
1
1
8
7
6
5
6
4
0
7
3
2
0
8
1
90
0
1
0
8
2
0
3
7
4
5
6
7
8
0
1
0
2
0
3
0
4
0
5
0
0
6
0
5
2
1
5
1
0
2
0
3
0
4
0
5
0
5
0
DIAL
1
2
1
8
7
6
6
5
0
4
7
0
3
2
8
0
1
90
0
1
8
0
2
3
7
0
4
6
5
0
6
7
8
Figure 50 shows detailed procedure:
Rotate dial to required set angle.
Press object to be measured against the dial chassis firmly, and move
them together until bubble in air bleeder stays in middle of two
indication rings.
F IGURE 50-ADJUSTING T ILT ANGLE
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iii. After adjusting tilt, tighten the fastener 737974. Figure 51 shows to
adjust antenna tilt.
F IGURE 51-ADJUSTING ANTENNA T ILT
1. Antenna pole 2. Kathrein antenna
Omni-Directional Antenna Installation
Take following steps to install an omni-directional antenna:
1. Adjust antennas to appropriate height. Figure 52 shows to use Ushaped bolts to fix antenna onto the antenna pole. Ensure that
antennas input and output ports face downwards.
F IGURE 52-OMNI-DIRECTIONAL ANTENNA INSTALLATION
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ZXC10 CBTS O1 Hardware Installation Manual
2. Measure verticality of antenna and ensure that antenna is vertical.
3. Fasten screws with a spanner.
Note:
To reduce working time at heights and to improve joint connection and
waterproof quality. Connect jumper and antenna, and conduct waterproof
treatment on the joint before fixing antenna on the pole.
Main Feeder Installation
Install the main feeder properly to minimize signal loss and for reliable
function. Figure 53 shows CBTS O1 main feeder overall structure.
F IGURE 53-CBTSO1MAIN F EEDER
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Chapter 5 - Main Antenna Feeder System Installation
Antenna Jumpers Installation
Antenna jumper is a super-flexible jumper connecting antenna and main
feeder cable. Use 1/2" super-flexible jumper for BTS system. Jumper
connectors depend on antenna and main feeder cable. Usually, two
connectors are male DIN connectors.
Following section describes antenna jumper installation:
1. Select an appropriate path for jumper by taking into consideration
factors as: reliability, convenience, proper length and proper water
drainage.
2. Fix antenna connector and jumper with appropriate torque (typical
value for DIN connector is 1.7 N m ~ 2.3 N m). Figure 54 shows
connecting jumper.
F IGURE 54-CONNECTING J UMPER
3. Similarly fix main feeder cable connector and jumper with an
appropriate torque.
4. Figure 55 shows to fix jumper with feeder cable clips with maximum
space of 29.921 inch (760 mm). Ensure minimum space between
feeder cable clips when wind speed is over 160 km/h.
F IGURE 55-FIXING J UMPERS WITH F EEDER C ABLE C LIPS
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ZXC10 CBTS O1 Hardware Installation Manual
5. Ensure antenna and feeder cable performance and seal connectors with
waterproof self-adhesive tape and PVC tape.
While installing 1/2" super-flexible jumper, ensure following:
Minimum bending radius of one-time bend is 4.921 inch (125 mm).
Figure 56 shows one bend jumper.
F IGURE 56-ONE B END
Minimum bending radius of repeated bend is 7.87 inch (200 mm).
Figure 57 shows multiple bend jumpers.
F IGURE 57-MULTIPLE B END
Feeder Cable Installation
Connect main feeder cable to two jumpers, one to antenna and other to
cabinet using 7/8" foamed feeder cable. Both connectors are female DIN
connectors.
Ensure following mechanical properties while feeder cable installation:
Minimum bending radius of one-time bend is 15.74 inch (400 mm).
Minimum bending radius of repeated bend is 17.71 inch (450 mm).
Maximum hoisting length for feeder cable by the hoisting trawl is
2362.20 inch (60 m).
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Chapter 5 - Main Antenna Feeder System Installation
Take following steps for feeder cable installation:
1. Ensure cable required length and cut off extra cable.
2. Prepare main feeder DIN connector at antenna side.
3. Use a pulley or hoisting trawl to hoist feeder cables to tower. Figure 58
shows hoisting trawl.
F IGURE 58-CAB LE H OISTING TRAWL
4. Make main feeder DIN connector at the other side.
5. Use feeder cable clips at every 47.24 inch (1.2 m), and add more
according to requirement, so that feeder lies closely against installation
pole. Figure 59 shows to fix feeder cable.
F IGURE 59-FIXING F EEDER C AB LE
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6. For floor mounted BTS tower, ensure feeder cable is properly grounded
at 19.68 inch ~ 39.37 inch a (500 mm ~ 1000 mm) above the bend
where it connects antenna and leaves tower body, and outside the
entrance to the equipment room. For feeder cable longer than 2362.20
inch (60 m), ground it in the middle and connect its metallic outer
layer to grounding busbar through grounding kit. Lead a tin plated
copper wire with a cross section area more than 95 mm
flat steel out of busbar to connect corresponding grounding tower point.
Ensure following while connector installation:
Keep feeder cable always straight.
Use special-purpose tools for cutting feeder cables.
Measure cable length precisely.
Use knife to strip the sheath of feeder cable avoid scratching external
conductor.
Keep plug-in components firm while tightening connector with spanner.
Turn connector fastener so that connector is fastened firmly.
Attach labels on both ends of main feeder cable before it is placed onto
the tower.
2
or zinc-plated
Lightning Arrester Installation
Connect all cables coming out of BTS antenna equipment room to lightning
arrester, which are connected to ground cable. There are various lightning
arresters, this section describes λ/4 stub as an example.
Take following steps to install lightening arrester:
1. Install lightning arrester between 7/8" main feeder cable and 1/2"
cabinet-top jumper after main feeder cable enters equipment room.
Lightening arrester has two DIN connectors, one is positive and other
is negative. Keep maximum installation torque for lightning arrester
with DIN connectors up to 25 N m, and with N connectors up to 1.7 N
m. Use adjustable torque spanner to adjust torque to specified value.
2. Lightning arrester has four RF ports, which connects to 7/8" main
feeder cable and 1/2" cabinet-top jumper. RF ports can be connected
either to antenna or to BTS, which provides protection against lightning.
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Figure 60 shows lightning arrester side view.
F IGURE 60-LIGHTNING ARRESTER S IDE V IEW
3. Connect lightning arrester grounding pole to main grounding pole or
system grounding ring, with a minimum possible grounding resistance.
4. Do not seal connectors before feeder cable performance test. Seal
connectors with self-adhesive tape if test result is satisfactory. Figure
61 shows this process.
F IGURE 61-SEALING L IGHTNING A RRESTER
Lightning arrester installation precautions:
Do not expose RF ports outdoors.
During installation, make sure that all grounding contact surfaces are
clean, dry and not oxidized.
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ZXC10 CBTS O1 Hardware Installation Manual
Make sure that grounding port of the lightning arrester is connected to
main grounding pole or grounding ring of system to ensure minimum
grounding resistance.
Install lightning arrester properly.
Make sure that working frequency marked on lightning arrester is
complies working frequency of BTS system.
Grounding Kit Installation
Grounding kit serves to connect feeder cable external conductor and tower
frame. Install grounding kit at feeder cable top near antenna and at feeder
cable end near tower bottom. For a feeder cable longer than 2362.20 inch,
connect a grounding clip in the middle.
Take following steps to install grounding kit:
1. Fix grounding kit grounding end. Mark corresponding position on 7/8"
feeder cable where grounding kit is installed, and strip 7/8" feeder
cable sheath at installation position.
2. Put grounding kit grip ring around feeder cable external conductor, and
then buckle the ring. Figure 62 shows this process.
F IGURE 62-BUCKLING G RIP RING
3. Use waterproof self-adhesive tape to wrap entire connecting place.
Overlap each layer as half of the previous layer each time. Figure 63
shows this process. Keep wrapping direction same as buckling direction
of grip ring to make connection secure. Press adhesive tape along
grounding kit edge to make tape fit in closely with grip ring of
grounding kit.
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F IGURE 63-WINDING W ATERPROOF A DHESIVE T APE
4. Use electrically insulated tapes to wrap entire connecting place. Wind
in semi-overlapping mode so that one layer is 0.984 inch higher than
previous layer. Figure 64 shows this process. Overlap electrically
insulated adhesive taps by half that of previous for each loop. Pull tape
to a proper length to avoid folding. Press tape with both hands to make
sure that layers are in good contact.
F IGURE 64-WINDING E LECTRICALLY I NSULATED A DHESIVE T APE
5. Connect grounding kit grounded end to tower body or special wiring
pole. Remove paint and oxide around connection place with a 0.511
inch radius (13 mm). Apply antioxidant grease to clean area to ensure
proper electrical contact.
Warning:
Never install grounding kit during lightning to avoid personal injury.
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Cabinet Jumper Installation
Connect cabinet and main feeder cable by a 1/2" super-flexible feeder
cable. Jumper connector depends on cabinet and main feeder cable.
Usually both connectors are positive DIN connectors.
Connect antenna feeder jumper to one of fixed antenna feeder bases
(HYCOM1 ~ HYCOM6) on cabinet bottom.
Testing Antenna Feeder System
Test antenna feeder to check whether antenna matches feeder cable and
works properly. This test involves receiver and transmitter indexes. Main
tests are voltage standing wave ratio (VSWR) and RF transmit power test.
Ensure that following conditions are satisfied before antenna feeder
system test:
Antennas and feeder cables are installed and interfaces connected to
antennas are disconnected.
Feeder cable and connectors are in good condition and not damaged,
and connectors are connected properly, and antennas point to right
directions.
Connectors are not sealed with adhesive tapes.
Warning:
Avoid high-intensity microwave radiations during high-intensity RF signal
device operation.
Do not screw off connectors of transmitter output feeder or antenna feeder
cable during operation.
VSWR Test
VSWR test refers to voltage standing wave ratio (VSWR) test of TX
antenna. BTS tester SITE MASTER 332B is recommended for test. VSWR
must be smaller than 1.5 otherwise check antenna feeder system again.
BTS system generates primary and secondary alarms for VWSR more than
1.5.
RF Transmit Power Test
RF transmit power refers to average RF carrier power. Carry out RF
transmit power test to determine power at input end of combiner and
verify average transmit RF carrier power. Use site test instrument for test.
BTS tester MASTER 332B is recommended. Conduct test at input end of
combiner (output end of power amplification module).
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Waterproofing Connectors
Seal the connectors of each cable after ensuring that antenna feeder
system test is complete and result is OK. Use two types of adhesive tapes
for sealing: waterproof self-adhesive insulated tape and electrically
insulated adhesive tape. First wrap connectors with electrically insulated
adhesive tapes and then with waterproof adhesive tapes, and finally with
electrically insulated tapes again.
Electrically insulated adhesive tapes must be fire and cold-resistant and
corrosion-proof, and must be able to work under a voltage of 600 V.
Ensure maximum working temperature does not exceed 80°C.
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Chapter 6
GPS Antenna Feeder System
Installation
This chapter describes GPS antenna feeder system installation:
GPS antenna feeder system structure
Installation position and requirements
Installation requirements
Lightning protection requirements
GPS connector preparation
NJ-9 GPS connector
GPS connector preparation procedure
GPS connector installation check
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Chapter 6 - GPS Antenna Feeder System Installation
GPS Antenna Feeder System
Structure
Figure 65 shows GPS antenna feeder system composition.
F IGURE 65-GPSA NTENNA F EEDER S YSTEM
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Installation Position and
Requirements
There are two types of GPS antenna installation positions:
Tower Mounted
Figure 66 shows position of a tower mounted GPS antenna.
F IGURE 66-TOWER M OUNTED GPSANTENNA
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Chapter 6 - GPS Antenna Feeder System Installation
Roof Mounted
Figure 67 shows position of a roof mounted GPS antenna.
F IGURE 67-ROOF M OUNTED GPSA NTENNA
Caution:
Both installation modes require that no obstacles are present in 150° GPS
antenna elevation.
Installation Requirements
Following are GPS antenna installation requirements:
GPS antenna installation position should have a broader view to track
on maximum satellites.
Keep coaxial cable short to reduce signal loss and lightning induction.
For a tower mounted GPS antenna, keep horizontal distance between
GPS pole and tower up to 11.81 inch (300 mm).
Do not install GPS antenna under microwave antenna, high-voltage
lines, television transmitting tower, or within radiation range of a
mobile system antenna.
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Lightning Protection Requirements
Following are lightning protection requirements to install a GPS antenna:
Install GPS antenna within 45° lightning protection coverage area of
tower. Otherwise, install a special lightning arrester for the GPS
antenna.
Place GPS antenna away from lightning strikes. If it is tower mounted,
install it in a safe place on the roof or in tower lower part.
Ensure that pole supporting GPS antenna is grounded.
NJ-9 Connector Preparation
This section describes NJ-9 GPS connector preparation procedure:
NJ-9 Connector
For GPS feeder cables shorter than 80 m use NJ-9 GPS connector. Figure
68 shows NJ-9 GPS connector.
F IGURE 68-NJ-9GPSCONNECTOR
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Chapter 6 - GPS Antenna Feeder System Installation
Figure 69 shows NJ-9 GPS connector parts.
F IGURE 69-NJ-9GPSCONNECTOR P ARTS
1. Shell 2. Tail connector
3. Air proof washer 1 4. Air proof washer 2
5. Air proof washer 3 6. Insulating washer
7. Insulating washer 8. Insulation plate
9. Inner conductor pin
Connector Preparation Procedure
Take following steps to prepare GPS connector:
1. Stripping GPS cable shell
Use sharp knife to strip GPS cable outer covers about 0.41 inch ±
0.009 inch (10.5 mm ±0.25 mm). Avoid damaging inner copper wires.
Figure 70 shows stripped cable.
F IGURE 70-STRIPPING GPSC ABLE
10.5 mm0.25 mm
±
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2. Installing connector outer parts
Assemble all NJ-9 outer parts from left to right on cable. Figure 71
shows external conductor assembly.
F IGURE 71-EXTERNAL CONDUCTOR A SSEMBLY
Stretch copper wires back at one end to metal washer. Figure 72
shows white shielded layer after stretching copper wires.
F IGURE 72-SHIELDED L AYER
Put sliver coated flange between shielded layer and insulation layer.
Finally adjust shielded layer between flange and metal washer. Figure
73 shows inserting external conductor flange.
F IGURE 73-INSERTING E XTERNAL C ONDUCTOR FLANGE
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Chapter 6 - GPS Antenna Feeder System Installation
3. Stripping insulation layer
Strip insulation layer so that copper core appears. Avoid damaging
copper core and cut insulation layer at equal lengths. Keep outer
copper core length between 0.27 inch to 0.287 inch (7 mm to 7.3 mm).
Figure 74 shows stripping insulation layer.
F IGURE 74-STRIPPING I NSULATION L AYER
7.0 mm ~ 7.3 mm
Figure 75 shows cable after stripping insulation layer.
F IGURE 75-AFTER S TRIPPING INSULATION L AYER
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ZXC10 CBTS O1 Hardware Installation Manual
4. Welding inner conductor pin
Insert white insulation plate till it touches flange tightly. Figure 76
shows insulation plate insertion.
F IGURE 76-INSERTING I NSULATING P LATE
Melt a very thin layer of tin (Sn) and cover copper core homogeneously.
For fixed temperature iron, adjust temperature to 350 degree Celsius
and keep it for 10 seconds. For normal iron add more time till tin is
melted properly. Insert copper core into pin tail hole. Ensure that pin
tail touches insulation plate. Use iron to raise temperature when
required. Figure 77 shows welding inner conductor pin.
F IGURE 77-WELDING I NNER C ONDUCTOR P IN
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Chapter 6 - GPS Antenna Feeder System Installation
5. Cutting Shielded layer
Use plier to cut copper wires on shielded layer. Figure 78 shows this
process.
F IGURE 78-CUTTING S HIELDED LAYER
Plug pin into white supporting ring and assemble shell and cable.
Figure 79 shows this process.
F IGURE 79-ASSEMBLING SHELL AND C ABLE
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ZXC10 CBTS O1 Hardware Installation Manual
6. Shell tightening
Put a piece of cloth between wrench and shell, use wrench to tighten
shell and tail connecting parts. Figure 80 shows this process. Ensure
that torque lies in the range of 98 Nm to 120 Nm and pin is at one
level inside the cable.
F IGURE 80-SHELL T IGHTENING
GPS Connector Installation Check
After GPS cable installation check following:
Pin should be at same level inside the shell.
Connector strength must be more than 60 N.
Insulation resistance between pin and shell must be more than 5000 M
ohms.
Check resistance between feeder cable pins and conductors head.
Check resistance between conductors head.
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Chapter 6 - GPS Antenna Feeder System Installation
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Chapter 7
Board Installation
This chapter describes CBTS O1 board installation:
Installation flow chart
Installation procedure and precautions
Installation precautions
CBTS O1 board slot
RFS board installation
BDS boards installation
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Chapter 7 - Board Installation
Installation Flow Chart
Figure 81 shows board installation flow chart.
F IGURE 81-BOARD INSTALLATION F LOW C HART
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ZXC10 CBTS O1 Hardware Installation Manual
Installation Procedure and
Precautions
This section describes board installation in different plug-in boxes.
Caution:
Ensure power is switched off before board installation. Only TRX and RFE are
hot pluggable.
Installation Precautions
Take following precautions while board installation:
Ensure anti-static wrist strap is grounded before operation.
Ensure that slots for installing boards are consistent with required slots.
To avoid damage, push boards slowly along the guide rail.
CBTS O1 Board Slot
Figure 82 shows CBTS O1 board slot.
F IGURE 82-CBTSO1BOARD S LOT
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Chapter 7 - Board Installation
RFS Board Installation
Take following steps to install RFS boards:
1. Wear anti-static wrist straps.
2. Take boards out of anti-static bags and check damaged parts.
3. Select slot position for board installation.
4. Gently insert board vertically along the guide slot.
5. Lock board by pressing down ejector lever.
BDS Board Installation
Take following steps to install BDS board:
1. Preparations
Before installation, take board out of antistatic bag and check them. If
any damages are found, register fault types, and pack them for repair.
2. Board insertion in plug-in box.
While board insertion, determine board type and its slot, keep ejector
lever in de-locking position. Push board along guide rail slowly into slot.
Figure 83 shows to push board along guide rails till it reaches bayonet
of extraction tool.
F IGURE 83-BOARD PLUGGING (STEP 1)
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ZXC10 CBTS O1 Hardware Installation Manual
Push board forward and turn down extraction tool ejector levers on
both sides. A click indicates that extraction tool is in the position and
its ejector levers are hooked. Figure 84 shows this process.
F IGURE 84-BOARD PLUGGING (STEP 1)
3. Tightening screws
Tighten captive screws on extraction tools with flathead or Philips
screwdrivers. Figure 85 shows this process.
F IGURE 85-BOARD PLUGGING (STEP 3)
Note:
To uninstall a board follow the reverse process that of board installation.
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Chapter 8
Hardware Installation Check
This chapter describes CBTS O1 hardware installation check:
Cabinet installation check
Cabling rack installation check
Cable installation check
Power and grounding cables
Trunk and RF cables
Board and sensor installation check
Antenna and GPS feeder system installation check
1/2” indoor jumper
Lightning arrester
Primary and GPS feeder
Three-way feeder clamp
1/2” outdoor jumper
Antenna
Feeder SWR
Environment check
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