Massive MIMO AAU5310
Installation
AAU5310 Equipment Specifications
AAU5310
Dimensions (H x W x D)
699 mm x 395 mm x 130 mm
Weight (kg)
20
Frequency band (MHz)
3400 MHz to 3600 MHz
Output power (W)
100 W
Heat dissipation
Natural cooling
Ingress Protection Rating
IP65
Working temperature (°)
–40°C to +55°C (without solar radiation)
Relative humidity
5% RH to 100% RH
Front: 415
Wind load@150 km/h (N)
Side: 100
Rear: 425
Front
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Rear
Maximum operational wind speed
(km/h)
200
Survival wind speed (km/h)
240
Carrier configuration
Single-carrier: 100/80 MHz
Typical power consumption (W)
650 W (maximum power consumption of 705 W)
Working voltage
–36 V DC to –57 V DC
Ports on the BBU
eCPRI port, data rate of 10.3125 Gbit/s or 25.78125 Gbit/s
Installation mode
Pole-mounted or wall-mounted (on a pole) installation, supporting
±20 degrees continuous mechanical tilt angle adjustment
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AAU5310 Antenna Technical Specifications
Frequency Band
3400 MHz to 3600 MHz
Polarization
+45° and –45°
Gain
23 dBi
Horizontal Scanning Range of Beams
–60° to +60°
Vertical Scanning Range of Beams
–15° to +15°
Horizontal 3 dB Beamwidth
12.3°
Vertical 3 dB Beamwidth
6.5°
Antenna Array
4(H) x 12(V) x 2
Front-to-Rear Ratio
30
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4 columns
Vertical: 3 lines
as an array
12 lines
Diagram of antenna arrays
4 (H) x 12 (V) x 2, vertical: three lines as an
array and horizontal: one column as one array
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 AAU5310 Installation
 Installation Scenarios
 Mounting Kits and Installation Clearance Requirements
 Optical Module Installation
 PGND and Power Cable Preparation
 Installation Process
 Surge Protection
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Installation Scenarios
Installation
Position
Polemounted Requirement
Installation
Installation Scenario
Installation
Position
Polemounted Requirement
Installation
A pole base
is required.
Wall
The AAU for
a sector is
installed in
separate
mode.
The AAU is
installed on
a wall.
An auxiliary
pole is
required for
installing the
AAU.
The AAU is
installed on
a tower.
A pole is
required for
installing the
AAU.
A parapet is
required for
installing a
pole.
Rooftop
pole
AAUs for
multiple
sectors are
installed in
centralized
mode.
Tower
Auxiliary pole
are required
for installing
the AAUs.
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Installation Scenario
Mounting Kits and Installation Clearance Requirements
2. AAU5310 installation clearance requirements
1. AAU5310 mounting kits
Mounting kits for the vertical installation on a pole and
angle adjustment (delivered by default)
No.
Component
Quantity
The clearance for AAS horizontal installation shall be at least more than or equal to 300
mm. The lifting point shall be 300 mm higher than the antenna installation position.
Considering the cabling requirements at the bottom of the antenna, the installation
clearance at the bottom of the AAU must be more than or equal to 500 mm.
The following figure shows AAU5310 installation clearance requirements.
Description
a
M12x200 bolt
4
Used to connect the main and auxiliary
brackets.
b
Auxiliary bracket
2
Assembled with an AAU upper or lower
main bracket.
c
Upper main
bracket
1
Secured to the upper handle of an AAU.
d
Lower main
bracket
1
Secured to the lower handle of an AAU.
e
Downtilt supporting
1
arm
Used to adjust the mechanical downtilt.
When a single AAU is installed on a pole, the adaptive pole diameter is 50 mm to 114 mm. If the pole diameter exceeds
the adaptive range, add auxiliary poles or raise requirements on using large pole mounting kits.
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Installation Process
The following figure
shows the AAU
installation process.
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Optical Module Installation
1. Install optical modules in the AAU maintenance cavity
before lifting an AAU.
2. Insert an optical module into the CPRI0 port on the AAU
and another optical module into the CPRI port on the
BBU. Ensure that the optical modules are inserted in the
correct direction. Gently push them into the slots
horizontally, until they are in close contact with the slots
and the connectors are completely inserted. The
connectors are properly fastened.
3. When the optical connector is securely connected, you
will hear a click.
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PGND and Power Cable Preparation
Preparing a PGND Cable and a Power Cable
This section describes how to prepare PGND and
power cables for the AAU.
Cable Type
Section
PGND cable
1.15.2 Assembling the OT Terminal and
the Power Cable
Power cable
1.15.4 Adding a Female Fast
Connector (Pressfit Type) to the AAU
Power Cable on the AAU Side
Preparing a Power Cable
2. Strip the sheath off each core wire.
1. Determine the length of each cable
segment based on the cable
diagram inside the cabling cavity.
Preparing a PGND Cable
1. Crimp the joint parts of the
bare crimping terminal and
the conductor (OT terminal).
2. Heat the heat shrink
tubing (OT terminal).
3. Attach a cable-tying label.
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4. Strip the sheath off the power cable.
3. Add a female fast connector (pressfit
type) to two core wires.
The core wires should be exposed out of the female
fast connector (pressfit type), but the insulated
segments in the outer layer of the power cable
cannot be pressed by the connector. The core wires
should not be exposed too long or reversely folded
and exposed, as shown in the figure.
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Installation Introduction—Assembling Downtilt
Supporting Arm and Mounting Kits Under the Tower
Procedure
Scenario 1: Install the downtilt supporting arm onto the upper handle of the AAU.
1. Remove the M10 bolts from the upper handle of the AAU, as shown by illustration a in
figure 1.
2. Place the long arm of the downtilt supporting arm on the AAU handle, and align the
holes on the long arm with those on the handle, as shown by illustration b in figure 1.
3. Place M10 bolts into the holes, and use a torque wrench to tighten the bolts to 40 N·m,
as shown by illustration c in figure 1.
4. Install the lower main bracket. Remove the M10 bolts from the lower handle of the AAU,
as shown by illustration a in figure 2.
5. Place the lower main bracket onto the lower handle of the AAU, and ensure that the
handle aligns with the slots on the lower main bracket. Then, install the bolts on the
lower main bracket, and tighten the bolts to 40 N·m, as shown by illustrations b and c in
figure 2.
Figure 1 Installing a downtilt
supporting arm onto the upper handle
Figure 2 Installing the lower main
bracket onto the AAU
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Scenario 2: Install the downtilt supporting arm onto the lower handle of the AAU.
1. Remove the M10 bolts from the lower handle of the AAU, as shown by illustration a in figure
3.
2. Place the long arm of the downtilt supporting arm on the AAU handle, and align the holes on
the long arm with those on the handle, as shown by illustration b in figure 3.
3. Place M10 bolts into the holes, and use a torque wrench to tighten the bolts to 40 N·m, as
shown by illustration c in figure 3.
4. Install the lower main bracket. Remove the M10 bolts from the upper handle of the AAU, as
shown by illustration a in figure 4.
5. Install the two bolts onto the two sides of the upper handle and tighten them, as shown by
illustration b in figure 4.
6. Place the lower main bracket onto the short arm of the downtilt supporting arm, and ensure
that the short arm aligns with the slots on the lower main bracket. Then, install the M10 bolts
of the upper handle into the holes, and tighten the bolts to 40 N·m, as shown by illustration c
in figure 3.
Figure 3 Installing a downtilt supporting
arm onto the lower handle
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Figure 4 Installing the lower main
bracket onto the AAU
Installation Introduction—Installing a Main Bracket
Installing an Upper Main Bracket onto a Pole
Procedure
Step 1 The installation technician puts the fixed pulley into a tool kit and
then climbs up with the tool kit and a lifting sling. The assembled
upper main and auxiliary brackets can be carried by the installation
technician or be lifted onto a tower, as shown in figure 5.
Step 2 Mark the position on the pole for installing the upper main bracket
according to installation clearance requirements.
Step 3 Adjust the positions of the M10 nuts on the two bolts according to
the diameter of the pole, and loosen the bolts. Move the auxiliary
bracket, horizontally slide the upper main and auxiliary brackets
onto the pole, and partially tighten the bolts of the auxiliary bracket
to the main bracket, as shown in figure 6.
Figure 5 Binding upper main
and auxiliary brackets
Step 4 The installation technician standing in a proper position on the ground
uses a compass to determine the azimuth (the azimuth is set to 120° as
an example in this case), and the climber adjusts the azimuth according
to the onsite requirements, as shown in figure 7.
Step 5 Use an M10 torque wrench to tighten the two M10 bolts onto the upper
main bracket to 40 N·m so that the upper main and auxiliary brackets
are secured onto the pole, as shown in figure 8.
Figure 7 Adjusting the azimuth
Figure 6 Installing the upper main
and auxiliary brackets onto the pole
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Figure 8 Securing the upper main
and auxiliary brackets onto the pole
Installation Introduction—Lifting an AAU (1)
Lifting an Assembled AAU onto a Tower
Lifting an AAU onto a Tower/Rooftop
Procedure for Binding an AAU
Step 1 The installation technician on the ground binds the lifting sling, as
shown in figure 9.
1) Wind the end of the lifting sling with the cramp ring round the
attachment plate of the upper handle of the AAU. Do not wind
the lifting sling round the outer beam of the attachment plate.
2) Open the cramp ring, clasp the lifting sling to the cramp ring,
and close the cramp ring.
Step 2 The installation technician on the ground uses the traction sling to
securely bind the lower handle of the AAU, as shown in figure 10.
Figure 9 Binding the lifting sling
Figure 10 Binding the traction sling
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Step 1 Lift the AAU.
1) If a winch is used, installation technician A operates the winch and installation
technician B pulls the traction sling outwards to protect the AAU from colliding with the
tower, as shown in figure 11.
2) If no winch is used, installation technician C pulls the lifting sling downwards, and
installation technician B pulls the traction sling outwards to protect the AAU from
colliding with the tower, as shown in figure 12.
Step 2 When the cramp ring is close to the fixed pulley, the climber straightens the AAU upright
and hooks the AAU downtilt supporting arm into the slots of the upper main bracket, as
shown by illustration a in figure 13. Install the bolts on both sides of the upper main
bracket into the holes and tighten them to 40 N·m, as shown by illustration b in figure 13.
Figure 11 Lifting an assembled
AAU (using a winch)
Figure 12 Lifting an assembled
AAU (not using a winch)
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Figure 13 Hooking the downtilt
supporting arm into the slots of
the upper main bracket
Installation Introduction—Lifting an AAU (2)
Lifting an AAU onto a Rooftop
Installing an AAU onto a Pole
Step 1 Installation technicians B and C pull the lifting sling downwards, and installation
technician D pulls the traction sling outwards to protect the AAU from colliding
with the pole, as shown in figure 14.
Step 2 When the cramp ring is close to the fixed pulley, the climber straightens the
AAU upright and hooks the downtilt supporting arm into the slots of the upper
main bracket, as shown by illustration a in figure 15. Install the bolts on both
sides of the upper main bracket into the holes and tighten them to 40 N·m, as
shown by illustration b in figure 15.
Procedure
Figure 14 Lifting an assembled AAU
Figure 15 Hooking the downtilt
supporting arm into the slots of
the upper main bracket
Secure the lower main and auxiliary brackets onto the pole, install the bolt that has
not been partially tightened into the slot on the side of the auxiliary bracket, and use
an M10 torque wrench to tighten the two bolts A and B to 40 N·m, as shown in figure
16.
Figure 17 shows the downtilt supporting arms installed on the upper and lower handles.
Figure 16 Tightening the AAU
to the upper main bracket (with
a downtilt supporting arm)
Figure 17 Downtilt supporting arms
installed on the upper and lower
handles
(a) The downtilt
supporting arm installed
on the upper handle
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(b) The downtilt
supporting arm installed
on the lower handle
Installation Introduction—Lifting Cables onto a Tower
Lifting Fiber Optic Cables onto a Tower
Lifting Power Cables onto a Tower
Step 1 Lift the fiber optic cables onto the tower, as shown in figure18.
Step 2 Secure the fiber optic cables vertically onto the tower using cable clips.
Note:
 After climbing up to the tower, installation technician A secures the fixed pulley onto
the tower platform support and leads the lifting sling through the fixed pulley.
 Installation technician B places the cable coiler for coiling fiber optic cables on the
fiber spools. Installation technician D leads the lifting sling through the stretch sling
of the fiber optic cables and uses the other sling as a traction sling to secure the
cables at 4 m away from the lifting sling knot, as shown in figure 19.
Step 1 Lift the power cables, as shown in figure 20.
Step 2 Secure the power cables onto the tower vertically using cable clips.
Note:
 After climbing up to the tower, installation technician A secures the fixed pulley onto
the tower platform support and leads the lifting sling through the fixed pulley.
 Installation technician B secures three cable ties below the power cable connector
to secure the power cable onto the lifting sling, as shown in figure 21.
 Installation technician B wraps the power cable connector with a layer of PVC
insulation tape, as shown in figure 22.
Figure 18 Lifting fiber optic cables onto a tower
Figure 20 Lifting power
cables onto a tower
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Figure 19 Binding fiber optic cables
Figure 21 Binding the
cables with cable ties
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Figure 22 Wrapping the connectors
with the PVC insulation tape
AAU5310 Installation—Installing PGND and Power Cables
Installing an AAU PGND Cable
Installing a Power Cable
Step 1 Prepare an AAU PGND cable.
 Cut the cable to the length suitable for the actual cable route.
 Add OT terminals to both ends of the cable according to the instructions in Assembling
the OT Terminal and the Power Cable.
Step 2 Connect one end of the AAU PGND cable with an M6 OT terminal to the ground terminal on
the mounting kits, and use a torque wrench to tighten the ground bolt to 4.8 N·m. Connect
the other end of the cable with an M8 OT terminal to the external ground bar.
Step 3 Route the cable according to the requirements.
Step 4 Label the installed cable.
Step 1 Connect a female fast connector (screw-free type) of the
power cable to the power port on the AAU, as shown in the
following figure.
Step 2 Connect the other end of the power cable to the power port
on the power equipment.
Step 3 Route the cable according to the requirements.
Step 4 Label the installed cable.
Figure 23 Installing the AAU
PGND cable (one AAU on a pole)
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Figure 24 Correct and
incorrect positions of OT
terminals
Figure 25 Connecting a female fast
connector (screw-free type) to the
power cable
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Installation Introduction—Installing CPRI Fiber Optic
Cables
Installing CPRI Fiber Optic Cables
Figure 27 Installing CPRI fiber optic cables if single-fiber bidirectional
optical modules are used
Step 1 Connect the end labeled 1A and 1B on the fiber optic cable to the optical
module on the AAU side, as shown in the following figure.
Step 2 Connect the end labeled 2A and 2B on the fiber optic cable to the SFP optical
module connected to the CPRI port of the UBBPfw1 on the BBU5900 side.
Step 3 Insert the waterproof blocks into the vacant cable troughs.
Step 4 Route the cable according to the requirements.
Step 5 Label the installed cable.
Figure 26 Installing CPRI fiber optic
cables if two-fiber bidirectional optical
modules are used
Figure 28 Installing a single-fiber bidirectional fiber optic cable
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Installation Introduction—Adjusting the Mechanical Downtilt
Mechanical Downtilt Adjustment
When the downtilt supporting arm is installed onto the upper handle, the
adjustable range is 0 to 20 degrees.
When the downtilt supporting arm is installed onto the lower handle, the
adjustable range is –20 to 0 degrees.
The method of adjusting the mechanical downtilt when the downtilt supporting
arm is installed onto the upper handle of an AAU is the same as that when the
downtilt supporting arm is installed onto the lower handle of the AAU. This
section describes the former one.
The figure on the right shows a downtilt supporting arm installed on the upper
handle of an AAU and a downtilt supporting arm installed on the lower handle
of an AAU.
Figure 29 Adjusting the mechanical downtilt based
on the scale on the support for the downtilt
supporting arm
Procedures for Adjusting the Mechanical Downtilt by Using the
Inclinometer
Step 1 Loosen the six bolts on the attachment plate of the downtilt supporting
arm and the AAU mounting kits to the adjustable status (Do not remove the
bolts), as shown in figure 29 on the right.
Step 2 According to the scale plate, adjust the downtilt supporting arm to an
angle close to the required angle, as shown in figure 29.
Step 3 Place the inclinometer on the AAU and check whether it is adjusted to
the required angle. If not, adjust the angle of the AAU until the angle displayed
on the inclinometer reaches the required angle.
Step 4 After the mechanical downtilt is adjusted, use a torque wrench to
tighten the bolts loosened in Step 1 to 40 N·m.
Step 5 Remove the inclinometer from the AAU and pack it up.
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Surge Protection—Lightning Rod
1. In pole-mounted or pole top-mounted scenarios, the installation site must meet
the requirements for surge protection. Otherwise, surge protection measures
should be taken.
2. A lightning rod should be installed to protect AAUs from direct lightning strikes,
if the following two conditions are met at the installation site of the AAU.
a. When the AAU is pole-mounted or pole top-mounted, the distance between
the top of the pole and that of the AAU is less than 30 cm (11.81 in.).
b. The installation site of the AAU is not within the protection coverage of the
nearby lightning rod.
3. If a lightning rod is to be installed at the installation site of the AAU, the
following conditions should be met:
a. The lightning rod must be 30 cm higher than the top of the AAU.
b. The AAU is covered within 45-degree protection area of the lightning rod.
c. The lightning rod must be grounded properly.
d. The ground cable of the AAU must be connected to the ground bar of the
ground grid.
In addition to the preceding requirements, the lightning rod must be installed
according to the related surge protection standard of the building.
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