Replacing antenna integrated radio units air32

Replacing Antenna Integrated Radio
Units
AIR 32
Operating Instructions
123/1543-LZA 701 6001/1 Uen J

Copyright
© Ericsson AB 2016, 2017. All rights reserved. No part of this document may
be reproduced in any form without the written permission of the copyright
owner.
Disclaimer
The contents of this document are subject to revision without notice due to
continued progress in methodology, design and manufacturing. Ericsson shall
have no liability for any error or damage of any kind resulting from the use of
this document.
Trademark List
All trademarks mentioned herein are the property of their respective owners.
These are shown in the document Trademark Information.
123/1543-LZA 701 6001/1 Uen J | 2017-12-06

Contents
1 Introduction 1
1.1 Prerequisites 1
2 Replace AIR Unit 4
2.1 Unpack and Check Materials 4
2.2 Handle AIR Unit 5
2.3 Remove AIR Unit 7
2.4 Install an AIR Unit 16
2.5 Pack Faulty AIR Unit 25
3 Replace Fan Unit 28
3.1 RF Safety Guidelines when Replacing Fan Module 28
3.2 Remove Fan Unit 28
3.3 Install Fan Unit 30
4 Perform Concluding Routines 33
Contents
123/1543-LZA 701 6001/1 Uen J | 2017-12-06

Replacing Antenna Integrated Radio Units
123/1543-LZA 701 6001/1 Uen J | 2017-12-06

1 Introduction
This instruction describes how to replace an Antenna Integrated Radio (AIR)
32 unit, and the fan unit in preparation for installing replacement units.
If an AIR unit is to be replaced with a different type of AIR unit, refer to
Upgrading Radio Configurations, and applicable Install Antenna Integrated
Radio Units document.
Note: AIR unit removal and subsequent replacement procedures are
ordinarily performed during off-peak hours to minimize any potential
traffic disturbances.
1.1 Prerequisites
This section contains information on the documents, tools, and conditions that
apply to the procedures.
Note: Information on compatibility issues can be found in Compatibilities for
Hardware and Software.
1.1.1 Documents
Make sure that the following documents are read and
understood:
• Personal Health and Safety Information
• System Safety Information
1.1.2 Tools
Before starting this procedure, ensure that the tools in Table 1 are available.
Table 1 Tools Required
Product Name Product Number
250 mm 3/8-inch extension bar Personal tools
LTT 601 135/1
Introduction
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Product Name Product Number
Side cutter
Slotted socket 27/32 mm, open-
ended head
LSB 107 05/1
Mini penlight, with head band LVT 901 04/1
Torque wrench 20–100 Nm, C-
wrench head 32 mm
LTT 601 141/1
LSB 107 12/5
Torque wrench 5–25 Nm, socket
13 mm
LTT 601 140/1
wrench head 13 mm
LTT 601 140/1
LSB 107 12/1
Torque wrench 5–25 Nm, socket
17 mm
LTT 601 140/1
LTT 601 138/1
wrench head 17 mm
LTT 601 141/1
LSB 107 12/7
Lifting device –
1.1.3 Conditions
Before starting this procedure, ensure that the following conditions are met:
• A work order is available.
• A new AIR unit or fan module is available.
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• If applicable, a client configured to run the RBS Element Manager
(RBS EM), with the relevant Java™ plug-in version installed, is available.
• If applicable, a new Configuration Version (CV) is loaded.
• All relevant documentation is available.
• All keys are available, and site access is granted.
Introduction
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 3

2 Replace AIR Unit
Reuse the mounting brackets unless they are broken or if the AIR unit is
replaced with another type of AIR unit.
2.1 Unpack and Check Materials
Steps
1.
Ge6651B
Examine the carton and packing
material for damage. If it is
damaged, immediately file a
complaint with the transport
company.
Note:
Unpack the unit only at the cell
site, shortly before installation.
2.
Ge6651C
Remove the straps from the
carton.
3.
Ge6679B
Remove the tape from the carton.
Note:
Ensure not to damage the items
in the carton.
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4. Verify that the items delivered
correspond to the packing list
and that they are not damaged.
If any of the items are damaged,
refer to Handling Faulty
Equipment.
5. Keep the unit in the carton until hoisting the unit up to the pole or wall.
6. Save the carton and packing material for any return of units. For more
information about packing and returning units, refer to Replacing Antenna
Integrated Radio Units and Handling Faulty Equipment.
Note: The AIR unit must not be left in an outdoor environment more
than one week prior to taking it into service. In cases where high
humidity or cold temperatures apply, the AIR unit must be taken
into service within 48 hours.
2.2 Handle AIR Unit
This section provides instructions for handling the AIR unit without the
packaging material.
Note: Always try to keep the AIR unit in the packaging materials when on
the ground to avoid damaging the unit.
Steps
1.
Ge5909A
Resting the AIR unit on the
mounting brackets.
2.
Ge5910A
Do not rest the AIR unit on the
radome without packaging
materials.
Replace AIR Unit
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 5

3.
Ge5862B
Lifting the AIR unit by hand.
4.
Ge5889B
Lifting the AIR unit by rope.
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2.3 Remove AIR Unit
Warning!
When working at height, there is a risk of falling objects. Falling objects can cause
serious injury or even be fatal. Always wear a helmet and avoid standing in an area
where objects can fall.
Warning!
High energy levels are present in this unit. Improper handling of the unit can lead to
short circuits that can result in serious injury. Exercise care when working with this
unit.
2.3.1 Prepare Removal
Steps
1.
Ge6814A
Inform the Operation and
Maintenance Center (OMC) that
work is to start at the node site.
The OMC can then take the
affected sectors out of service to
minimize any potential traffic
disturbance.
Note:
If it concerns a multistandard
RBS, it is important that all OMCs
concerned are informed that work
is about to start.
2. Ensure that the AIR unit is in a locked administrative state, if possible.
Replace AIR Unit
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 7

3.
Ge6817A
ON
OFF
Switch off the external power to
the AIR unit. There is no power
switch on the AIR unit. The
external power switch is located
at the site.
4.
Ge5874A
Ensure that the AIR unit is
powered off and that the green
optical indicator is off.
The optical indicators can be
hidden behind a sliding cover.
5. Note the positions of all cables.
Do this by taking a photo, marking the cables, or noting the positions
down on paper.
Ge5650B
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6.
Ge6386B
Disconnect the power cable by
turning the connector
counterclockwise and pull out the
connector. Put clean protective
caps on the AIR unit power
connector and on the power
cable connector, or cover the
power cable connector with a
plastic bag .
Note:
If a DC power adapter is used, do
not remove it from the DC power
connector when removing the
power cable.
7. 32 mm
Ge6389E
If applicable, remove the self-
fusing tape from the Radio
Frequency (RF) cable connectors
and disconnect the RF cables
from the AIR unit.
8.
Ge6388C
1
Loosen the bayonet shell
protecting the optical cables by
turning the connector in a
counterclockwise motion.
9.
Ge5802B
1
Slide the bayonet shell from the
bulkhead connector.
10.
Ge5792B
1
Slide the plug body with the seal
ring from the optical cable end.
Replace AIR Unit
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 9

11.
Ge6387B
Carefully disconnect the optical
cables from the AIR unit.
One or more optical cables can
be connected to the AIR unit.
Remove all optical cables as
described in Step 8 to Step 11.
Note: Never touch the end face of the optical connectors. Keep the
cables away from dirt or grease, which can damage fiber optic
cables. Put protective caps on the optical cable ends or cover
them with a plastic bag. Too much or careless bending can
damage the cable. The minimum allowed bending radius can be
found in Installing Optical Cables for Main-Remote Solutions.
12.
Ge6392A
13 mm
Disconnect the ground cable
from the AIR unit.
13. Ensure that all the cable connectors on the AIR unit and the hanging cable
ends are covered with protective caps. If the protective caps are missing
or are not clean, the cable ends can be covered with plastic bags.
Note: Ensure not to damage the hanging cable ends when removing
and reinstalling the AIR unit.
14.
Ge2097A
Attach a lifting device onto the
top of the pole or wall where the
AIR unit is attached.
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15.
Ge5861A
A
B
Pull a rope through the block on
the lifting device and attach the
end of the rope closest to the
pole or wall to the lifting eye (A)
of the top part of the AIR unit,
either directly or through a snap
link.
With a snap link, attach a rope to
the lifting eye (B) on the lower
part of the AIR unit.
Note: Be careful not to damage the AIR unit against the pole, mast or
wall when hoisting it.
2.3.2 Remove AIR Unit from Single Unit Pole Installation
Steps
1. Loosen and remove the nuts holding the AIR unit to the lower pole clamp
(1) and the upper pole clamp (2), and unhook the AIR unit from its
installation.
Replace AIR Unit
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Ge6105B
17 mm
1
2
2.
Ge5898A
Carefully lower the unit directly
into the packaging material to
avoid damaging the unit.
3. Continue the procedure in Install an AIR Unit on page 16.
2.3.3 Remove AIR Unit from Single Unit Wall Installation
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Steps
1. Loosen and remove the nuts holding the AIR unit to the lower wall bracket
(1) and the upper wall bracket (2), and unhook the AIR unit from its
installation.
Ge6106B
17 mm
1
2
2.
Ge5898A
Replace AIR Unit
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2.3.4 Remove AIR Unit from a Triple Unit Pole Installation
Steps
1. Loosen and remove the nuts holding the AIR unit to the lower pole clamp
(1) and the upper pole clamp (2), and unhook the AIR unit from its
installation.
Ge6112B
17 mm
1
2
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2.
Ge5898A
2.3.5 Remove AIR Unit from Down Tilt Installation
Steps
1. Mark the position of the AIR unit and loosen the six bolts. Set the down tilt
angle to 0° and retighten the bolts.
Ge5893A
17 mm
10 Nm
17 mm
2. Loosen and remove the two nuts holding the AIR unit to the lower angle
bracket (1) and the upper angle bracket (2), and unhook the AIR unit from
its installation.
Replace AIR Unit
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Ge6107C
17 mm
13 mm
2
1
3.
Ge5898A
2.4 Install an AIR Unit
Select one of the following scenarios and perform the procedures in the
section indicated:
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• Installing the AIR unit on a pole or wall, see Install the AIR Unit on a Pole
or Wall on page 17.
• Installing the AIR unit on a down tilt installation kit, see Install AIR Unit on
Down Tilt Installation Kit on page 20.
For more detailed information on the AIR unit installation procedure, refer to
Install Antenna Integrated Radio Units.
2.4.1 Install the AIR Unit on a Pole or Wall
Steps
1.
Ge6752A
Hoist the AIR unit with the
packing material up to the
desired position on the pole or
wall.
2. Hook the AIR unit onto the upper and the lower pole clamps or wall
brackets. Finger tighten the four nuts.
a.
Ge5869C
Single Unit Pole
Installation
Replace AIR Unit
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b.
Ge5912C
Single Unit Wall
Installation
c.
Ge5917C
Triple Unit Pole
Installation
3. Remove the lifting strap and the packing material from the AIR unit.
4.
Ge6110A
To set the direction of the AIR
unit, a sight can be temporarily
attached to the AIR unit.
The AIR unit is a directional
antenna; the direction is specified
in the site installation documents.
5. Adjust the direction of the AIR unit by loosening nut A, as illustrated below,
and turning the AIR unit until it is pointing in the correct direction. Do not
remove any nuts.
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a.
lo
wer clam
p
top side
Ge2114A
A
40 Nm
17 mm
Single unit pole
installation.
b.
lo
wer clam
p
top side
Ge3209A
A
40 Nm
17 mm
Single unit wall
installation.
c.
A
A A
40 Nm
17 mm
Ge3210A
lo
wer clam
p top side
lowerclamp
top
sid
elowerclamp
topside
Triple unit pole
installation.
6. Tighten the nuts on the upper and lower pole clamps or wall brackets.
a.
Ge6655A
40 Nm
17 mm
Installing the Single Unit
Pole Installation.
Replace AIR Unit
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b.
Ge6654A
40 Nm
17 mm
Installing the Single Unit
Wall Installation.
c.
Ge6653A
40 Nm
17 mm
Installing the Triple Unit
Pole Installation.
7. Continue the installation of the AIR unit as instructed in Connect Ground
Cable on page 22.
2.4.2 Install AIR Unit on Down Tilt Installation Kit
Steps
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1.
Ge6752A
Hoist the AIR unit with the
packing material up to the
supporting rig on the pole.
2. Hook the AIR unit onto the upper angle bracket on the supporting rig and
fit the AIR unit to the lower angle bracket. Finger tighten the upper nuts.
Tighten first the two lower nuts and then the two upper nuts to the support
rig.
Ge5896C
40 Nm
17 mm
20 Nm
13 mm
3. To adjust the down tilt angle, loosen the six bolts and set the angle.
Retighten the bolts.
Replace AIR Unit
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The mechanical down tilt angle is specified in the site installation
documents.
Ge5892B
17 mm
50 Nm
17 mm
1 3
4. Remove the lifting strap and the packing material from the AIR unit.
5. Continue the installation of the AIR unit as instructed in Connect Ground
Cable on page 22.
2.4.3 Connect Ground Cable
1.
Ge6385B
20 Nm
13 mm Connect the ground cable. The
correct order of the ground cable
connector, flat washer, lock
washer, and the M8 nut is
important.
2.4.4 Connect Optical Cables
For instructions on installing the optical cable, refer to Installing Optical Cables
for Main-Remote Solutions. The cables are fiber optic and must be handled
with care. Never touch the end-face of the optical connectors. Only remove
protective covers right before installation.
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For information on how to handle optical cables, refer to Handling SFP
Modules and Optical Cables
Steps
1.
Ge5040A
Remove the protective caps from
the AIR unit.
Note:
The Small Form-factor Pluggable
(SFP) module is integrated in the
AIR unit.
2.
Ge1722A
Draw back the protective cover
from the optical cable connector.
3.
Ge1723A
Draw back the protective cover
from the optical cable connector.
4.
Ge6387B
Carefully plug the optical cable
connector into the AIR unit.
Note:
Attach the optical cable carefully
to avoid damaging the cable or
connector.
Make sure that the minimum
bending radius for the fiber optic
cables is not exceeded. Do not
twist the fiber at the minimum
bending radius.
Replace AIR Unit
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 23

5.
Ge5792A
1
Clamp the plug body with the
seal ring to the optical cable.
6.
Ge5802A
1
Slide the bayonet shell to the
bulkhead connector.
7.
Ge5793A
1
Clamp the bayonet shell on the
bulkhead connector clockwise.
8. To connect additional optical cables to the AIR unit, repeat the instructions
from Step 1 to Step 7.
2.4.5 Connect the RF Cables (Optional)
Steps
1.
25 Nm
32 mm
Ge6389B
Remove the protective caps from
the RF connectors and the RF
jumper cables. Connect the RF
jumper cables according to notes
from Step 5 in Section 2.3.1 and
tighten the connectors.
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2.
Ge2739AUnit of measurement: mm
55
It is recommended to apply self-
fusing tape on the RF
connectors. Start applying the
self-fusing tape approximately
55 mm below the upper edge of
each connector. Overlap each
turn by 50%. Apply the tape all
the way up to the edge of the AIR
unit. Vary the stretching of the
tape, and avoid spaces.
3.
Ge1106B
30
Unit of measurement: mm
Apply two, half-overlapped,
slightly-stretched layers of
insulation tape.
For each layer, start 30 mm
below the lower end of the self-
fusing tape, and proceed all the
way up to the edge of the AIR
unit.
2.4.6 Connect −48 V DC Power Supply
Steps
1. Remove the plastic dust cap from the DC power cable connector and the
protective cap from the power connector on the AIR unit.
2.
Ge6386B
Connect the power connector to
the AIR unit by turning the
connector clockwise until it snaps
into place.
2.5 Pack Faulty AIR Unit
Steps
Replace AIR Unit
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 25

1.
Ge6652A
Open the carton and put the bag
in the carton.
Note:
Only transport the unit in an
approved packaging carton.
2.
Ge6648A
Insert the AIR unit into the
fitments.
3.
Ge6649A
Put the AIR unit and attached
fitments into the carton.
Note:
Ensure there are no loose
objects in the carton that can
damage the unit.
4. Put a filled out Site Failure Note (SFN) in the carton. For more information
about the SFN, refer to Handling Faulty Equipment.
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5.
Ge6811A
Close and seal the carton with
tape.
Put three tape strips crosswise,
and one strip lengthwise along
the whole box.
6.
Ge6650A
Seal the carton with packing
strips.
Note:
Ensure to use non-steel polyester
straps.
7.
Ge6651A
Strap the carton to the pallet.
Replace AIR Unit
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 27

3 Replace Fan Unit
The fan can be replaced during normal operation. It is recommended to
complete the replacement of the fan within 10 minutes to not overheat the AIR
unit.
Warning!
When working at height, there is a risk of falling objects. Falling objects can cause
serious injury or even be fatal. Always wear a helmet and avoid standing in an area
where objects can fall.
3.1 RF Safety Guidelines when Replacing Fan Module
The AIR 32 product has been tested in accordance with relevant technical
standards to determine the RF safety limit compliance boundary for
standalone operation. A compliance boundary is the volume around the
product outside of which the RF exposure is below applicable limits.
Information about RF electromagnetic field exposure and compliance
boundaries for this product is provided in Radio Frequency Electromagnetic
Exposure.
For the configurations tested by Ericsson, the compliance boundary for
occupational exposure extends 0 cm behind the AIR 32 product. This means
that fan unit replacement work can be conducted behind the product. For other
configurations than those tested or for markets with exposure limits different
from the international limits applied in the tests, the RF safety limit compliance
boundary need to be determined before the work is commenced.
3.2 Remove Fan Unit
Steps
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1.
Ge6678A
Remove the straps from the
carton.
2.
Ge6679A
Remove the tape from the carton.
Note:
Make sure not to damage the
items in the carton.
3.
Ge6760A
Check the replacement fan
before proceeding.
If any of the items are damaged,
refer to Handling Faulty
Equipment.
4.
Ge6761A
Carefully open the fan tray by
twisting the plastic screws.
Replace Fan Unit
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5.
Ge6762A
Disconnect the fan cables using
the orange straps.
6.
Ge6763A
Twist the plastic screw to release
the fan from its position.
7.
Ge6764A
Pull out the fan.
Note:
If the AIR unit is operational, it is
recommended to install a
replacement fan within 10
minutes.
3.3 Install Fan Unit
Steps
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1.
Ge6765A
Insert the replacement fan into
the fan tray.
Make sure the orange tracks are
positioned correctly.
2.
Ge6766A
Push the fan into position and
twist the plastic screw to secure
it.
3.
Ge6758A
Carefully connect the fan cables
by pushing them into place.
The fan will start up shortly after
the cable is connected.
Replace Fan Unit
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4.
Ge6759A
Close the lid to the fan tray by
twisting the plastic screws.
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4 Perform Concluding Routines
Proceed with the instructions in the work order or in the Operating Instruction
(OPI) that refers to this OPI.
Steps
Before leaving the site, do the following:
1. Make sure that the AIR unit is operational and that no alarms are active.
Information about optical indicators is found in Indicators, Buttons, and
Switches.
Note: Reaching final optical indicator status can take up to 10 minutes.
2. Save the configuration backup, if applicable.
3. Exit the software application and disconnect the terminal, if applicable.
4. Collect all tools.
5. Inform the OMC that work is finished at the node site.
6. Close and lock the site, if applicable.
7. Complete the work order.
8. Follow the procedures for the return and disposal of replacement parts
and the disposal of packaging. Information about how to handle faulty
equipment is found in Handling Faulty Equipment.
Perform Concluding Routines
123/1543-LZA 701 6001/1 Uen J | 2017-12-06 33

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