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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Security level: Internal
www.huawei.com
2008-05
BTS HARDWARE/RF INSTALLATION
PROCEDURES AND POWER UP PROCESS.
Wireless Case & Training Department
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 2
PrefacePreface
This course will introduce the site Equipment (BTS), RF
installation and power up procedures.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 3
BTS3900A (Ver.B) Quick Installation Guide(04)(PDF)-EN
<BTS3900 GSM V300R008 & R009 installation Guide product>
TP48300-A Quick Installation Guide(V100R001_09)
TP48200A-X3H4 & X3H5 Quick Installation Guide(V100R001_02)
Reference Reference
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4
After this exercise, you can:
. Understand the installation procedure for EMTS project.
Master the key point of BTS installation
. Master wireless project implementation problem TOP 10
Understand the possible solutions to the problems.
ObjectiveObjective
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 5
Chapter 1Chapter 1 Installation procedure Installation procedure
for EMTS project . for EMTS project .
Chapter 2 The powering up of
Equipment process.
Chapter 3 Snags after installation.
Chapter 4 Possible solutions.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 7
CHAPTER ONE: INSTALLATION PROCEDURE FOR EMTS PROJECT
If material arrive site, the SBC should use a checklist to check
the equipment and the ensure that the materials are complete
as printed on the MR or DN.
If everything is confirmed ok, the SBC should unpack the
materials gently to avoid damaging of the equipment.
Ensure no damaged or missing item. If there is any damaged or
missing item, the SBC should inform Huawei engineer on site
and indicate such on the check list. The SBC will get a
corresponding amercement according to the damaged or
missing item.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 8
INSTALLATION PROCEDURE
The installation
procedure is best
described in two folds:
The equipment (BTS)
part procedure
The RF part procedure
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 9
THE EQUIPMENT(BTS) PART PROCEDURE.
The
installation flow
chart for this
part is as
follows:
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 10
INSTALLING THE BASE, RFC AND APM30H
Check the plinth and
mark out according
design.
The base of the
Battery cabinet and the
RFC/APM30H cabinet
must be separated by a
distance of at least 10cm.
Ensure that you use
expansion bolt to make
the base firm on the plinth.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 11
INSTALLING THE BATTERY & RFC CABINET
Ensure you install
the battery cabinet on
the left side and the
RFC cabinet on the
right as shown in the
picture below:
APM30H & RFC
cabinet
IBBS battery
banks set up.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 12
INSTALLING EARTHING CABLES.
The grounding cable
of diameter 16mm^2 is
used to interconnect
the two cabinets and
must be connected to
the earthing terminal
(Bar) as shown below: To the earthing terminal on-site.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 13
NOTES; During this installation the SBC is not expected to use
short cables that may lead to joining of the cables.
The SBC should ensure tight connections at all
terminal points on the grounding bar.
The SBC must apply denso-paste at all the grounding
terminal points.
SBC must route the cable through a PVC pipe to
make the installation neat and protect the cables.
All earthing cables must be routed through the cable
hole accordingly.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 14
CHECKING OF THE BOARDS AND MODULES
The SBC should check the boards e.g.
DRFU, modules e.g. PSU, PMU etc that are
pre-loaded in the cabinet from factory, if they
are complete and well positioned in the
cabinet according to configuration. If at this
stage and there is any alteration from the
physical connection, please report to office.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 15
INSTALLING OF OTHER COMPONENTS.
The other components that
are installed are basically;
The environment monitoring
unit for outdoor (EMUA).
The transmission radio [IDU]
which can be RTN620 or
RTN950 depending on MW
config
The DDF for the termination of
both BTS and Microwave E1
cables
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 16
INSTALLATION OF CABLES
The cables that are installed are:
The APM30H power cable from
the ACDB to EPS
The battery cable from the battery
bank cabinet which must be red
and black. RED(+) and BLACK(-)
The power cable of the EMUA
and the IDU which will run from the
power ports of the components to
DC voltage output terminal of the
EPS.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 17
INSTALLATION OF CABLESThe external alarm cables from tank, generator and other sensors like smoke The battery temperature sensor that is installed in the battery cabinetThe pictures show the external alarm port that is physically terminated during installation for BTS3900A
External alarm Port on EMUA
monitor portPort NO.
description Remark
S1+/S1- 1 Generator 1 on load S2+/S2- 2 Generator 1 Fault S3+/S3- 3 Fuel Low Level S4+/S4- 4 Fuel Tank Full S5+/S5- 5 Generator 2 on load S6+/S6- 6 Generator 2 Fault S7+/S7- 7 spareS8+/S8- 8 spareS9+/S9- 9 Rectifier Fuse alarm Rectifier
S10+/S10- 10 Rectifier SPD Fail RectifierS11+/S11- 11 Rectifier Battery LVD RectifierS12+/S12- 12 Rectifier SMR Fail RectifierS13+/S13- 13 Rectifier DC Low RectifierS14+/S14- 14 Rectifier AC Fail RectifierS14+/S15- 15 Rectifier PSU shutdown Rectifier
Gate 12 VG Door AlarmIndoor site
only Smoke 24VS Smoke alarm
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 18
Rectifier External alarm continued.
1.1 Rectifier alarms
In ET P6 we use TP48200A rectifier for outdoor site. Considering
TP48200A,there are 6 alarms in rectifier cabinet. 2 ports for each alarm,
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 19
Rectifier External alarm continued.
1.2 Rectifier alarms
In ET P6 we use TP48300 rectifier for indoor site. Considering
TP48300 ,there are 7 alarms in rectifier cabinet. 3 ports for each
alarm, we just use port “NO” and “COM”
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 21
Rectifier External alarm continued.
In EMUA we use S9~S14 to monitor these alarms.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 22
Rectifier alarm continues.
Port mapping in EMUA:
Port in EMU Port NO Alarm Description in BSC Severity
S9+/S9- 9 Rectifier Fuse alarmCritical
S10+/S10- 10 Rectifier SPD FailMinor
S11+/S11- 11 Rectifier Battery LVDMinor
S12+/S12- 12 Rectifier SMR FailMajor
S13+/S13- 13 Rectifier DC LowMinor
S14+/S14- 14 Rectifier AC FailCritical
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 23
Special alarms
2.1 Installing Smoke sensor:
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 24
Special alarms
2.2 Installing Water Sensor:
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Special alarms
2.3 Installing Humidity/Temperature Sensor:
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 26
Special alarms
2.4 Installing Door Status Sensor:
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
BTS – MW CROSS CONNECTION OF 4E1 ON THE DDF FOR ONLY ONE IDU ON SITE
Page 28
RTN620 & BTS 3900A
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
BTS – MW CROSS CONNECTION OF E1 ON THE DDF FOR ONLY TWO IDU ON SITE
Page 29
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
BTS – MW CROSS CONNECTION OF 4E1 ON THE DDF FOR ONLY ONE IDU ON SITE
Page 30
RTN950 & BTS 3900A
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 31
INSTALLATION OF BATTERIES [for back up]
The Engineer should
gently load batteries
in the battery cabinet
to provide a back up
system for the BTS.
The pictures shows
the necessary steps
which will be
observed.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 32
Notes;
Ensure that the correct polarity is maintained in the
cabinet and on the EPS of the BTS.
Ensure that connecting plate between one battery
and the other battery is tightened well.
Ensure that temperature sensor off the battery is
connected and terminated on the correct port as
shown by the picture.
Ensure that the output DC voltage after connection is
in the range 48v~53v
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 34
PART TWOTHE RF & MW PART PROCEDURE
Generally , the RF and MW part of the installation involves the
installation of the following:
The jumpers at the BTS end of the line.
The feeder cable which can be 7/8 or 5/4 inch diameter coaxial cable
depending on the height of the tower.
The coaxial connectors at both ends of the cable which can be male
or female type.
The jumper cables at the antenna end on the tower
The antenna which can be single band or dual band depending on
the configuration of the site.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 35
RF PROCEDURE
Couple your antenna and ensure
that then mechanical and electrical
tilt angle is set according to design.
Put enough water proof and
insulation tape to avoid water from
entering the feeder connector joint.
Electrical tilts angles set to 2
Mechanical tilts angles set to 0
Insulating & water proofing
connectors
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 36Page 36
Antenna and Feeder Cable B, C
System Sector Configuration of Colored Ring Labels Remarks
The first set of system
1 Main and diversity: red, two rings •Cell default definition: cell 1 is in the north, and the cells in the clockwise direction are cell 2 and 3 respectively.
•When multiple systems share a site, the feeders of different systems need to be distinguished. For the second set of system, add a white ring besides the red, yellow, and blue rings. For the third set of system, add two white rings besides the red, yellow, and blue rings.
Diversity: red, one ring
2 Main and diversity: yellow, two rings
Diversity: yellow, one ring
3 Main and diversity: blue, two rings
Diversity: blue, one ring
The second set of system
1 Main and diversity: one white ring + two red rings
Main and diversity: one white ring + one red ring
2 Main and diversity: one white ring + two yellow rings
Main and diversity: one white ring + one yellow ring
3 Main and diversity: one white ring + two blue rings
Main and diversity: one white ring + one blue ring
Commonly used three-sector mains and diversity antenna:
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 37
RF PROCEDURE CONTINUED.
Hoist the antenna gently up the tower with a control line to avoid
the antenna from hitting the tower.
Cut the feeder cable according to the height of the tower in the
design specification
Make the connector perfectly to avoid impedance mismatch at
both ends of the cable.
Hoist the cable gently to avoid damage.
Clamp the feeder from top to bottom, making sure that the
clamps are uniformly distributed with at least 2m spacing along
the ladder.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 38
RF INSTALLATION continued.
Connect the single RF cable between the feeder and the BTS,
making sure that the joint is insulated and water proofed. The
picture below depicts the scenario.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 39
RF INSTALLATION continued.
Ground the feeder cable at 3
points along the tower, ensuring
that the lightening proof grounding
cable are all terminated on the Bus
bar mounted on the tower. Feeder grounding
kit
Grounding bar
Grounding insulating & water
proofing tapes
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 40
SWEEP TEST PROCEDURES FOR VSWR TEST STAGES
When the feeder cable connection is complete, the next step is to carry out sweep test for each line of both 900M and 1800M. Using
Step 1 : DTF , Return lost and Cable lost;
1.1 Press the MODE key.
1.2 Select FREQ-RETURN LOSS using the Up/Down arrow key and press ENTER.
1.3 Connect the calibrator Module to the RF port and calibrate the Site Master.
1.4 Select the appropriate frequency range, as describe in the procedure above.
1.5 860 MHz- 970 MHZ for M900 only and 1710MHz-1880MHZ for M1800 only
1.6 Press the START CAL key. Press ENTER, the calibration status indicator will change from calibrated to uncalibrated and after calibration turns back to calibrated in the display.
1.7 Connect the RF cable of the feeder to the RF port of the site master and check the signal pattern on the GUI
1.8 Press MARKER and then MARKER to PEAK to view the VSWR peak value of the feeder cable.
1.9 Repeat step 1.2 , for EMTS projects VSWR test reading must not be >1.3
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 42
CHAPTER THREE POWERING UP STAGES OF BTS 3900A OUTDOOR
Note:
Make sure all necessary ATS setting for Generators and a 16mm 4 core, 4 wire power
cable
connecting from ATS to ACDB is well connected as design , check all phases for
Generators 1& 2 in ATS if they are balanced and confirm the accuracy of the voltage
needed to supply the equipment on-site using multimeter.
Step 1 :
Check BTS 3-phases cables on ACDB if voltage supplied is according to range of AC
voltage
needed between 240V using millimeters to check . Make sure you switch ON AC breaker
For BTS inside ACDB.
Check also the 3-phases cables of BTS AC (EPS) box that came from ACDB ,make sure
supplied voltage is according to range of AC voltage needed between 240V using
multimeter to check.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 43
Power up process continued.
Step 2 :
After you carefully check supplied voltages and
confirmed accuracy AC voltage needed by BTS
is okay then , you can now start powering up the
BTS as specified.
When you power up the AC breaker of the ACDB,
Next you power up BTS 3900A AC breaker as
shown. the rectifier modules (PSU) comes up
also PMU. Ensure that the LED is green.
AC breaker to power up AC breaker to power up BTS 3900ABTS 3900A
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 44
Power up process continued.
STEP 3:
Power up the breaker in
the battery cabinet
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 45
Power up process continued.
STEP 4:
Power up the battery
switch on the EPS sub
rack of the BTS
cabinet and then the
BBU DC breakers as
shown.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 46
Power up process continued.
STEP 5:
Power up the BBU
UPEU switch as
shown
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 47
Power up process continued.
STEP 6:
Power up the switch
for the boards on the
RFC cabinet which
can be DRFU or
GRFU as shown
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 48
Power up process continued.
STEP 7:
After this step switch ON transmissions breakers from rectifier , then switch ON IDUs PXC Card pen switch and IF Card pen switch.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 49
Power up process continued.
STEP 8:
Wait for some minutes for the BTS boards to
boot and register at the BSC, then check the
alarm status of the boards and the modules. If
there is any alarm, check the cause and
troubleshoot.
if its a major alarm, escalate to the Huawei
BSS Engineer in charge of the site.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 50
PROCEDURE FOR POWERING UP OF INDOOR BTS 3900
STEP 1:
Power ON rectifier from ACDB breaker controlling connecting point to Rectifier
STEP 2:
Power ON rectifier AC breaker under at a connecting point to ACDB, make sure you check voltage supplied not more range specified 240V using multimeter.
STEP 3:
Power ON DC breaker connecting BTS 3900 connecting point on LP breaker , make sure you check voltage supplied not more range specified -48V using multimeter.
STEP 4:
Power ON BTS 3900 indoor , first power ON BBU switch then power BBU, UPEU switch
STEP 5:
Power ON DRFUs and make sure all CPRI optical fibers were well connected and fixed tightly to CPRIs ports on DRFUs.
After this step switch ON transmissions breakers from rectifier , then switch ON IDUs PXC Card pen switch and IF Card pen switch.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 51
Pictures to show the position of the breakers on the TP48300A rectifier type..
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 52
Pictures to show the position of the breakers.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 53
CHAPTER 4 Wireless project problem
Feeder cables should be correctly adopted according to
specifications.
The azimuth and tilt angle of the installed antenna must accord with
design specifications.
The antenna connection and sector relationship are correct without
reverse connection and misconnection.
Waterproof and sealed measures for all outdoor jumpers and
feeder cables should be correctly adopted according to
specifications.
The trunk cable should be correctly adopted according to
specification without rosin joint.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 54
Wireless project problem
The feeder cable should be earthed at three point at least, and
has perfect waterproof treatments.
The feeder windows should have correct sealed measures and
waterproof bend.
The RF connector needs to be installed perfectly.
The lighting–proof arrester must be earthed, all ground cables
are connected to the outdoor protection ground bar of equipment
room after collecting.
Retain the additional engineering material for future use. There
couldn’t waste or throw away the engineering material optionally.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 56
Chapter 4 Hardware Quality StandardChapter 4 Hardware Quality Standard
4.1 General4.1 General
4.2 Main Equipment
4.3 Antenna and Feeder Cable
4.4 Power Cable and Grounding Rule
4.5 Other
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 57
Requirements for rectifying: Violation of Class A clauses All problems must be rectified or
else a memo must be signed with the Customer. If the Customer still does not agree to sign any memo although efforts have been made by multiple parties to coordinate with the Customer, a notice should be given to the related staff of Huawei such as the Engineering Management staff and a note must be indicated in the self-check report for future check.
Violation of Class B or C clauses Problems of this project: Except for the quality problems that cannot be rectified this project (the specific cause must be indicated in the self-check report for future check), all the other problems must be rectified. Outstanding problems before this project: Such problems must be rectified if such rectification is rendered possible in this project.
General
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 58
Chapter 4 Hardware Quality StandardChapter 4 Hardware Quality Standard
4.1 General
4.2 Main Equipment4.2 Main Equipment
4.3 Antenna and Feeder Cable
4.4 Power Cable and Grounding Rule
4.5 Other
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 59
Main Equipment
1. The RF cable connector needs to be installed perfectly to avoid the situation that the virtual connection would cause an abnormal VSWR and thus the normal system operation would be affected. (indoor, outdoor)2. The external lightning-proof arrester of cabinet should be installed according to its design requirements. Its connection should be firm. (outdoor)
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 60
Main Equipment
3. The cable connection of storage battery cabinet should be correct and reliable (check when an external storage battery exits). (outdoor)
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 61
Main Equipment
4. For all kinds of cable connectors, they must be clean before installation. If necessary, they should be cleaned according to specification. (indoor, outdoor)
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 62
Main Equipment 5. The connection of alarm cable should be correct and reliable (check when an external alarm box exits). (indoor, outdoor)
6. The parts of the rack should not be distorted. Which may be affect the equipment appearance. (outdoor) and the EMUA, DDF and RADIO(IDU) must be arranged in other as shown below:
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 63
7. The board can be plugged and unplugged smoothly. If there is any slot without board ensure to cover dummy slot.
Main Equipment
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8. The movable accessories of the cabinet work normal. (indoor, outdoor)
9. The collection cable of environment alarm connected to the base station should have reliable lightning-proof protection measures. (indoor)
10. The parts of the rack should not be distorted. Which may be affect the equipment appearance. (indoor)
11. Cabinet doors beside the main walkway should be aligned after they are installed. The installation error must be less than 5mm.(indoor)
12. The vertical errors of cabinet should be less than 3mm.(indoor, outdoor)
13. The gap between adjacent bases is not more than 3mm.(indoor)
Main Equipment
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Main Equipment
14. The rigid cables should not be cross inside the cabinet. They cannot be pulled too tightly. Some redundancy must be reserved at their bend place. They also need to be bent in a tidy and consistent way. (indoor, outdoor)
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 66
15. The cable labels are filled in and pasted correctly and reliably. Their positions are orderly and in the same direction. Cable labels should be stuck at the place 2cm away from their connector. They can be made in a uniform way according to customer requirements. (indoor, outdoor)
16. The part of peeling of the on-site cable should be covered with protection tube or insulating tape. (indoor, outdoor)
Main Equipment
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17. The PGND of main and slave cabinets must be interconnected by a copper wire when combining cabinets, the connection cable should be a yellow-green plastic insulating copper wire with a diameter of more than 10mm2, or using the short-circuit sheet metal to connect the metal shells of the two cabinets. The PGND of main and slave cabinets should be connected to the grounding bar in the equipment room respectively. When using the equipotential cable, its length should be less than 2m.(indoor)
Main Equipment short-circuit sheet
metal
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 68
18. When adjusting the level of the base by adjusting bolts, the pads should be added to its bottom to increase its stress area and avoid its distortion. (indoor)
19. The interconnecting piece on the top of the cabinet must be installed and tightened. (indoor)
20. PVC troughs should be installed on the wall for power and signal cables of alarm box. Redundant power and signal cables should be put under the floor or on the cabling ladder of alarm box side. (indoor)
Main Equipment
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21. Cables should be tied with uniform spacing and moderate tightness. Cable ties should be tied in a tidy way. Their redundant indoor parts should be cut from their bottom after they are tied without any spine. (indoor)
Main Equipment
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22. Jumpers are laid according to layers and sectors. (indoor, outdoor)
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24. The connection position of cable connector should reserve some redundancies. (indoor, outdoor)
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25. The rack-mounting ear should be perfect. If some breakages occur on it, repair activities should be done with spray paint. (indoor, outdoor)
26. The upper plane of antistatic floor in the equipment room cannot be higher than the lower plane of the base to avoid to affect the ventilation. (indoor
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 73
Chapter 4 Hardware Quality StandardChapter 4 Hardware Quality Standard
4.1.1 General
4.2 Main Equipment
4.3 Antenna and Feeder Cable4.3 Antenna and Feeder Cable
4.4 Power Cable and Grounding Rule
4.5 Other
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 74
1. The connection between antenna support and tower should be reliable and firm. The connection between antenna and its support should also be reliable and firm .(indoor, outdoor)
Antenna and feeder check: 1.1. The azimuth and tilt angle
of the installed antenna must accord with design specifications ;
1.2. The antenna connection and sector relationship are correct without reverse connection and misconnection ;
1.3. The calibration test and sensitivity test indexes of base station accord to requirements ;
Antenna and Feeder Cable
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 75
2. The azimuth error of the directional antenna should not be more than ± 5 degrees. Its tilt angle error should not be more than ± 0.5 degrees. (indoor, outdoor)
Antenna and Feeder Cable
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3. When the feeder cable is bent on the top of a building and then extended downward along the wall, the protective means should be used for the parts of contact with the wall corner. When the feeder cable enter to room along the roof, the feeder clamps should be used to fix the feeder cable. (indoor, outdoor)
Antenna and Feeder Cable
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4. When a feeder window is installed on the top of building to lead the feeder cable into the room, it must be sealed well. The antenna jumper and the feeder cable before the feeder winder must have waterproof bends. (indoor, outdoor)
Antenna and Feeder Cable
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5. The space between feeder clamps should be even and their direction should be same after installed. They should also be fixed firmly without any loose connection.
6. The feeder cables can not cross after distributed. In the room they should be neat and straight with same bend.
Antenna and Feeder Cable
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 79
7. The installation position of antenna should be accorded with the design document. (indoor, outdoor)
8. The distance between a directional antenna and the tower body should not be less than 1m. (indoor, outdoor)
Antenna and Feeder Cable
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9. Some redundancies 3~5mm should be reserved when cutting all of cable ties of outdoor. (indoor, outdoor)
Antenna and Feeder Cable
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10. The minimum bending radius of a feeder cable should not be less than 20 times of its diameter. (indoor, outdoor)
Antenna and Feeder Cable
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11. The jumper of the antenna should be tied along the rail of the support to the steel frame of the power. (indoor, outdoor)
Antenna and Feeder Cable
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Chapter 4 Hardware Quality StandardChapter 4 Hardware Quality Standard
4.1 General
4.2 Main Equipment
4.3 Antenna and Feeder Cable
4.4 Power Cable and Grounding 4.4 Power Cable and Grounding
RuleRule
4.5 Other
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 84
Power Cable and Grounding
1. Each power cable or ground cable should be a whole section of copper core cable without any connector in between. It also should be connected firmly according to specifications. (indoor, outdoor)
2. When making copper lugs at the two ends of a power cable or ground cable, they should be soldered or crimped firmly. (indoor, outdoor)
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3. The grounding cable and power cable of equipment is connected correctly. Their flat washers, spring washers and nuts are installed in a right order. The nuts are tightened properly. (indoor, outdoor)
Power Cable and Grounding
(1) Cable
(2) Nut
(3) Spring washer
(4) Flat washers
(5) bolt
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4. The redundant part of a grounding cable or power cable should be cut and cannot be coiled. (indoor, outdoor)
5. The grounding of antenna and feeder cable on the top of a building without a tower should be connected to the nearby lightning-proof protection grounding net of the roof. (indoor, outdoor)
Power Cable and Grounding
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6. The handle of lug and bare wire of a power cable or grounding cable should be wrapped with the tube or insulating adhesive tape, the copper wire can not be bared. (indoor, outdoor) and remember to put denso paste.
Power Cable and Grounding
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7. The front door of cabinet should be connected to the grounding bolt of the door on the rack by the delivered or purchased cable. The grounding cable of the door should be connected firmly. (indoor, outdoor)
Power Cable and Grounding
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8. The grounding bar must be wiped off rust and cleaned dirt before they are connected, in order to ensure their reliable connection. The outside grounding bar must be anticorrosion and antirust processed by using self-spray paint or other protection materials after they are connected in order to ensure their long-term good contact. Each connecting terminal should be installed correctly and firmly together with flat washers and spring washers. (indoor, outdoor)
Power Cable and Grounding
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6. The space between a power cable/ground cable and a signaling cable outside the cabinet should be more than 3 cm. (indoor, outdoor)
Power Cable and Grounding
3cm
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7. When the tower is more than 60 meters, add a grounding clip to the feeder in the middle of the tower. (indoor, outdoor)
8. If the length of feeder cable from the tower to the room on the roof (or cabling ladder) is more than 20 meters, a lightning-proof protection grounding clip should be added on the roof (or cabling rack). (indoor, outdoor)
9. The cable route for the power cable or ground cable should be accord with engineering document so that capacity expansion becomes easy. (indoor, outdoor)
10. The feeder cable goes into the room along the wall. If a cable ladder is used, it should be earthed. (indoor)
11. The grounding cable of feeder clips should extend from up to down. The angle between the grounding cable and the feeder cable should not be more than 15 degrees. (indoor, outdoor)
Power Cable and Grounding
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12. The diameter of the power cable, ground cable or equipotential cable between cabinets should meet the power distribution requirement. (indoor, outdoor)
13. The functions of power supply and fan are normal. (indoor, outdoor)
14. The power cable or grounding cable should be tied in a straight and tidy way with smooth bending. (indoor, outdoor)
15. The color of distributed power cables and ground cables should conform to the shipment, or satisfy requirements of the customer. (indoor, outdoor)
Power Cable and Grounding
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Power Cable and Grounding Rule B,C
16. When connecting two or more cables to a wire pole, the cross or back-to-back installation method is generally adopted. When lugs are overlapped, they should be bent at an angle of 45 or 90 degrees, the bigger lugs should be put on the bottom and smaller one should be put on the top. (indoor, outdoor)
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Chapter 4 Hardware Quality StandardChapter 4 Hardware Quality Standard
4.1 General
4.2 Main Equipment
4.3 Antenna and Feeder Cable
4.4 Power Cable and Grounding Rule
4.5 Others4.5 Others
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Retain the additional engineering material for future use. There couldn’t waste or throw away the engineering material optionally. A
The project should be implemented in compliance with related standards. for construction behaviors, safety in production, power supply operations and equipment room of the customer. A
The engineering supervisor must upload the completion photographs for the BTS along with Hardware Self-Check Report to the EPMS system. A
Others
Hardware Quality Standard V6.10 for Indoo
Hardware Quality Standard V6.10 for Outdo