Evolium A9112 Micro Node B Maintenance Handbook 211150000e04

7/27/2019 Evolium A9112 Micro Node B Maintenance Handbook 211150000e04

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Evolium UTRAN

Evolium A9112 Micro Node B

Maintenance Handbook

Node B Document

Procedural Guide

Release R5 from MR1

3BK 21115 AAAA TQZZA Ed.04

Z3EV00007-0028 Ed.04


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Status RELEASED

Short title Maintenance Handbook

All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Evolium.

BLANK PAGE BREAK

2 / 483BK 21115 AAAA TQZZA Ed.04

Z3EV00007-0028 Ed.04


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Contents

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1 Replace Micro Node B RITs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1 Replacement Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.2 Replace Micro Node B Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101.3 Replace Fuses and E1 Lightning Protection in COBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.4 Replace ACCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191.5 Replace MCON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231.6 Replace Fan Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271.7 Replace Top of Cover with Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291.8 Replace Site Support Cabinet RITs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2.1 Recommended Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442.2 Adjust Local MSUMU Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442.3 Recommended Replacements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472.4 Battery Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47


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Figures

Figures

Figure 1: Micro Node B Installed with Protective Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 2: Micro Node B Housing Installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 3: COBO with MCON and ACCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 4: ACCO Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 5: MCON Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 6: Fan Casette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 7: Top of Cover with Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 8: SSC, Position of RITs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 9: SSC, Battery Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Figure 10: SSC, Installation of Battery Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 11: SSCPS, LED Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 12: SSCFH, Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 13: SSCFH, Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 14: SSCCF, Detailed View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Figure 15: SSC, AC Connection Field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

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Preface

Preface

Purpose This handbook describes the Evolium A9112 Micro Node B and Side SupportCabinet (SSC) maintenance procedures. It breaks down each maintenancetask into a series of step-by-step instructions, and lists the tools and materialsrequired.

Note: Your network may not include all of the hardware modules covered in thishandbook.

Whats New In Edition 04

Overall document quality was improved following an editorial review.

In Edition 03Key set notice was added. Refer to :

Replace Micro Node B Unit (Section 1.2.3)

Replace ACCO (Section 1.4)

Replace MCON (Section 1.5).

Step to set the code server path was added. Refer to Replace Micro Node BUnit (Section 1.2.3).

In Edition 02

The MBBC handling feature was added. Refer to Replace Micro Node BUnit (Section 1.2).

Overall document quality was improved following an editorial review.

In Edition 01

First official release of document.


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Preface

Audience This handbook is intended for:

Maintenance engineers

System support engineers

Network technicians

Network operators.



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Preface

Assumed Knowledge You must have a basic understanding of the following:

Evolium Radio Network Subsystem (RNS) operations and maintenance

Managed object hierarchies for the Micro Node B

RNS hardware configurations

Network Element Manager for the Node B (NEM-B)

The Operation and Maintenance Center-Radio (A1353-UR OMC-R)

Telecommunications engineering

Anti-static rules and procedures.

Frequency meters.

You must be familiar with general safety requirements, rules and procedures.Refer to the General Safety Instructions for Evolium Node B / BTS.


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Preface



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1 Replace Micro Node B RITs


This section describes how to replace the A9112 Micro Node B and SideSupport Cabinet RITs.


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1.1 Replacement Principles

1.1.1 Prerequisites

The following prerequisites apply to replacement procedures:

You must read the General Safety Instructions for Evolium Node B / BTS

before performing any maintenance procedures.

Become familiar with electrostatic precautions.

Know how to use the Evolium Node B terminal.

Establish an efficient means of communication with an A1353-UR OMC-R

operator in order to perform Micro Node B commands when required.

1.1.2 Tools and Materials

The operator must have:

An anti-static wrist strap

Hand tools specified in the relevant procedures

A serviceable replacement RIT with an identical part number, unless

stated otherwise.

1.1.3 Impact on System

The impact on the system depends on the nature of the RIT and its position inthe system. Refer to the specific replacement procedures in this section.

1.1.4 Restrictions

None.

1.2 Replace Micro Node B Unit

For detailed information on the Micro Node B, refer to Micro Node B Mechanicsin the Evolium A9112 Micro Node B Hardware Description.

1.2.1 Micro Node B Versions

Micro Node B is equipped with one of the following BB versions:

MBBA is the first-generation BB board in Micro Node 3BK26791 AACx.

MBBC is the second-generation BB board in Micro Node 3BK26791 ABAx.

Only a Micro Node B equipped with MBBC is HSDPA-capable.Therefore, if HSDPA is in use or planned, never replace an MBBC-equippedMicro Node B with an MBBA-equipped Micro Node B.You can, however, replace an MBBA-equipped Micro Node B with anMBBC-equipped Micro Node B under any circumstances.

To identify the Micro Node B version you can:



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Refer to the equipment label on the right side of the Micro Node B housing.

Refer to [ Labels ] in the Evolium A9112 Micro Node B Hardware Description.

Use the Node B terminal and check the RIT name in Tree View, Hardware

Modules, Baseband Unit, RIT Name. Refer to the Evolium Node B NEM-B

User Guide.

1.2.2 Tools and Impacts

1.2.2.1 Tools and Materials


A small flathead screwdriver

A medium flathead screwdriver

A medium crosshead screwdriver

Pliers for antenna disconnection

A TORX screwdriver

Equipment suitable for lifting the Micro Node B housing from its mounting

Node B terminal and an Ethernet (100Base TX category5/UTP Cross)

communication link cable to connect it to the MMI-ETH port. The MMI-ETH

port is located on the MCON of the COBO.Refer to the Evolium Node B NEM-B User Guide for information on how touse the terminal.

1.2.2.2 Impact on System

All telecommunications resources are lost when the Micro Node B is locked.


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1.2.3 Replace Micro Node B Unit

Heavy EquipmentThe Micro Node B weighs 25 kg. Injury to personnel and damage to equipmentcan result if it is dropped or otherwise mishandled.

Use suitable equipment to lift the Micro Node B. Do NOT lift it from the mountingframe until it is properly supported.

1.2.3.1 Dismount Micro Node B

If the protective cover is used, go to step (1). If no protective cover is used,go to step (2).

Heavy EquipmentUse suitable equipment to lift the Micro Node B. Do NOT lift it from the mountingframe until it is properly supported.

To dismount the Micro Node B:

1. Open the front protective cover on the Micro Node completely until the frontcover is fastened with the magnetic clip to access the COBO.

2. Loosen the retaining bolts on the front cover of the COBO and removeit from the COBO base.

3. Connect the Node B terminal to the MMI-ETH port on the MCON in theCOBO. See the figure MCON Layout (5)for the position of the MMIconnector.

4. Use the Node B terminal to display the following information and noteit for use later in the procedure:

All module states

All outstanding alarms

All basic configuration

All IP settings.

If connection to the Micro Node B is not possible (for example, if the internalhardware crashes), go directly to step 8.

5. Use the Node B terminal to set the Micro Node B communication state tooffline (allocation of configuration rights). This prohibits A1353-UR OMC-Rmanagement.

6. Use the Node B terminal to back up the Micro Node B configuration data.Enter the backup FTP root directory. The MSUMU then automatically putsthe backup file on the FTP server.

7. Use the Node B terminal to set the Micro Node B administrative state tolocked. This removes telecommunications traffic.

8. Remove the AC power plug from the bottom of the Micro Node B.

If the optional fan module is installed in the cover top, disconnect the powerand alarm cables to the fan from the COBO. See the figure ACCO Layout (4)

for the position of the AC and fan connectors.

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9. If the protective cover is used, loosen its retaining bolts and remove the frontcover. Otherwise continue with the next step.

Protective CoverFully in Place

Figure 1: Micro Node B Installed with Protective Cover

10. Remove the antenna connectors at the bottom of the Micro Node B, carefullynoting their positions for reconnection.

11. Place the lifting equipment (manual lift with handwheel and handle, or crane)in position next to the mounting frame and secure it to the Micro Node B.

12. Loosen the bolts that secure the Micro Node B in position (two bolts on theCOBO and two bolts on the top of the Micro Node B housing).

13. Lift the Micro Node B clear of the mounting points at the top of the mountingframe and free of the Micro Node B connector at the top of the COBO.

Rear sectionof protectivecover

A9112 Mirco Node B

COBO

Protective CoverPartly Removed

Figure 2: Micro Node B Housing Installed


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1.2.3.2 Install Micro Node B

To install the new Micro Node B:

1. Lift the replacement Micro Node B onto the mounting points at the top of themounting frame. Then, lower the Micro Node B carefully onto the mountingframe to engage with the Micro Node B connector at the top of the COBO.

2. Tighten the four bolts (two bolts on the COBO and two bolts on the top of theMicro Node B housing.) to secure the Micro Node B in position.

3. Detach the lifting equipment from the Micro Node B and pull it clear fromthe mounting frame.

4. Replace the antenna connectors. Make sure you connect it to the correctconnector.

5. Tighten the screw-connector by hand, then shake the cable a little. Using thespecific tightening tool, tighten firmly with the torque listed below.

RF Connector Type Torque [Nm]

N 0.7 - 1.1

7/16 25

6. Reconnect the AC power plug to the bottom of the Micro Node B.

7. If applicable, reconnect the power and alarm cables to the fan from theCOBO.

8. Replace the front protective cover in position over the Micro Node B.



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1.2.3.3 Restore Telecommunications Resources

To restore telecommunications resources:

1. Power on the Micro Node B. Wait until the green LED PS_OK and yellowLED OP are lit up. If power is on and OK, the Micro Node B is operational.

2. Use the Node B terminal to check that the communication state indicatoris green (Micro Node B is offline). Otherwise, set the Micro Node Bcommunication state to offline (allocation of configuration rights). Thisprohibits A1353-UR OMC-R management.

3. Use the Node B terminal to lock the Micro Node B.

4. Use the Node B terminal to enter the Micro Node B IP address and namesas noted in step 4 of the dismount procedure.

If connection to the old Micro Node B is not possible, if for example the MicroNode B crashes, ask the A1353-UR OMC-R operator for the basic configurationand IP address settings for the new Micro Node B.

5. Use the Node B terminal to trigger a software replacement of the MicroNode B to ensure the correct software is loaded on the new Micro Node B.Use the Node B terminal to set the code server path in the SUMU to allowoperational software download. Refer to Set CodeServer in the EvoliumNode B NEM-B and RIUT User Guide.

6. Use the Node B terminal to restore the configuration data as noted in step6 of the previous procedure, using the same FTP server address. TheMicro Node B performs an auto-reset and reboots. Check that the MicroNode B is unlocked; if not, unlock it.

7. Use the Node B terminal to display the states of all the modules and all theoutstanding alarms and ensure they are the same as those in step 4.

8. Use the Node B terminal to set the Micro Node B communication state toonline (release the configuration rights). This re-enables A1353-UR OMC-Rmanagement.

After this local operation, the user and the password falls back to the initialstate (default keyset). Inform the OMC-R operator to assign the correct keyset to this Node B.Refer to the Evolium A1353-UR OMC-R Administration Handbook.

9. Contact the A1353-UR OMC-R for confirmation of site status and examinethe test calls for the final check.

10. Disconnect the Node B terminal.

11. Replace the COBO front cover in position over the base, and then tightenthe retaining bolts.

12. Close the protective cover, if applicable.


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1.3 Replace Fuses and E1 Lightning Protection in COBO

The following RITs are located inside the COBO:

Fuses for Micro Node B power supply and fan

E1 lightning protection.

The COBO is located inside the bottom section of the protective cover onthe Micro Node B.

For detailed information on this unit, refer to COBO in the Evolium A9112Micro Node B Hardware Description.


You must have:


An Allen key for COBO hatch

The Node B terminal and an Ethernet (100Base TX category5/UTP Cross)


port is located on the MCON of the COBO. Refer to the Evolium Node B

NEM-B User Guide for information on how to use the terminal.



1 2 3 4

1 2 3 4

1 2 3 4

1 2 3

1 2 3

1 2 3

1 2 3

1 2 3

1 2 3

1 2 3 4

1 2 3 4

1 2 3 4

L

PE

N

L L

L

PE PE

PE

N N

N

L

L

N

N Fan AC Mains in

X402

X400

1 2 3

1 2 3

1 2 3

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3

1 2 3

1 2 3

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3 4

1 2 3

1 2 3

1 2 3

11 2

1 2

1 2

1 2

ACCO

X320

X202

OM_TR

Fault

OP

GND

X102

X302

X303 E1 P1/P2 X101

X200

X321

X322 E1 P3/P4

X106X107

X105

X104

X103

PS_OK

X203

X100

E1 P1

E1 P2

E1 P3

E1 P4

Ant. Tilt

RX

TX

GND

X313 X327

X310

X311

X312

X314

X315

X316

75Ohm120

75

Ohm120

UMTS

Frame

Trace

CLXCal.

PMS

COBO Ext.Alarm 7+8

Ext.Alarm 5+6

Ext.Alarm 3+4

Ext.Alarm 1+2

MMI

Link M_OKX204

MCON

Door

switch

Figure 3: COBO with MCON and ACCO



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1.3.3 Remove Fuses and E1 Lightning Protection

Equipment Shock HazardPossible death or serious physical harm to personnel and damage to equipmentcan result if the power to the equipment is not removed.

To remove a fuse or lightning protection unit:

1. If applicable, open the front protective cover on the Micro Node B completelyuntil the front cover is fastened by the magnetic clip to access the COBO.


3. Connect the Node B terminal to the MMI-ETH port on the MCON inthe COBO. See the figure MCON Layout (5) for the position of the MMIconnector.

4. Use the Node B terminal to note module states and alarms.



7. Switch the:

AC power supply to the COBO OFF

Side Support Cabinet supply to COBO, if appropriate.

8. Remove the appropriate faulty fuse or protection unit. The following items

are replaceable:

Micro Node B power supply fuses (2 x 2.5 A) and fan fuses (2 x 1.25 A)Refer to the figure ACCO Layout (4)for the position of the AC and fanfuses.

E1 lightning protection (eight modules).Refer to the figure MCON Layout (5)for the position of the E1 lightningprotection elements.


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1.3.4 Replace Fuses and E1 Lightning Protection

To replace a fuse or lightning protection unit:

1. Insert the new power supply fuse or E1 lightning protection unit.

2. Switch the AC power supply ON to the COBO.

Switch the SSCsupply ON to the COBO, if appropriate.

3. Wait until the green LED PS_OK and yellow LED OP are lit up. If power ison and OK, the Micro Node B is now operational.


5. Use the Node B terminal to display the states of all the MOs and allthe outstanding alarms.

6. Use the Node B terminal to set the Micro Node B communication state to

online (release the configuration rights). This re-enables A1353-UR OMC-Rmanagement.

7. Use the Node B terminal to set the Micro Node B state to unlocked.


8. Contact the A1353-UR OMC-R for confirmation of site status and examinetest calls for the final check.



11. Close the bottom section of the front protective cover on the Micro NodeB, and lock it.



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1.4 Replace ACCO

The ACCO is located inside the COBO and contains the AC lightning protection.To replace the lightning protection, you must replace the entire ACCO board.

For detailed information on this unit, refer to ACCO in the Evolium A9112

Micro Node B Hardware Description.


You must have:


Allen key for COBO hatch

TORX and Pozidriv screwdriver







L

PE

N

L L

L

PE PE

PE

N N

N

L

L

N

N Fan

Fuses BTS(Node B)T2,5A

Fuses FanT1,25A

AC Mains in

AC Out toMicro Node B

X402

X401

X400

Figure 4: ACCO Layout


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1.4.3 Remove ACCO

Equipment Shock HazardPossible death or serious physical harm to personnel and damage to equipmentcan result if power to the equipment is not shut down.

To remove the ACCO RIT:

1. If applicable, open the front protective cover on the Micro Node B until thefront cover is fastened with the magnetic clip to access the COBO.



4. Note MO states and alarms.



7. Switch the:

AC power supply OFF to the COBO

SSCsupply OFF to the COBO, if appropriate.

8. Disconnect the AC power connections from the AC Mains In clamp strip,

carefully noting their positions for reconnection.

9. If applicable, repeat step 8for the AC power connections to the top fan.

10. Unplug the AC connector that is hard-wired to the ACCO and plugged intothe bottom of the Micro Node B through the top side of the COBO.

11. Remove the four screws from the corners of the ACCO and remove theboard from the COBO.

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1.4.4 Replace ACCO

To replace the ACCO RIT:

1. Insert the replacement ACCO and replace the four screws securing itto the COBO.

2. Plug the AC connector that is hard-wired to the ACCO into the bottom of theMicro Node B through the top side of the COBO.

3. If applicable, reconnect the AC power to the top fan.

4. Reconnect the AC power connections to the AC Mains In clamp strip.

5. .Switch the:

AC power supply ON to the COBO

SSCsupply ON to the COBO, if appropriate.

6. Wait until the green LED PS_OK and yellow LED OP are lit up. If poweris on and OK, the Micro Node B is operational.


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1.4.5 Final Checks


2. Use the Node B terminal to display the states of all the modules and allthe outstanding alarms.




5. Contact the A1353-UR OMC-R for confirmation of site status and examinetest calls for the final check.






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1.5 Replace MCON

The MCON is located inside the COBO.

For detailed information on this unit, refer to MCON in the Evolium A9112Micro Node B Hardware Description.

Heavy EquipmentThe Micro Node B weighs 25 kg. Injury to personnel and damage to equipmentcan result if it is dropped or otherwise mishandled.Use suitable equipment to lift the Micro Node B. Do NOT lift it until it isproperly supported.


You must have:

A small flathead screwdriver



A TORX screwdriver

Equipment suitable for lifting the Micro Node B housing






All telecommunications resources are lost when the Micro Node is locked.

X320

X202

OM_TR

Fault

OP

GND

X102

X302

X303 E1 P1/P2 X101

X200

X321

X322 E1 P3/P4

X106X107

X105

X104

X103

PS_OK

X203

X100

E1 P1

E1 P2

E1 P3

E1 P4

Ant. Tilt

RX

T

X

GN

D

X313 X327

X310

X311

X312

X314

X315

X316

75

Ohm120

75Ohm120

UMTS

Frame

Trace

CLX

Cal.

PMS

COBO Ext.Alarm 7+8

Ext.Alarm 5+6

Ext.Alarm 3+4

Ext.Alarm 1+2

MMI

Link M_OKX204

Door

switch

Figure 5: MCON Layout


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1.5.3 Prepare MCON Removal

Equipment Shock HazardPossible death or serious physical harm to personnel and damage to equipmentcan result if power to the equipment is not shut down.

Before removing the MCON RIT:

1. If applicable, open the front protective cover on the Micro Node B completelyuntil the front cover is fastened by the magnetic clip to access the COBO.

2. Loosen the retaining bolts on the front cover of the COBO and removethe cover from the COBO base.


4. Use the Node B terminal to set the Micro Node B communication state to

offline (allocation of configuration rights). This prohibits A1353-UR OMC-Rmanagement.


6. Using the Node B terminal, display and note the following information for usein Final Checks (Section 1.5.6) :

Antenna mapping

External alarm mapping

Additional modules (for example: cover, fan, SSC, VSWR)

Micro Node B site name.

7. Switch the:

AC power supply OFF to the Micro Node B

SSCsupply OFF to the Micro Node B, if appropriate.

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1.5.4 Remove MCON

To remove the MCON RIT:

1. Disconnect the E1 cables from ports 1 to 4, carefully noting the position ofeach wire for reconnection.

2. Disconnect the alarm cables from the alarm clamp strips, carefully noting theposition of each wire for reconnection.

3. Detach the GND cable from the MCON board.

4. Remove the AC power plug from the bottom of the Micro Node B.

If the optional fan module is installed in the top of the cover, disconnect thepower and alarm cables to the fan from the COBO.

5. If the protective cover is used, loosen its retaining bolts and remove the frontcover. Otherwise continue with the next step.

6. Remove the antenna connectors at the bottom of the Micro Node B, carefullynoting their positions for reconnection.

7. Place the lifting equipment (manual lift with handwheel and handle, or crane)in position next to the mounting frame and secure it to the Micro Node B.

8. Loosen the bolts that secure the Micro Node B in position. (Two bolts on theCOBO, two bolts on the top of the Micro Node B.)

9. Lift the Micro Node B carefully several centimeters until connectors X100and X320 at the top of the MCON board are free. Then dismount the MicroNode B completely and remove it until the MCON is replaced.

10. Disengage the MCON from the Micro Node B connector at the top edge ofthe board, and remove it from the COBO.


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1.5.5 Replace MCON

To replace the MCON RIT:

1. Insert the replacement MCON in the COBO.

2. Replace the Micro Node on the MOFRA. Then lower the Micro Node

B carefully onto the mounting frame to engage with the Micro Node Bconnector at the top of the MCON.

3. Tighten the four bolts (two at the top of the housing, two attached to COBO)to secure the Micro Node B in position.

4. Detach the lifting equipment from the Micro Node B and pull it clear fromthe mounting frame.

5. Replace the front protective cover in position over the Micro Node B.

6. Connect the GND cable to the MCON board.

7. Reconnect the E1 and alarm cables to the clamp strips.

8. Replace the antenna connectors. Make sure you connect it to the correctconnector.

9. Tighten the screw antenna connector by hand, then shake the cable a little.Using the specific tightening tool, tighten firmly with the torque listed below.

RF Connector Type Torque [Nm]

N 0.7 - 1.1

7/16 25

10. Switch the

AC power supply ON to the COBO.

SSCsupply ON to the COBO, if appropriate.



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1.5.6 Final Checks

1. Using the Node B terminal, update the following as noted in step 6in PrepareMCON Removal.

Antenna mapping

External alarm mapping

Additional modules (for example: Cover, fan, SSC, VSWR)

Micro Node B site name.

2. Using the Node B terminal, update the Remote Inventory EEPROM with thecommissioning (current installation) date.

3. Using the Node B terminal, unlock the Micro Node B.

After this local operation, the user and the password falls back to the initialstate (default keyset). Inform the OMC-R operator to assign the correct key

set to this Node B.Refer to the Evolium A1353-UR OMC-R Administration Handbook.

4. Using the Node B terminal, check that there are no outstanding alarms onthe Micro Node B.




1.6 Replace Fan Cassette

The optional fan cassette is located inside the top of the protective cover (withfan) on the Micro Node B.

For detailed information on this unit. Refer to Top Cover with Fan Cassette inthe Evolium A9112 Micro Node B Hardware Description.


You must have:

A big flathead screwdriver






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There is no loss of telecommunications resources when the fan module isreplaced.

Figure 6: Fan Casette

1.6.3 Replace Fan Cassette

To replace a fan cassette RIT:

1. Unlock the top section of the front protective cover on the Micro Node B,and open it to expose the fan cassette inside.

2. Disconnect the cable coupling of the fan cassette and remove the fan

cassette from the housing; that is, place the flathead screwdriver into oneof the grooves in the middle of the frame of the fan cassette to disengagethe cassette. Simultaneously place the strap at the end of the fan cassetteand pull it out.

3. Replace it with a new cassette, engage it, and connect the cable coupling.

4. Close the top section of the front protective cover on the Micro NodeB and lock it.

5. Unlock the bottom section of the front protective cover on the Micro Node B,open it upwards, and fasten it to the front cover with an installed magneticsnap-on fastening to expose the COBO.

6. Loosen the retaining bolts on the front cover of the COBO and remove the

front cover from the COBO base.



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1.6.4 Final Checks

1. Connect the Node B terminal to the MMI port inside the COBO.

2. Check Micro Node B status.

3. Using the Node B terminal, set the part number in the Micro Node B remote

inventory Additional Module field.





1.7 Replace Top of Cover with Fan

The optional top of cover with fan is located at the top of the protective cover ofthe Micro Node B instead of the normal top cover.

Note: The Micro Node Bs installed in the field can have covers of different colors. It isimportant to select a replacement top of cover with the correct color beforestarting the replacement procedure.

For detailed information on this unit, refer to the section Top Cover with FanCassette in the Evolium A9112 Micro Node B Hardware Description.


You must have:


An Allen key (M4)

Side cutting pliers

Two cable ties, approximately 10 cm in length


communication link cable to connect it to the MMI-ETH port. Refer to

the Evolium Node B NEM-B User Guide for information on how to use

the terminal.


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There is no loss of telecommunications resources when the top of cover withthe fan module is replaced.

Figure 7: Top of Cover with Fan

1.7.3 Remove Top of Cover

To remove the top of cover with fan RIT:

1. Unlock the bottom section of the front protective cover on the Micro Node B,open it upwards, and fasten it to the front cover with the installed magneticsnap-on fastening.

2. Loosen the retaining bolts on the front cover of the COBO and remove

it from the COBO base.

3. Connect the Node B terminal to the MMI-ETH port on the MCON in theCOBO.

4. Using the Node B terminal, note the alarms and the additional modulesettings for the fan hat.

5. Disconnect the couplings of the two cables which connect the COBO andthe top of cover with fan. If secured, cut the cable ties.

6. Loosen the two retaining screws of the front cover of the Micro Node B onboth sides of the cover. Lift up the complete front/bottom/top cover andremove it from the Micro Node B.



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1.7.4 Replace Top of Cover

To replace the top of cover with fan RIT:

1. Cut the cable ties at the inside of the front cover.

2. Loosen the three retaining screws of the top of cover, replace the top of

cover with a new one, and tighten the retaining screws.

3. Secure the two cables of the top of cover with fan module inside the frontcover by using cable ties.

4. Lift up the complete front/bottom/top cover, place it over the Micro Node Band the protective back panel, tighten the retaining screws, and connectthe cable couplings.


1.7.5 Update Remote Inventory

To update the Micro Node B remote inventory:

1. Connect the Node B terminal to the MMI port inside the COBO.

2. Using the Node B terminal, set the part number in the Micro Node B remoteinventory Additional Module field.






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1.8 Replace Site Support Cabinet RITs

The following figure shows the position of the different RITs inside the SSC.

For detailed information on this unit, refer to Site Support Cabinet (SSC) in theEvolium A9112 Micro Node B Hardware Description.

PS3

External Fan Cover

For optional equipment

AC/DC Converter (SSCPS)

SSC Battery (SSCB)

Main Power Switch

AC Connection Field

External Fan (SSCF)

Fan & Heater Internal(SSCFH)

Connector Field(SSCFH)

PS2PS1

Figure 8: SSC, Position of RITs

Heavy EquipmentThe battery unit weighs 32 kg. Injury to personnel and damage to equipmentcan result if it is dropped or otherwise mishandled.Be careful when moving or lifting the battery unit.The battery unit must be handled by two people, one on the right with onehand on the lower side and one on the left with one hand on the front doorpanel handle.

1.8.1 Replace SSC Battery

The RIT part number of the SSC battery is 3BK 25016 AA.

The module can be replaced without switching off the power.


You must have:

A small crosshead screwdriver


Two people to handle the SSCB.


None.



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1.8.1.3 Remove SSCB

To remove the SSCB RIT:

1. Insert the key in the door lock and turn it clockwise to unlock the door. Turnthe doorknob to the release position, and then pull the door open.

2. Press [ Back up ] in the Connector Field. The red LED on the right turns ON.

3. Disconnect the following cables:

Ventilation valve cable

X8 and X9 cables

Temperature sensor cable from its coupling

Ground cable.

Ventilation valve cable

6pole MateNLocksTemperature sensor

cable coupling

Front panel handle

Ground cable(yellow/green)

Distribution clamp

Fuse box coverRetaining screws

X8

X9

Figure 9: SSC, Battery Connections

4. Disconnect both cables connected to X8 and X9.

5. Disconnect (pull apart) the temperature sensor cable coupling.

6. Disconnect the ground cable (yellow/green) on the distribution clamp fromthe bottom right side.

7. Remove the four retaining screws on the front cover of the battery unit.

8. Slide out the battery unit on the rails and then lift it off.


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1.8.1.4 Replace SSCB

To replace the SSCB RIT:

1. Make sure that the back holding clamps are in position. If they are not, thebattery cannot be correctly inserted.

2. Slide in a new charged battery unit on the rails at a 20 angle.

Figure 10: SSC, Installation of Battery Unit

3. Push the battery unit to the back.4. Push the front part down until the battery unit is in a horizontal position.

5. Secure the battery unit to the front panel with four screws and specialwashers.

6. Open the cover of the fuse box on the battery unit and feed the ground cablethrough the rubber nozzle and then close the cover.

7. Reconnect the following cables:

The ground cable to the yellow/green distribution clamp on the right side

on the bottom of the SSC (as disconnected in step 6of "Remove SSCB")

The temperature sensor cable coupling (as disconnected in step 5of"Remove SSCB")

The two 6-pole Mate-N-Locks (these can be used in any order as false

polarity is protected by a mechanical code)

Feed the ventilation valve in the cable entry area through a PG gland

on the bottom and into the free cable screw joint on the battery unit.

Then fasten the screw joint.

8. Press the [ Back up ] button in the Connector Field. The red LED on theright goes OUT.

9. Close and lock the door.

1.8.2 Replace SSC Power Supply

The RIT part number of the SSCPS is 3BK 25011 AA.



You must have a small, pointed, flathead screwdriver.


None.



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1.8.2.3 Replace SSCPS

To replace a SSCPS RIT:


2. Loosen the four retaining screws of the SSCPS to be replaced.

3. Pull out the SSCPS and replace it with a new one.

4. Fasten the retaining screws.

5. Check that the corresponding green LED in the Connector Field is ON. PS1corresponds to POWER SUPPLY 1, PS2 corresponds to POWER SUPPLY2, and PS3 corresponds to CHARGER.

PS2 PS3

Fan test

Connector Field

POWER

SUPPLY 2

CHARGER

MAIN

Back up

LEDs

POWER

SUPPLY 1

Figure 11: SSCPS, LED Location


1.8.3 Replace SSC Fan and Heater

The RIT part number of the internal SSCFH is 3BK 25015 AA.


Very Hot EquipmentThe heating spiral of the SSCFH can become very hot and can cause burns topersonnel if not handled carefully.Exercise caution when handling the SSCFH.


You must have:

A small, pointed, flathead screwdriver

A medium crosshead screwdriver.


None.


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1.8.3.3 Replace SSCFH

To replace the SSCFH RIT:


2. Disconnect the power supply cable and the inner and outer fan cables.

etaining screw ower supp y ca e nner/outer an ca e

Figure 12: SSCFH, Front View

3. Support the SSCFH before removing the two retaining screws (and washers)and then pull it out.

Heating spiral Internal Fan

Outer Fan cable

Figure 13: SSCFH, Internal View

4. Disconnect the outer fan cable wires from the clamps, carefully noting theposition of each for reconnection.

5. Replace the SSCFH with a new one and reconnect the outer fan cablewires to the clamps as noted earlier.

6. Put the new SSCFH in the correct position and fasten it with the tworetaining screws.

7. Reconnect the power supply cable and the inner and outer fan cables as

noted earlier.8. On the Connector Field, press [ FAN-Test ] and check acoustically that the

new fan is running.

9. Press the [ FAN-Test ] again to stop the check.


1.8.4 Replace SSC External Fan

The RIT part number of the SSCF is 3BK 25014 AA.

The module can be replaced without switching off the power. To disconnect theconnection cable, you must first remove the SSCFH.



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You must have:

An M4 single-ended spanner


A medium crosshead screwdriver.


None.

1.8.4.3 Replace SSCF

Very Hot EquipmentThe heating spiral of the SSCFH can become very hot and can cause burns topersonnel if not handled carefully.Exercise caution when handling the SSCFH.

To replace the SSCF RIT:

1. Remove the two retaining screws of the external fan cover at the top ofthe SSC. Lift the front side of this cover and remove it from the lockingdevice at the back.

2. Insert the key in the door lock and turn it clockwise to unlock the door. Turnthe door knob to the release position, and then pull the door open.

3. Disconnect the power supply cable and the inner and outer fan cablesfrom the SSCFH.

4. Support the SSCFH before removing the two retaining screws (and washers)

and then pull it out.

5. Disconnect the outer fan cable wires from the clamps, carefully noting theposition of each for reconnecting the new cable.

6. Feed the outer fan cable through the rubber nozzle at the top of the SSC sothat it can be removed when removing the outer fan.

7. Unscrew the four M4 retaining nuts fastening the outer fan.

8. Remove the outer fan (and cable), replace it with a new one and fasten thenew one with nuts and washers from the old one.


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1.8.4.4 Connect New SSCF

To connect the new SSCF:

1. Feed the new outer fan cable through the rubber nozzle at the top of the SSC.

2. Take the SSCFH and connect the new outer fan cable wires to the clamps asnoted earlier.

3. Put the SSCFH in the correct position and fasten it with the two retainingscrews.

4. Reconnect the power supply cable and the inner and outer fan cables asnoted earlier.

5. On the Connector Field, press [ FAN-Test ] and check that the new fan isrunning.

6. Press the [ FAN-Test ] button again to stop the check.


8. Put the cover of the external fan into the locking device at the top of the SSC

and fasten the front side of the cover with two retaining screws.

1.8.5 Replace SSC Connection Field

The RIT part number of the SSCCF is 3BK 25012 AA.

Hot swapping is not allowed.This module cannot be replaced unless the power is switched off.


You must have:








1.8.5.3 Prepare SSCCF Replacement

To prepare the a SSC Connection Field RIT replacement:

1. Unlock the bottom section of the front protective cover on the Micro Node B,open it upwards, and fasten it to the front cover with the installed magneticsnap-on fastening to expose the COBO.



4. Use the Node B terminal to set the Micro Node B communication state tooffline (allocation of configuration rights). This prohibits A1353-UR OMC-R

management.



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1.8.5.4 Replace SSCCF

To replace a SSC Connection Field RIT:

1. Insert the key in the SSC door lock and turn it clockwise to unlock the door.Turn the door knob to the release position, and then pull the door open.

2. Press [ Back up ] in the Connector Field to activate the red OFF LEDon the right.

3. Turn off the main power switch (position 0).

4. Disconnect all cables connected with the connectors X2, X3, X4, X9, X10,X11, carefully noting the position of each for reconnection.

5. Disconnect all cables connected with the clamps X5, X6, X7, X8, X12 bydisconnecting each discrete wire, carefully noting the position of each wireand each cable for reconnection.

Clamp Group

onnector roup

KRONE

CONNECTOR

X12 X5

X4X3X2

Fantest

CHARGER

MAIN

Back up

OFF

Retaining screw

POWER

SUPPLY 1

POWER

SUPPLY 2

X11X10 X9

X1

X6 X7 X8

Figure 14: SSCCF, Detailed View

6. Remove the six retaining screws at the front plate. Support the front plateand tip it forward.

7. Disconnect the two cables connected at the back of the front plate andremove the front plate.

8. Pull out the electronic part of the SSCCF and replace it with a new one. Makesure that all boards are in their guide rails, then push it fully into the slot.

1.8.5.5 Connect New SSCCFTo connect the new SSCCF RIT:

1. Reconnect the cables of the electronic part of the SSCCF to the back of thefront plate and fasten the front plate with the six retaining screws.

2. Reconnect all cables and wires to the clamps and connectors asdisconnected and noted in steps 4step 5 of "Replace SSCCF".

3. Turn on the main power switch (position 1).

4. If the red backup LED OFF is activated, press [ Back up ] to activate thebackup function (LED OFF is deactivated).

5. On the Micro Node B wait until the green LED PS_OK and yellow LED OPare lit up. If power is on and OK, the Micro Node B is now operational.


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1.8.5.6 Final Checks

1. Use the Node B terminal to check that thecommunication state indicatoris green (Micro Node B is offline). Otherwise, set the Micro Node Bcommunication state to offline (allocation of configuration rights). Thisprohibits A1353-UR OMC-R management.

2. Use the Node B terminal to display the states of all the MOs and allthe outstanding alarms.







8. Close and lock the SSC door.



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1.8.6 Replace SSC Lightning Protector

The RIT part number of the lightning protector is 3BK 25013 AA.

This module is located in the AC connection field at the bottom of the SSC. Themodule can be replaced without switching off the power.

1.8.6.1 Tools and MaterialsYou must have a small crosshead screwdriver.


None.

1.8.6.3 Replace Lightning Protector

To replace a lightning protector module:


2. Remove the four retaining screws on the external cover of the AC connectorfield at the bottom of the SSC, and then lift it off.

The following figure shows the position of the lightning protectors.

N

Lightning Protectors

Top Internal View

L1

PE

Figure 15: SSC, AC Connection Field

3. A red indicator shows which lightning protector must be removed. Pull outthis lightning protector and replace it with a new one.

4. Replace the external cover of the AC connector Field and tighten theretaining screws.



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2 Preventive Maintenance


This section describes the Micro Node B preventive maintenance procedures.


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2.1 Recommended Checks

The following table lists the recommended checks that are required for correctMicro Node B operation.

Time Interval Task Impact on System Traffic

* Check lightning protection for SSC (SSCLP). None.

1 year Inspect antenna and Micro Node B external casing. None.

1 year Inspect the batteries for corrosion and damage, andmeasure the battery voltage and temperature.

None.

1 year** Adjust local MSUMU clock None.

* Each time an intervention is performed on the SSC.

**

- Adjust local oscillator frequency if local oscillator is used.

- Adjustment not required if PCM sources are used.

Table 1: Preventive Maintenance, Recommended Checks

2.2 Adjust Local MSUMU Clock

2.2.1 Checks

Check the following:

The MSUMU has had continuous power supply for the previous two hours.

The frequency counter has had the warm-up period specified by the

manufacturer.

The ambient temperature remains constant during the adjustment

procedure.



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2.2.2 Tools and Impacts



A frequency counter with a resolution of 0.001 Hz at 2.16 MHz (Fluke

PM6685R, 3BK25198AAAA)

A BNC cable for connecting the frequency counter to the Micro Node B

A Node B terminal and an Ethernet communication link cable (100Base TX

category5/UTP Cross) to connect it to the MMI-ETH port. The MMI-ETH

port is located on the front panel of the MSUMU.Refer to the Evolium Node B NEM-B User Guide for information on how touse the terminal.


None.

2.2.3 Adjust Clock

The clock adjustment is applicable when the Node B clock is in free runningmode only.

2.2.3.1 Connect Frequency Counter

To connect the frequency counter:

1. Unlock the bottom section of the front protective cover on the Micro Node B,

open it upwards, and fasten it to the front cover with the installed magneticsnap-on fastening to expose the COBO.



4. Install and start the frequency counter.

5. Connect the frequency counter to the clock output connector X102 onMCON.


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2.2.3.2 Adjust Local MSUMU Clock

To adjust the local MSUMU clock:

1. Open the NEM-B Clock Configuration window and note the CurrentClock Synchronization value. Set the Clock Synchronization mode tofree-running.

2. On the frequency counter:

Select a high input impedance (1 MOhm).

Select a long measurement time (at least 10 seconds).

Choose a high sensitivity level (about 2 V).

Check that the frequency counter warm-up is sufficient (minimum of 10minutes).

3. Wait until triggering occurs on the input signal port of the frequency counter.Then proceed as follows:

If the indicated frequency is between 2 166 666.658 Hz and 2 166

666.676 Hz, go to step 5.

If not, an adjustment is necessary. Go to step 4.

4. Use the Node B terminal (see theEvolium Node B NEM-B User Guide) toadjust the MBS clock for a frequency of between 2 166 666.658 Hz and2 166 666.676 Hz.

5. When the adjustment is finished, open the Clock Configurationwindow andreset the Clock Synchronization to its initial value as noted in step 1.

6. Disconnect the frequency counter from MCON.

7. Disconnect the MMI cable from the MCON and remove the terminal.

8. Replace the COBO front cover in position over the base, and tighten theretaining bolts.




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2.3 Recommended Replacements

The following item replacements are recommended, but not mandatory,according to the life expectancy provided by the component suppliers. Failureof these modules does not directly impact Micro Node B operations.

Time Interval Task Impact on System Traffic

4-6 years Replace Micro Node B optional fan cassette:

Every 4 years, if ambient temperature > 25 C

Every 6 years, if ambient temperature


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Evolium A9112 Micro Node B Maintenance Handbook 211150000e04

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