This manual is proprietary to SAMSUNG Electronics Co., Ltd. and is protected by copyright.
No information contained herein may be copied, translated, transcribed or duplicated for any commercial
purposes or disclosed to the third party in any form without the prior written consent of SAMSUNG Electronics
Co., Ltd.
TRADEMARKS
Product names mentioned in this manual may be trademarks and/or registered trademarks of their respective
companies.
This manual should be read and used as a guideline for properly installing and operating the product.
This manual may be changed for the system improvement, standardization and other technical reasons without prior
notice.
If you need updated manuals or have any questions concerning the contents of the manuals, contact our Document
This annex describes the standard torque when assembling the fixing materials.
ABBREVIATION
Describes the acronyms used in this manual.
Conventions
The following types of paragraphs contain special information that must be carefully read
and thoroughly understood. Such information may or may not be enclosed in a rectangular
box, separating it from the main text, but is always preceded by an icon and/or a bold title.
WARNING
Provides information or instructions that the reader should follow in order to avoid
personal injury or fatality.
CAUTION
Provides information or instructions that the reader should follow in order to avoid
a service failure or damage to the system.
CHECKPOINT
Provides the operator with checkpoints for stable system operation.
The purpose of the Safety Concerns section is to ensure the safety of users and prevent
property damage. Please read this document carefully for proper use.
Symbols
Caution
Indication of a general caution
Smart MBS RRH-P4A Installation Manual
Restriction
Indication for prohibiting an action for a product
Instruction
Indication for commanding a specifically required action
While cleaning the power supply device, take caution that the device does not
come in contact with alien bodies that may cause power failure.
Caution for installing the power cable
To maintain cable gland’s rain protection performance, 11.81 in. (300 mm) or
more interval should be kept straight. According to the radius of curvature of the
cable specification should be considered.
Caution for cutting the power cable
Cut power cable after installing power cable to RRH-P4A power terminal taking
into account the radius of curvature according to the cable specifications.
When cutting the cable first, the length difference of cable end can be occurred by
cable curvature and the power terminal may cause contact fault.
Caution When Connecting Optical Cables
Before connecting an optical cable, make sure that there is no dust or foreign
substance on the cross-section of the connector core. If there is any dust or
foreign substance, do not remove it by blowing with your mouth. Remove the dust
or foreign substance by referring to the method of cleaning optic connector.
Caution on Rain-proof Gasket Damage When Installing Window Cover
Be careful so as not to let the rain-proof gasket get damaged (broken or
incorrectly positioned). Check whether the rain-proof gasket is damaged before
closing the power window cover and the optic window cover.
IF the rain-proof gasket is damaged, replace the system (RRH-
When installing a feeder line, the radius of curvature of the sections where cables
Connection of Feeder Cable Connector
Connecting the feeder cable connector is critical process, so the qualified workers
Caution When Connecting RET Cable Make sure to turn off the breaker connected to the RRH-P4A power of the DU
If you connect or disconnect the RET cable while the breaker is turned on, it may
bent should be larger than the allowed radius of curvature. If the radius of curvature
for the feeder line installation is less than the allowed radius of curvature, it may
affect the performance of the system.
who finished the related education should perform.
cabinet before connecting the RET cable between the antenna RET port and the
RRH-P4A RET port.
cause an electric short circuit resulting in damage to the RET function.
Installation General
Caution when losing External Power Cable Support Bracket
External Power Cable Support Bracket and two cable tie (stainless steel) for fixing
cable are enclosed in RRH-P4A package. Be careful not to lose when unpacking
package.
Managing unused port
Finish unused port of UADU by dust-cap, not making the alien substance flowed.
Finishing Cable Insertion Hole
Finishing work is required on cable insertion holes (Cable gland, Conduit and
etc.) to prevent entering of any foreign substance, external air and moisture.
- Unused cable insertion hole: Finish cable insertion hole using fishing materials
such as dust cap, rubber packing and etc.
- Cable-installed insertion hole: After installing cable, finish insertion hole using
tape, compressed sponge, rubber packing, silicon, etc. to prevent empty space.
Ensure that all parts of the cable gland are assembled in the correct sequence.
Incorrect assembly may result in influx of external air or moisture into the system
and may cause corrosion, system malfunction and/or critical failure of the cooling
system.
Caution when installing the cable in the cable gland
Only one cable of permitted specification (radius) should be installed in the cable
gland.
- Installing a cable of smaller radius than the permitted specification may result in
influx of external air or moisture into the system and may cause corrosion or
system malfunction.
- Installing a cable thicker than the permitted specification or installing two or
more cables in the gland may damage the gland.
Caution when loosen and tighten the Cable Gland Nut
In case of assembling the cable gland and cabling, do not loosen and tighten by
turning the cable gland body or other parts. turning the cable gland body may
cause corrosion and system failure by entering of any external air and moisture.
Checking assembly state of the unused cable gland
All components of the unused cable gland must be secured in the original factory
configuration. If the cable gland nut is fitted without the rain protection filler or the
protection cover in place, reassemble them as illustrated in ‘Figure 2.7’.
Do not work by yourself
Do not work by yourself in any key process.
Caution for cleaning the Rack
Make sure that worker does not damage installed cables while cleaning the rack.
Cautions When Connecting the CRPI Cable
Failure to observe the CPRI cable connection specified in Table 2.5 may impair
the communication between the CDMA and LTE FDD terminal.
Cable connection standard between UADU CPRI port and RRH-P4A optic port is
Connect the optic cable (Refer to the connection standard of ‘table 2.6’ and ‘table
Caution when Installing the RF antenna
To protect from lightning, the RF antenna must be installed within the shielding
- The protection angle of the lightning rod should be 45 degrees.
different according to the count (One or two) of CDMA UADU (Installed in DU
cabinet).
2.7’). Because false connection can cause the fault of call connection, be
cautious.
angle as shown below, considering the downward distance and the angle from
the tower lightning rod or the antenna pole lightning rod.
Finishing Heat Shrink Tube of a Sector Antenna
1) Insert an antenna protection plate.
2) Place the heat shrink tube on the connection point and shrink the heat shrink
tube using a heat gun.
3) Avoid aiming the heating gun toward the antenna’s body.
California USA Only
This Perchlorate warning applies only to primary CR (Manganese Dioxide)
Lithium coin cells in the product sold or distributed ONLY in California USA
‘Perchlorate Material-special handling may apply, See
www.dtsc.ca.gov/hazardouswaste/perchlorate.’
Purpose ...................................................................................................................................................... I
Document Content and Organization ....................................................................................................... I
Conventions ............................................................................................................................................... II
Revision History ....................................................................................................................................... III
SAFETY CONCERNS V
Symbols ..................................................................................................................................................... V
Warning ..................................................................................................................................................... VI
Caution ..................................................................................................................................................... VII
California USA Only .................................................................................................................................. X
CHAPTER 1. Before Installation 1-1
1.1 System Configuration ............................................................................................................ 1-1
C ~ T .......................................................................................................................................................... I
U ......................................................................................................................................................... II
The moisture content must not exceed 0.024 kg per 1 kg of air.
Altitude
0~6,000 ft (0~1,800 m)
Transportation Vibration
Noise (sound pressure level)
Max. 65 dBA at distance of 5 ft (1.5 m) and height of 3 ft (1.0 m)
(EMC)
US Federal Regulation
FCC Title47 Part27
from the front panel of the RRH-P4A.
Ambient Conditions
This section describes the operating temperature, humidity level and other ambient
conditions and related standard of RRH-P4A.
The following table shows the ambient conditions and related standard of RRH-P4A.
Item Range
Humiditya) 10~95 %
Vibration GR-63-CORE Sec.4.4
Earthquake
Office Vibration
Electromagnetic compatibility
a) Temperature and humidity are measured at 59 in. (1.5 m) above the floor and at 15.8 in. (400 mm) away
When installing a cable that connects between the rectifier, Main Ground Bar (MGB), and
backhaul device, etc. within the system, the cable path length and the cable installation
method, etc. must be inspected.
Follow these guidelines when inspecting the cabling path.
A minimum cable length must be selected provided that it does not affect the cable
installation and maintenance.
The cable must be placed in a location where it will not be damaged by external
factors. (Power line, flooding, footpaths, etc.)
In areas where the cable can be damaged by external factors, ensure that measures are
taken to prevent damages to the cable. (Cable tray, ducts, flexible pipe, etc.)
Cable Cutting
Measure the exact distance, carefully checking the route, and cut the cable using a cutting tool.
Follow these guidelines when cutting the cable.
Cut the cable to the length determined in the Cable Path Inspection step.
Use a dedicated cable cutting tool.
Cut the cable at right angles.
Be careful to keep the cable away from any moisture, iron, lead, dust or other foreign
material when cutting. Remove any foreign material attached to the cable using
solvent and a brush.
Cable Installation
Cable installation involves running the cable along the cabling path to the target connector
of the system or an auxiliary device after cable path inspection and cable cutting have been
completed.
Follow these guidelines when installing a cable.
Be careful not to damage the cable.
If the cable is damaged, cut out the damaged section before installing.
Run the cable so that it is not tangled. In particular, when installing a cable from a
horizontal section to a vertical section, be careful not to reverse the upper and lower
lines of the cable.
Always use the maximum curvature radius possible, and make sure that the minimum
curvature radius specification is complied with.
If the cable needs to be protected, use a PVC channel, spiral sleeve, flexible pipe, and
Connector attachment involves assembling a connector to an installed cable or to a device
on the site.
Follow these guidelines when attaching a connector.
Make sure you are fully aware of the connector assembly method before assembling a
connector. Assemble the connector in accordance with its pin map.
Each connector has a hook to prevent its core positions from being changed.
Use a heat shrink tube at a connector connection for cables that are installed outdoor,
such as feeder lines, to prevent water leakage and corrosion from occurring at the part
exposed to the outside.
Connect each cable of the connector assembly in a straight line.
Be careful when connecting a cable not to trigger contact failure at a connector
connection due to tension.
Identification Tag Attachment
Identification tag attachment involves attaching a marker cable tie, nameplate, and label, etc. to
the both ends of a cable (connections to a connector) to identify its use and cabling path.
Marker Cable Tie
On the marker cable tie, a label can be attached.
The appearance and specification may differ depending
on the type and manufacturer
Follow these guidelines when attaching an identification tag.
When installing a cable outdoor, use relief engraving and coated labels, etc. to prevent
markings from being erased.
Since the form and attachment method for identification tags are different for each
provider, consult with the provider before attaching them.
Connecting Ground Cable
In cabling, the connection of cables without the connection to the ground cable
may cause the damage of the equipment or the bodily injury of the worker.
Connect the ground cable first.
0.75 in., 0.94 in., 1.42 in. (19 mm, 24 mm, 36 mm)
14
Hexagonal wrench bolt
-
15
Hoisting wire
82 ft (25 m)
Steel Cable Ties
1.5 Installation Tool
The basic tools for installation are listed in the table below. The additional tools required
for each site need to be identified and prepared during a site survey before starting
installation.
Table 1.3 Basic Installation Tools
No. Name Specification
1 Torque driver set No.0~ + No.3 (M2.6~M6 ‘+’ Driver)
2 Torque wrench set M6~M12
0.72~2.17 lbf·ft (10~30 kgf.cm),
7.23~36.15 lbf·ft (100~500 kgf.cm)
7
16 Installation Tools for Stainless
DAS-250, ties up to 0.31 in. (7.9 mm) width straps.
Precautions for use of Installation Tools
The required installation tools may vary depending on the conditions at the site.
In addition to the basic tools, a protractor, compass, GPS receiver, ladder, safety
equipment, cleaning tools etc. should also be prepared in consideration of the site
conditions.