UMTS_RNS_I_05_20090530
UMTS
RNS I 05 20090530
NodeB (B8200 RRU) Installation Guide
ZTE University
Content
Overview
B8200 Installation
RRU Installation
Concepts about Distributed Base Station

It is baseband data that is tranmitted between BBU and RRU.
Both intermediate frequency and radio frequency are
processed
d iin RRU
RRU.
 BBU and RRU transmits data through optical fiber, significantly
simplifying project construction.
 Concept of baseband pool. Node B capacity increases.
Iubb
接口
IIubb
接口板
主控和
时钟
室内单元(BBU)
基带处
理单元
数字中频
（对外中频接口
为模拟信号 ）
收发信单元
TRX
…
射频拉远单元 (RRU)
功放
和
低噪放
……
Concepts about Distributed Base Station
Antenna
Pole
Feeder
Optical fiber
Difference between BBU+RRU and General Node B

A distributed base station consists of two separately-developed,
mutually-independent parts. It uses optical fibers instead of
many radio frequency cables to reduce feeders and save costs
significantly. This results in decreased project costs, improved
networking flexibility, and convenient installation.
BBU+RRU - A More Effective Way to Deal with
Equipment Room Shortage
Setup Method
 Use the B8200 + RRU networking mode;
 Place the baseband pool equipment in the 19" rack,
or mount it on the wall in the existing equipment room;
 Lay the antenna feeder plane optical fiber from the
baseband ppool equipment
q p
room to the pplanned 3G site;
Use outdoor RRU at the planned 3G site for coverage.
Advantages
 Full use of the existing equipment rooms, no need for
new ones;
 Strong upgrade capability; low-loss
low loss feeders;
 No need for new transmission networks.
RET
ZXWR series RRUs
ZXWR B8200
It effectively solves the problem of equipment room shortage
shortage.
BBU+RRU Base Station Solves Feeder
Overlength Problem


Signal loss in feeders will result in degraded coverage performance.
The 2G Hz radio frequency signal travels in feeders at a loss of
7dB/100 and
7dB/100m,
d 900M H
Hz 4dB/100
4dB/100m.
 Generally, the feeder length of 3G sites is 50 meters, with a signal
loss of about 4dB.
 RRU makes RF be p
possibly
y closest to the antenna to minimize the
signal loss in feeders.
 By using BBU+RRU, signal loss in feeders can be reduced to less
than 1dB.
RET
Base station ante nn a
7/16’’ female R F conne ctor
1/2’’ super flexi ble j umper
Outdoor groun ding cable cl ip
Feeder cl ip
BT S equip ment room
7/8’’ main feeder cable, w ith 7/16’’
1/2’’ super flexible jum per
Lightning arr ester
fem ale R F connectors at both si des
Outdoor lightning pr ot ec tio n
ZXWR series RRUs
groun ding clip
N
O
D
E
B
F eeder cable w ind ow
Indoor gro unding cabl e c lip
ZXWR B8200
Summary of ZTE BBU+RRU Networking Mode

The BBUB+RRU networking mode saves equipment
room space, reduces signal loss in feeders and
increases signal gain. It also enables easy
centralized management and maintenance and
generally saves 20% construction cost and 20%
operation and maintenance cost.
Network Evolution-Based Soft Base Station
Solution


Benefits to Equipment Suppliers
 It saves development cost and shortens time
to market.
 Full
Full-range
range standard interfaces increases
equipment compatibility.
 It improves equipment quality and stability to
minimize O&M cost.
 The modular design
g enhances equipment
q p
expandability.
 It is helpful to new function development and
new technology application.
Benefits to Operators

A 3G network can be easily set up through software
upgrade, featuring fast speed, high quality and low
cost.

The 2G network and 3G network share the same
physical equipment for easy evolution and less TCO.

Resources are fully shared, so that the 2G network
and 3G network can develop in a balanced manner.

Two networks are in centralized management to save
O&M cost.

It is helpful to new business development and
increases operating earnings.

Full-range standard interfaces enable more flexible
g
networking.
EDGE LTE
EDGE
Phase II
GSM
HSPA
UMTS
HSPA+
GPRS
EDGE
UMA
Initial, HWSW Investment
WiMAX
Evolution, SW Investment
Features and Advantages of SDR Soft Base Station
SDR Base Station - Software Defined Radio Base Station

Single cabinet
Features of SDR base station:

The 2G-3G base stations share cabinets.

The 2G-3G base stations share radio frequency modules.
This is achieved by software configurations.
 New-generation RF modules
and baseband modules
RU RU RU
Software configurations
support 2G or 3G processing.
2G/3G BB
2G BB
3G BB
Module sharing

 Intelligent architecture.
The 2G-3G base stations share baseband modules. This is
achieved by software configurations.

The 2G-3G base stations share network management.

The 2G-3G base stations share antenna feeder systems.
Advantages of SDR Base Station

It solves the capacity balance problem between GSM network and WCDMA network.

It reduces the overall network TCO.

It meets the requirements for future network evolution and spectrum sharing.
Introduction of ZTE Series Soft Base Stations
Indoor type
Outdoor type
Baseband pool
Remote Radio Unit (RRU)
BBUB
B8036
B8136
Technical Characteristics:







BBUC
850M RRU
900M RRU
1800M RRU
1900M RRU
2100M RRU
It fulfills hardware dual-mode functions and soft base station functions at all possible
frequency bands.
GSM and WCDMA share baseband boards.
Each radio frequency
q
y module supports
pp
smooth configuration
g
from six GSM carriers to three
WCDMA carriers.
The transmitting power supports two configurations, 40W and 60W, with a power amplifier
efficiency of up to 40％.
In terms of evolution, it supports hardware compatibility and evolution to LTE.
It can process 36 carrier frequencies under the GSM mode.
It supports up to S444 or S222222 under the WCDMA mode.
SDR Is Suitable for Various Networking Senarios.
Example: 900MHz and 2100MHz applications
Application Type
SDR Base Station Configuration
1
2
3
GSM 900MHz
Configure RU modules to GSM 900MHz RF units.
UMTS 2100MHz
Configure RU modules to UMTS 2100MHz RF units.
UMTS 900MHz
Configure
g
RU modules to UMTS 900MHz RF units.
4
GSM900 + UMTS
2100MHz
5
GSM900 + UMTS
900MHz
Configure partial RU modules to GSM 900MHz RF units.
Configure partial RU modules to UMTS 2100MHz RF units.
Configure RU modules to support GSM and UMTS900MHz RF
units.
SDR base station can help operators operate GSM and WCDMA in one network.
 Traditional
T diti l 2G
2G-3G
3G h
hybrid
b id networking
t ki

SDR b d 2G
SDR-based
2G-3G
3G h
hybrid
b id networking
t ki

Two networks for physical equipment (radio side).

One network for physical equipment.

One network for operation.

One network for operation.

Two networks for operation and maintenance.

One network for operation and maintenance.
Typical Applications of BBU+RRU
Content
Overview
B8200 Installation
RRU Installation
B8200 Installation



B8200 Installation Modes
B8200 Cable Types
B8200 Cabling Modes
B8200 Installation


B8200 (3G) supports two installation modes: indoor and
outdoor.
B8200 Dimensions and Appearance
Equipment
Dimensions (W×D×H)
Weight
Power Consumption
B8200
482.6mm×197mm×88.4mm
8.5kg
340W
Fiber Switch Board
(FS)
GSM baseband board
(UBPG) / WCDMA
baseband board ((BPC))
Power module
(PM)
Fan module
(FAN)
Environment
alarm board
(SA)
Control and Switch
Board (CC)
B8200 Installation

B8200 Board Introduction:
Abbreviation
Explanation
Description
PM
Power Module
The power module provides power supply for boards. One power
module is configured by default. A 1+1 backup is optional.
SA
Site Alarm
Module
This board integrates environment monitoring and E1 interface
functions and provides six input and two output channels of dry
contact monitoring. It also provides eight E1/T1 interfaces.
Control and
Clock Module
It switches media flow and control flow, processes clock signals,
and manages subracks. The panel provides GE interfaces (optical
and electrical optional) for transmission at the Iub interface. It
also provides a GPS antenna interface.
interface One CC is configured by
default. A 1+1 backup is optional.
FSM
Fabric Switch
Module
This board mainly switches IQ signals. Each board supports six
fiber interfaces for the connection with RU modules. Depending
on the number of the fiber interfaces required, at most two
b
boards
d can be
b configured.
fi
d
BPC
Baseband
Processing
Board, Type C
GSM and WCDMA use different baseband boards (uBPC or BPC).
One uBPC supports 12 TRXs.
FAN Module
Located at one side of the subrack,
subrack this board is used for heat
dissipation.
CC
FA
B8200 Installation Modes






Indoor Installation
Installation on 19-inch floorstanding mounting
support
Installation on 19-inch 7U wall mounting support
On-wall installation
Outdoor Installation
Working with W121 M01 integrated power cabinet
Indoor Installation (I)




Install the B8200(3G)on a 19-inch floorstanding mounting support,which should be no less than 400 mm
away from the front row of equipment. The post of the mounting support (front) should be no less than
350 mm away from the rear wall or the behind row of racks. The distance between any side of the
mounting support and the walls or other racks should be no less than 100 mm.
Install the B8200(3G) at a height of one meter, with a space of 2U left between SWITCH and B8200(3G),
and 1U between other equipment. See the installation layout for details.
A pallet is a must when intalling the B8200(3G). The installation of the pallet is shown in the figure below.
The dimensions of the floorstanding mounting support are 520 mm×385 mm×1600 mm (L×D×H).
7
6
5
4
3
2
1
No.
Bottom rung
Flat washer (M12)
Hex bolt (M12 × 25)
Flat washer (M10)
Hex bolt (M10 × 20)
Support
Top rung
Name
2
8
8
4
4
2
2
Quantity
Remarks
Indoor Installation (II)




Note: A space of at least 400 mm
should be reserved for maintenance
in front of the equipment. Any side of
the cabinet should be no less than
100 mm away ffrom th
the walls.
ll
The dimensions of the 19-inch 7U wall mounting support are 500 mm×360 mm×360 mm
(W×D×H), with a weight of about 6 kg.
When two B8200s(2G) are required
required, install them according to the installation layout 1
1.
When one B8200(2G) is required, install it according to the installation layout 2.
Indoor Installation (III)

If the wall is too thin (or made of sand or wood) to provide
enough bearing capacity, it is recommended to make a support
or fix
fi a wooden
d plate
l t tto th
the wallll on site,
it as shown
h
in
i the
th fi
figure
below.
Indoor Installation (IV)

Wall mounting may be considered if possible
possible, as shown in
the figure below.
Outdoor Installation

Outdoor Installation of B8200(3G) - W121 M01(7U)
Model
7U Space Allocation
Outdoor Installation





Use W121 M01.
Install the B8200(3G) in the W121. See W121 space allocation for details.
There is a space of 7U/9U in the W121. Check to see if the ventilation plate on
th right
the
i ht side
id iis removed
db
before
f
iinstalling
t lli th
the B8200(3G)
B8200(3G). If nott ((as shown
h
iin
the figure below), do not install the B8200(3G) and other equipment until
removing the ventilation plate. It is required to put the removed ventilation plate
and the blank panel in the empty battery box below.
The W121 does not support
pp back-to-wall installation. A space
p
of more than 500
mm should be reserved in the behind for the convenience of input/output
power cable maintenance, and 500 mm on the left and right for the external air
conduits of the heat exchanger. The distance between two W121s should be
larger than 500 mm.
Solve any floor bearing capacity-related
capacity related problem according to the structure
analysis report.
Right-side vents of the 7U space
B8200 Cable Types









DC power cable
Outdoor optical fiber
SA panel cable
Dryy contact alarm cable
Power supply monitoring cable
E1 cable
Ethernet cable
GPS feeder
Grounding Cable
B8200 Cable Types

1. DC Power Cable

Application: It is used to connect the
external -48VDC power supply into the
equipment.
 Use it to connect the power supply
equipment to the power module FM of
the B8200(3G).
 Connect B1 to the protective grounding
terminal of the B8200(3G). Connect B2
and B3 to the DC power cabinet.
 The power cable connections are
shown in the table below:
B2
－48 V GND
Voltage:
g 0 V DC Max. power: 300 W
A1
Brown conductor
B3
－48 V
Voltage: －48 V DC Max. power: 300 W
A2
Blue conductor
B8200 Cable Types

2. Outdoor Optical Fiber

The outdoor optical fiber is used to connect B8200(3G) and RRU and transmit the
data between B8200(3G) and RRU.
RRU
End A of the optical fiber is a wateroroof optical interface that connects with RRU;
end B is an LC optical interface that connects with the optical interface of the FS
panel. From right to left, the FS panel provides optical interfaces including No. 0, 1,
2 3
2,
3, 4
4, and
dN
No. 5
5. Th
The RRU off S1 connects
t with
ith No.
N 0 optical
ti l interface;
i t f
the
th RRU
of S2 connects with No. 1 optical interface; and so on.


The anti-pull wire fastener of the optical fiber must be cut from the root, as
shown in the figure below.
B8200 Cable Types


3. SA Panel Cable
End A of the cable is an SCSI50 plug that connects with the
corresponding port on the SA panel. End B1 is a DB44 plug (connecting
with E1/T1), end B2 being RS232 connector (DB9), end B3 being dry
contact connector (DB25), and end B4 being grounding end.
B8200 Cable Types

4. Dry Contact Alarm Cable
DB25 Pin Definition
Number of Dry Contacts
Cable Color
DB25_1
NODEB_IN1P
White
DB25_14
NODEB_IN1N
Blue
DB25_2
NODEB_IN2P
White
DB25_15
NODEB_IN2N
Orange
DB25_3
NODEB_IN3P
White
DB25_16
NODEB_IN3N
Green
DB25_4
NODEB_IN4P
White
DB25_17
NODEB_IN4N
Brown
DB25_5
NODEB_IN5P
Red
DB25_18
NODEB_IN5N
Blue
DB25_6
NODEB_IN6P
Red
DB25_19
NODEB_IN6N
Orange
DB25_7
NODEB_IN7P
Red
DB25_20
NODEB_IN7N
Green
DB25 8
DB25_8
NODEB IN8P
NODEB_IN8P
Red
DB25_21
NODEB_IN8N
Brown
B8200 Cable Types

4. Dry Contact Alarm Cable

When the B8200(3G) monitors one indoor lightning protection box:
Only the first four pairs of cables are used as input dry contact cables,
as shown in the figure below.
White Blue
White Orange White Green
White Brown
B8200 Cable Types

4. Dry Contact Alarm Cable

When the B8200(3G) monitors two indoor lightning protection boxes:
The left three ways of input dry contact cables connect with the first
lightning ptotection box, and the right three ways connect with the
second,
d as shown
h
iin th
the fifigure b
below.
l
Short
Circuit
Short
circuit
White Blue White
Orange White Green
White Brown
Red
Blue Red Orange
B8200 Cable Types

5. Power Supply Monitoring Cable

One end DB9 ((M)) of the B8200(3G)
( ) RS232 power
p
supply
pp y monitoring
g cable connects
with the B2 (DB9) part of the SA panel cable; the other end DB9 (F) connects with the
port 232 of the DC power cabinet (H151 or H900 or T601). The power supply monitoring
cable is shown in the figure below.
Cable specifications: 1m
1m, 2m
2m, 5m
5m, 8m
8m, 10m
10m, and 15m
15m.


For uncustomized RS232 cables,, it is required
q
to make the DB9 (F)
( ) on site
according to the following cable sequence.
DB9 (Female)
Color of End B2 Cables
DB9_2
Blue
DB9_3
Orange
DB9_5
Weld both white cables together.
B8200 Cable Types

Installation of Power Supply Monitoring Cable in
W121(7U)
( )
Front Panel Wiring
R Panel
Rear
P l Wiring
Wi i
B8200 Cable Types

6. E1 Cable

If the 120-ohm E1 transmission mode is used at the site, connect the DB44
connector at end A of the 120
120-ohm
ohm E1 cable to the B1 jack of the SA panel cable.
cable
For end B, make a DB15 connector on site according to the following cable
sequence and connect it to HDSL.
Note: Both the seventh and the eighth pairs of E1 cables should be left
unconnected
t d ffor acting
ti as th
the DB9 connector
t th
thatt receives
i
clock
l k signals
i
l ffrom NSN
and providing clock signals to the B8200(2G) respectively.

Signal Definition
I_RING_
0
TIP_0
O_RING
_0
TIP_0
I_RING_
1
TIP_1
O_RING
_1
TIP_1
I_RING_
2
TIP_2
O_RING
_2
TIP_2
I_RING_
3
TIP_3
O_RING
_3
TIP_3
Pin No. (End A)
22
23
24
25
1
2
3
4
5
6
7
8
9
10
11
12
Cable No.
Blue/1
red
Blue/1
black
Pink/ 1
red
Pink/1
black
Green/ 1
red
Green/1
black
Yellow/1
red
Yellow/1
black
Grey/1
red
Grey/1
black
Blue/2
red
Blue/2
black
Pink/2
red
Pink/2
black
Green/2
red
Green/2
black
Signal Definition
I_RING_
4
TIP_4
O_RING
_4
TIP_4
I_RING_
5
TIP_5
O_RING
_5
TIP_5
I_RING_
6
TIP_6
O_RING
_6
TIP_6
I_RING_
7
TIP_7
O_RING
_7
TIP_7
Pin No. (End A)
13
14
43
44
39
40
41
42
35
36
37
38
31
32
33
34
Cable No.
Yellow/2
red
Yellow/2
black
Grey/2
red
Grey/2
black
Blue/3
red
Blue/3
black
Pink/3
red
Pink/3
black
Green/3
red
Green/3
black
Yellow/3
red
Yellow/3
black
Grey/3
red
Grey/3
black
Blue/4
red
Blue/4
black
1 (IN0)
Blue/1
red
2 (OUT0)
Blue/1
black
Pink/1
red
Pink/1
black
3 (IN1)
Green/1
red
Green/1 black
Cable Pair Sequence
(End B)
9 (IN4)
Yellow/2
red
Yellow/2
black
10 (OUT4)
Grey/2
red
Grey/2
black
4 (OUT1)
Yell
ow/
1
red
11 (IN5)
Blue/3
red
Blue/3 black
Yellow/1
black
12 (OUT5)
Pin
k/3
red
Pink/3
black
5 (IN2)
Grey/1
red
6 (OUT2)
Grey/1
black
13 (IN6)
Green/3
red
Green/3
black
Blue/2
red
Blue/2
black
14 (OUT6)
Yellow/3
red
Note: Blue/1 red means there is one red spot on the blue cable; and so on.
Blue/1 red means there is one red spot on the blue cable; and so on.
Yellow/3
black
7 (IN3)
8 (OUT3)
Pink/2
red
Pink/2
black
15 (IN7)
Grey/3
red
Grey/3
black
Green/2
red
Green/2
black
16 (OUT7)
Blue/4
red
Blue/4
black
B8200 Cable Types

7. Ethernet Cable

The switch must be installed at all sites.
The Ethernet cables of the B8200(3G) are connected from the ETHO of the CC
board to the corresponding ports of the switch, which then connects to the optical
MODEM through Ethernet cable.
Generally, customized 1.8 m network cables are used as Ethernet cables. If the
required length exceeds 1.8m, the cable should be made on site.
The Ethernet cable is straight through, with the cable sequence (568B) in the
RJ45 connectors at both ends being the same.



End A
Cable Color
End B
1
White orange
1
2
Orange
2
3
White green
3
4
Blue
4
5
White blue
5
6
Green
6
7
White brown
7
8
Brown
8
B8200 Cable Types

8. GPS Feeder

The GPS feeder is used to guide signals from
GPS antenna into BBUB.
 The appearance is shown in the figure below.
The connector (male) at end B (BBUB side) is
SMA coaxial cable; while the connector (female)
at end A is N coaxial cable.
B8200 Cable Types

9. Grounding Cable

Connect the grounding cables of both power cables and SA
cables to the grounding terminal on the B8200(3G), and then
connect the grounding terminal to the indoor equipment
grounding bar through a 16mm2 yellow-green grounding cable.
B8200 Cable Types

Grounding Requirements in W121
Power connecting
point
Grounding point
Grounding point in power
cabinet

Connect the grounding cables of both
power cables and SA cables to the
grounding terminal on the B8200(3G),
and then connect the grounding
terminal to the grounding point at the
bottom left of the W121 power cabinet
through a 16mm2 yellow-green
grounding cable.

Such equipment as B8200(3G),
switch, and microwave device must
be all jointly connected to the
grounding point in the power cabinet.
Do not guide these equipment
grounding cables to the outdoor
grounding bar.
Content
Overview
B8200 Installation
RRU Installation



RRU Installation Modes
RRU Cable Types
RRU Cabling Modes
RRU Installation





RRU supports two installation modes: outdoor and indoor.
In the outdoor mode, the distance between RRU and antenna should
be less than 5m if the RRU has only one antenna
antenna, or 20m if the RRU
has more than one antenna, or should meet the design rquirements.
In the indoor mode, the distance between RRU and antenna should
be less than 20m or shoule meet the design requirements.
Install only one UMTS 2100M R8840 for each set of RRU in the first
phase, and one 900M R8860 and one to four 1800M R8860s in the
second phase.
RRU Dimensions:
Equipment
Dimensions (W×D×H)
Weight
Power Consumption
R8840
320
320mm×160mm×370mm
×160
×370
16 5k
16.5kg
240W
R8860
320mm×172mm×500mm
22.5kg
390W
Note: The RRU must be placed vertically with its ports facing downwards
downwards. Never place it
horizontally.
Outdoor Installation of RRU








When installing the RRU on an outdoor antenna feeder plane, there are
several mounting modes as follows:
Wall-mounting (preferred);
Pole-mounting or L type-mounting;
Flexible mounting according to the on-site conditions.
Consider full configurations for each set of RRU:
Six RRUs + three or six outdoor lightning protection boxes (one lightning
protection box supports two RRUs) + two combiners + two 3dB bridges
Where, the combiners and bridges are used at the shared stage of the existing
network. After cutover, the combiners should be removed. Whether the bridges
should be removed or not depends on the practical situations.
Dimensions of Pole and Lightning Protection Box
Equipment
Dimensions (W×D×H)
Weight
Indoor Lightning Protection Box
450mm×99mm×400mm
8kg
Outdoor Lightning Protection Box
238mm×106mm×305mm
3kg
RRU Pole
600mm×600mm×2000mm
62kg
Outdoor Installation of RRU

Outdoor Installation of RRU - Wall-Mounting Mode
 Full configurations
g
of each RRU: six RRUs + three or six
outdoor lightning protection boxes. Mount all these nine pieces
of equipment on the wall individually. Only one R8840 is
installed in the first phase of installation, so a dummy box is
required to take a position for an RRU that will be installed in
the second phase, at the end of which there will be six true and
dummy RRUs.
 Installation requirements: A space of 250mm high is required
above the RRU for heat dissipation. There should be no object
that affects normal outlets or connections in the 250mm
i t ll ti space under
installation
d th
the RRU
RRU.
 When mounting RRU and outdoor lightning protection box on
the wall, do not use the included expansion bolts. Buy and use
HILTI stainless
t i l
steel
t l bolts
b lt iinstead.
t d
Outdoor Installation of RRU


Outdoor Installation of RRU - Wall-Mounting Mode
The figures below show the wall-mounted RRUs of
the minimum installation dimensions. The layout
may be adjusted according to the wall conditions at
each
h site.
it
Outdoor Installation of RRU


Outdoor Installation of RRU - Wall-Mounting Mode
Installation Diagram:
Outdoor Installation of RRU






Outdoor Installation of RRU - Pole-Mounting Mode
Installation Dimensions:
First p
phase: The height
g from the top
p of the R8840 to
the bottom of the support is 790mm. The height from
the top of the outdoor lightning protection box to the
bottom of the support is 870mm.
In the outdoor pole-mounting mode, enough space
should be reserved for operation and maintenance
according to the following requirements:
There must be a space of more than 1 m (from the
center of the pole) at two or more sides.
The distance between the pole center and the
wall/equipment must be larger than 600mm if the pole
is close to the wall or other equipment.
Outdoor Installation of RRU






Outdoor Installation of RRU - Pole-Mounting Mode
Installation of Concrete Pier under RRU Support:
pp
The construction workers should pour the concrete pier
according to the practical on-site situations. Consider the
bearing
g capacity
p
y of the floor when p
positioning
g the concrete p
pier
based on the structure design drawings.
Dimensions of concrete pier: 800mm×800mm×150mm The
grade of the p
g
precast concrete p
pier is C20, with a cement/mortar
ratio of 1:3.
Try to keep a flat upper surface and avoid destroying the
waterproof
p
layer
y of the roof when p
pouring
g the concret p
pier.
Make holes on the concret pier after it completely solidifies.
M20 expansion bolts must be used to secure the pole.
Outdoor Installation of RRU

Outdoor Installation of RRU - Pole-Mounting Mode
 Scene Simulation of First Phase

Install the R8840 at the bottom layer during the first phase. It can only be positioned
on the end face of the disc-shaped component (The concave surface of the
component must face downwards.). Do not make it straddle two disc-shaped
components. Install the outdoor lightning protection box on the R8840, with both
f i th
facing
the same di
direction,
ti
as shown
h
iin th
the fifigures above.
b
M
Mountt M8 b
bolts
lt iinto
t th
the
positioning holes of the pole before installation. Use these bolts to position the discshaped component.
Outdoor Installation of RRU


Outdoor Installation of RRU - Pole-Mounting Mode
Scene Simulation of Second Phase
Install two 1800M R8860s, one 900M R8860, and one outdoor lightning protection box
during the second phase. Position these three R8860s at the bottom layer, with the two
1800M R8860s being adjacent. Install the outdoor lightning protection box opposite to
the one installed in the first phase.
Outdoor Installation of RRU


Outdoor Installation of RRU - Pole-Mounting Mode
Scene Simulation of Third Phase
Introduce the MIMO technology into the third phase. Install one 2100M R8840, one 900M R8860, and one outdoor
lightning protection box. Install the outdoor lightning protection box at the top layer, facing the same direction
as the one installed in the first phase. Install the two RRUs symmetrically at the same layer, as shown in the
fi
figures
above.
b
The
Th outdoor
td
lightning
li ht i
protection
t ti
box
b can only
l be
b positioned
iti
d on the
th end
d face
f
off the
th disc-shaped
di
h
d
component (The concave surface of the component must face downwards.). Do not make it straddle two discshaped components.
Outdoor Installation of RRU

Outdoor Installation of RRU - L-Type Mounting Mode
 Installation Example:

Installation requirements: There should be no object that affects normal
outlets or connections in the 250mm installation space under the RRU.
Indoor Installation of RRU

When installing the RRU indoors, configure six RRUs, one DC power
distribution box (one DC power distribution box supports six RRUs),
and one combiner/bridge
g for each set.
 Indoor or outdoor lightning protection boxes are not required. Each
RRU set needs one DC power distribution box MCB (One DC power
distribution box supports six RRUs. The rated current of the MCB
switch should be higher than 16A). Use 25mm2 blue black power
cables
bl tto connectt th
the DC power distribution
di t ib ti cabinet
bi t with
ith each
h DC
power distribution box. Install a grounding bar besides each RRU set.
If two RRU sets are close to each other (less than 3m), they can share
a grounding bar. Connect the protective ground of the MCB to the
RRU grounding bar by using 16mm2 yellow green grounding cables
cables.


Generally, there are two modes to install the RRU indoors:
Wall mounting is preferred. If the wall is too thin (or made of sand or
wood) to provide enough bearing capacity
capacity, it is recommended to make
a back-to-wall support on site. Refer to the wall-mounting BBUB
above.
 If wall mounting is impossible, it is also acceptable to use a
floorstanding mounting support that can bear four RRUs
RRUs. Mount the
MCB on the nearest wall.
Indoor Installation of RRU

Indoor Installation of RRU - Wall-Mounting Mode
 The figures below show the wall-mounted RRUs of the minimum
installation dimensions
dimensions. The layout may be adjusted according to the
wall conditions at each site.
 A space of 250mm high is required above the RRU for heat
dissipation. There should be no object that affects normal outlets or
connections in the 250mm installation space under the RRU.
Indoor Installation of RRU

Indoor Installation of RRU - Floorstanding Mounting Support
(Portal Rack)
 The dimensions of the floorstanding mounting support that
bears four RRUs are 450mm×600mm×1600mm (W×D×H).
 Note: if it is impossible
p
to mount expansion
p
bolts into the indoor
floor, construction workers should take suitable actions to
secure the installation.
R8840
R8860
Indoor Installation of RRU


Indoor Installation of RRU - Floorstanding Mounting
Support (Portal Rack)
Installation Dimensions
R8840
R8860
Portal Rack Installation





Portal rack positioning: The front
edge of the base should be flush
with that of the existing devices in
the equipment room,
room with a
distance of 10cm away from
adjacent devices on both sides.
Install the base by using different
modes that are suitable for the
equipment
i
t room conditions.
diti
U
Use
tapping screws when installing it
in a shelter or expansion screws
in a normal equipment room.
For the convenience of cabling,
g, it
is not recommended to mount the
cover-like component at the top of
the portal rack.
It is required to drill holes at the
lower (rear side) part of the portal
rack pillar for the installation of
grounding bar. Such holes should
be 13cm away from the base, and
the lower edge of the grounding
bar should be 10cm from the
base.
See the figure on the right.
Mount the grounding bar
on the inner side of the
portal rack pillar.
The lower edge of the
grounding bar should be
10 cm away from the
base.
The holes should be 13
cm away from the base.
10 cm
The front edge of the base
should be flush with that of
the existing devices.
Installation of Universal R8840 Mounting Parts

Universal wall-mounting parts are indispensable for R8840
installation in both wall-mounting and support-mounting modes.
 Insulating bed plates and insulating rubber rings must be used
in assembly for the installation of universal wall-mounting parts.
 Installation Steps
p
 For portal rack-mounting mode: Bolt - insulating rubber ring universal wall-mounting part - insulating bed plate - portal rack
- flat washer - spring
p g washer - nut.
For wall-mounting mode: Nut - flat washer - spring washer insulating rubber ring - universal wall-mounting part - insulating
bed plate - expansion screw - wall.
R8840 Installation


Install the R8840 on the portal
rack. Keep an eye on the
positions of the wall-mounting
holes, which are the No. 1, 3,
11 and 13 holes from top to
11,
bottom of the portal rack.
Install Cell-A and Cell-B in the
front of the portal rack, and
Cell-C and Cell-D in the back.
RRU Cable Types





DC power cable
Outdoor optical fiber
½" jumper
RRU alarm cable
Grounding cable
R8840 Interfaces
RRU Cable Types



1. DC Power Cable
Currently ZTE delivers many models of DC power
Currently,
cabinets (such as H900, H151, T601, and W121)
that are configured with two types of switches: 63A
and
d 32A
32A. It is
i recommended
d d to
t connectt each
h RRU
set to a 63A switch and connect the B8200 (3G) to a
32A switch during
g the first-phase
p
installation.
If an old DC power supply equipment is used, it is
recommended to connect each RRU set to a 63A
switch and connect the B8200(3G) to a 32A switch
switch,
If the old switch does not meet specifications,
replace it with a qualified one.
RRU Cable Types
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Outdoor Cabling Requirements
The selection of outdoor cables between indoor lightning protection box (one supports three
RRUs) and outdoor lightning protection box (one supports two RRUs) should follow the
principles below.
If the cable length is less than 50m
50m, use 6mm2 dedicated two-core
two core cables
cables.
If the cable length is between 50m and 145m, use 16mm2 dedicated two-core cables. If the
cable length is between 50m and 80m, it is also acceptable to use 10mm2 dedicated two-core
cables.
If the cable length is between 145m and 290m, use 16mm2 dedicated two-core cables, but in
this case, one outdoor lightning protection box only powers one RRU separately.
Configure outdoor lightning protection boxes and outdoor cables as follows after completing
the installation of each RRU set.
If the outdoor cable length is less than 145m, the 2100M RRU and the 900M RRU should
share one outdoor lightning protection box, and two to four 1800M RRUs should share one or
two outdoor lightning protection box. In this case, each RRU set requires three outdoor cables.
If the site is designed to accomodate UMTS equipment only, each RRU set requires only one
outdoor
td
cable.
bl
If the outdoor cable length is between 145m and 290m, each outdoor lightning protection box
can only support one RRU. In this case, each RRU set requires six outdoor cables. If the site
is designed to accomodate UMTS equipment only, each RRU set requires only two outdoor
cables.
If the cable length
g between the indoor lightning
g
gp
protection box and the outdoor lightning
g
g
protection box is more than 290m, it is recommended to position the RRU as close as
possible to the B8200 during project survey, and make sure the cabling route is less than
290m. If it is impossible to meet such requirements, give up the site and find a new one.
It is required to finish laying outdoor cables once and for all in the first-phase installation. Lay
three or six outdoor cables for each RRU set. A surplus cable length of 3-5m should be
reserved at the indoor B8200 side for the installation of the indoor lightning protection box
during the second phase. The pre-laid cables at the RRU side should also provide a surplus
length, and waterproof treatment should be made.
RRU Cable Types



Cabling Requirements in Outdoor Lightning Protection Box
The inlet/outlet cables of the outdoor lightning protection box must be sealed
by passing through the sealing ring of the box for good leakproofness. If the 16
mm2 outdoor cables cannot pass through the sealing ring
ring, remove itit, and then
lay the cables.
Make sure the cable sequence is correct during the installation of the outdoor
lightning protection box, as shown in the figures below.Note: The power cable
that connects with the 2100M RRU must pass through the middle cabling hole.
The end of the unused cabling hole must be sealed by winding two rounds of
PVC insulating tape on it.
Correct Installation
Wrong Installation
RRU Cable Types

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
2. Outdoor Optical Fiber
Configure optical fibers as follows after completing the installation of each RRU set.
UMTS 2100M: 1 piece
UMTS/GSM 900M:
900M 1 piece
i
GSM 1800M: 1 or 2 pieces
Standby optical fiber: 1 piece
Generally, lay five optical fibers for each RRU set.
It is required to finish laying outdoor optical fibers once and for all in the first-phase
first phase
installation. Lay five outdoor optical fibers for each RRU set. Coil up the surplus length of
optical fibers and place them at the RRU side. A surplus optical fiber length of 3-5m should
be reserved at the B8200 side for the installation of the B8200 during the second phase.
Waterproof treatment should be made to the pre-laid optical fibers.
If the site is designed to accomodate UMTS equipment only, each RRU set requires only
three outdoor optical fibers.
fibers
Each optical fiber must be tested by using optical multimeter before and after laying. Fill
the detailed test results accurately into the Outdoor Fiber Test Record. Use optical
multimeter to test the loop-back loss of the optical fibers. The optical fibers are in good
condition if the loop-back loss is less than 1dB; otherwise, find out the reason or lay the
optical fibers again.
Do not lay the outdoor optical fibers at the places where they will possibly be trampled
frequently. Otherwise, mount rigid PVC troughs or trough covers to protect the optical
fibers.
Both ends of the connectors of any pre-laid or unused outdoor optical fiber must be
q pp with p
protective caps.
p Never touch any
y optical
p
fiber connector with bare hand.
equipped
Waterproof treatment must be made to the outdoor connectors.
RRU Cable Types


3. ½" Jumper
The ½"
½ jumper (left) and the 7/8"
7/8 jumper (right) are
shown below.
RRU Cable Types

4. RRU Alarm Cable
RRU Cable Types



Alarm Cable Connections between RRU and Outdoor Lightning Protection Box
Connect the alarm cable of the RRU to the outdoor lightning protection box by using
the white brown/brown wires at the dry contact 1, as shown in the figure below.
Note: Strip off the alarm cable sheath until the wires show their colors (white
brown/brown).
RRU Cable Types




5. Grounding Requirements of Outdoor Cables
Both ends of each outdoor cable are grounded through the shielding layer of the cable fixed by a metal
fastener in the indoor/outdoor lightning protection box. Protective grounding is made to the lightning
protection box through grounding cables
cables, and the mental fastener connects with the grounding of the
lightning protection box, so no grounding cable is required at both ends of the outdoor cable. The 16mm2
cable cannot pass through the cabling hole on the outdoor lightning protection box until the cable sheath
is stripped off. The cable clip in the outdoor lightning protection box can be used to clamp 16mm2
shielding cables.
If there is no lightning strip on the roof, it is acceptable to ground the outdoor cable at both sides. No
grounding is required in the middle
middle, as shown in the figure below
below.
If there is a lightning strip on the roof, ground the outdoor cable at both sides when the cable length is
less than 30m. If the outdoor cable length is more than 30m on the roof, ground it once per 20m.