Exercises GSM RBS 2106/2206

Installation Verification

Table of Contents Topic Page

CHAPTER 1: RBS 2106/2206 OVERVIEW...........................................1

EXERCISE 1...................................................................................................................1

CHAPTER 2: RBS AND BBS FUNCTIONS AND CONFIGURATIONS...............................................................................5

EXERCISE 2...................................................................................................................5

CHAPTER 3: SAFETY PRECAUTIONS AND INSTALLATION VERIFICATION TOOLS.........................................................................9

EXERCISE 3...................................................................................................................9

CHAPTER 4: ANTENNA SYSTEM TESTS.........................................11

EXERCISE 4.................................................................................................................11

CHAPTER 5: SITE INSTALLATION VERIFICATION.........................15

EXERCISE 5.1 – RBS 2106.........................................................................................15

EXERCISE 5.2 – RBS 2206.........................................................................................20

CHAPTER 6: SITE INTEGRATION.....................................................25

EXERCISE 6.................................................................................................................25

CHAPTER 7: FAULT HANDLING.......................................................31

EXERCISE 7.1..............................................................................................................31 EXERCISE 7.2..............................................................................................................32

CHAPTER 1: RBS 2106/2206 OVERVIEW

EXERCISE 1

For questions 1 through 4, complete by circling the correct answer.

1. Which of the following elements does not belong to the Switching System (SS)?

a) AUC

b) EIR

c) TRC

d) HLR

2. The _____ provides all the control functions and physical links between the MSC and the BTS.

a) BSC

b) ILR

c) OSS

d) GMSC

3. The _____ is the functional entity from which the network operator monitors and controls the system.

a) BTS

b) SS

c) VLR

d) OSS

4. The RBS 2106 has a maximum capacity of how many transceivers?

a) 12

b) 24

c) 16

d) 8

5. In the following diagram, complete the missing labels of the RBS 2106:

6. In the following diagram, complete the missing labels of the RBS 2206:

CHAPTER 2: RBS AND BBS FUNCTIONS AND CONFIGURATIONS

EXERCISE 2

1. One of the functions of the RBS is to handle the radio interface with the mobile station (circle the correct answer).

a) True

b) False

2. In the following figure, draw the paths of the cooling air from each of the three fans in the combined climate unit of the RBS 2106.

3. The following figure shows the power system for which RBS?

Answer: _________________________________________

4. The following figure shows what RBS component?

Answer: _________________________________________

5. The following figure shows what type of CDU/antenna configuration?

Answer: ___________________________________________

6. The following figure shows what type of CDU/antenna configuration?

Answer: ___________________________________________

7. The following figure shows which type of configuration below (circle the correct answer):

a) G9deht_3.6(5)\a

b) F9de_2.4 (E-GSM) and F18d_2.4 (GSM 1800)

c) F9de_2.8 (E-GSM) and F18d_2.8 (GSM 1800)

d) F9det_2.6 (E-GSM) and F18dt_2.6 (GSM 1800)

CHAPTER 3: SAFETY PRECAUTIONS AND TEST TOOLS

EXERCISE 3

1. The following figure is the symbol for what (circle the correct answer)?

a) Don’t feed the animals warning

b) ESD warning

c) Radio Frequency (RF) warning

d) Hazard warning

2. You see the following warning:

What is (are) the possible result(s) if this warning is neglected?

a) Likely, a fatal accident may occur

b) Likely, a slight burn may occur

c) Likely, nothing serious will happen

d) Likely, you’ll have the power to heal others

3. The following tool:

a) Is used to discharge electrostatic voltage

b) Should be connected to earth

c) Contains a resistor with an ohmic value greater than 1 MΩ

d) All of the above

4. When working with ladders, which of the following is correct procedure?

a) Always climb the ladder facing it.

b) Always keep two points of contact (two feet, two hands, or one hand and one foot).

c) When climbing up on a roof, the ladder should never extend above the eaves.

d) None of the above

5. A multimeter measures:

a) Height, width, depth

b) Length of time, ESD, and ohmic value

c) Voltage, current, resistance

d) None of the above

6. The Anritsu Site Master is used for verifying of:

a) BBS 2000

b) RBS 2206/2106

c) Distribution Frame

d) Antenna System

CHAPTER 4: ANTENNA SYSTEM TESTS

EXERCISE 4

Preparation

In the following exercise, you will be verifying the previously installed RBS antenna system for a given site. The exercise will

cover Distance To Fault (DTF) and Standing Wave Radio (SWR) tests and related procedures.

The following resources/tools will be needed to complete this exercise:

• Anritsu Site Master (model S331C recommended)

• Precision Open/Short/Load (for Site Master calibration)

• Laptop/PC with Site Master software

• Work Order (located on the following page)

• Test Record for Antenna System Tests (located on the last page of this exercise)

• Checklist (located on the last page of this exercise)

• RBS 2106 and 2206 Installation and Integration Manuals, which include:

– Preconditions

– Work Process (flowchart)

– Installation Verification procedures

Procedure

1. Locate the correct procedures for verifying the antenna system in the manual(s).

2. Review the Work Order (following page) and test preconditions.

3. Follow the Work Process precisely, and conduct both DTF and SWR tests.

4. After completing the antenna system tests, complete the Test Record and Checklist. Make sure the instructor sees your results.

5. Be prepared to discuss your results at the end of this exercise.

Work Order General Information

Work area: DALLAS 01

Cause of this Work Order: Newly-installed RBS antenna system needs to be tested for proper installation.

Identification

Work Order Id: DLS 78241

Work Order Issued by: OMC Department

Change status (Time):

Site id: D01

Site name: DALLAS 400

Work order priority: P1

Alarm time:

Alarm slogan:

Fault code subsystem:

Work Order History

Work Order escalated from: N/A

Comments: Perform DTF, SWR and other applicable tests as necessary.

Task Description

Trouble ticket: -90324

Task title: ANTENNA SYSTEM TESTS

Time

First start (Time):

Last start (Time):

Finished at the latest (Time):

Reporting Results

How to report results: Immediately complete Test Record and Checklist, and submit to OMC.

References

System documentation:

Alarm Printout:

Check the following: OK

1. Are all outdoor antenna system connectors covered with sealing tape?

2. Is the Test Record completed?

3. Is the Site Installation Documentation complete with the Test Record and Test Record supplements (if necessary)?

CHAPTER 5: SITE INSTALLATION VERIFICATIONS

In the following exercises, you will be verifying a previously installed RBS cabinet. The exercise will cover cable inspection, switching on the RBS, setting IDB parameters, reading fault status, various installation verifications, and related procedures.

Exercise 5.1 will be for the RBS 2106; Exercise 5.2 will be for the RBS 2206. The instructor will assign you/your team to the RBS model you will be verifying. If there is time allowed, you will be conducting installation verifications on both models.

EXERCISE 5.1 – RBS 2106

Preparation

The following resources/tools will be needed to complete this exercise:

• Multimeter

• ESD wrist strap

• Operation and Maintenance Terminal (OMT)

• System Verification Set (OMT software, interface cable, and manual)

• Diskette (for IDB back-up)

• Work Order (located on the following page)

• Completed “Test Record for Antenna System Tests” (Exercise 4)

• Test Record for Stand Alone Tests (located on the second to the last page of Exercise 5.1)

• Checklist (located on the last page of Exercise 5.1)

• RBS 2106 Installation and Integration Manual, which includes:

– Preconditions

– Work Process (flowchart)

– Installation verification procedures

Procedure

1. Locate the correct procedures for verifying the RBS 2106 site installation in the Installation and Integration manual.

2. Review the Work Order (following page) and verify preconditions.

3. Follow the Work Process precisely, and conduct all procedures and installation verifications.

4. After completing the antenna system tests, complete the Test Record and Checklist. Make sure the instructor sees your results.

5. Be prepared to discuss your results at the end of this exercise.

Test Record

Checklist Check the following:

1. Are all fault indicators off?

2. Is the Local indicator on the DXU off (or flashing if no PCM link is connected)?

3. Are all other indicators on the DXU off?

4. Are the Local indicators on all dTRUs off (or flashing if no PCM link is connected)?

5. Are all RF off indicators on all dTRUs on?

6. Are all other indicators on all dTRUs off?

7. Are all other green operational indicators on?

8. Are all yellow indicators off?

9. Has all installation verification equipment been disconnected from the RBS?

10. Is the cabinet dry inside?

11. Are the inside and the outside of the cabinet free of damage?

12. Are all cables free of damage?

13. Are all EMC sealants and cable penetrations intact?

14. Is a back-up copy of the IDB saved on a disk?

15. Are all tools accounted for?

16. Is the cabinet door locked?

17. Is the external air intake free of obstructions?

18. Is all necessary paperwork completed?

CHAPTER 6: SITE INTEGRATION

EXERCISE 6

Preparation

In the following exercise, you will be integrating the RBS with the BSC and then testing to verify the integration. The exercise will cover bringing the RBS into service and making test calls on the air interface. The instructor will assign you/your team to the RBS model you will be integrating/testing.

The following resources/tools will be needed to complete this exercise:

• TEMS

• Laptop/PC with TEMS software

• Work Order (located after the Procedure section)

• Completed “Test Record for Antenna System Tests” (Exercise 4)

• Completed “Test Record for Site Installation Tests” (Exercise 5.1 or 5.2)

• Test Record for RBS Site Integration (located after the Work Order)

• Checklist (located on the second to the last page of this exercise)

• Network Element Acceptance Certificate (located on the last page of this exercise)

• RBS 2106 and 2206 Installation and Integration Manuals, which include:

– Preconditions at the RBS and the BSC – Work Process (flowchart) – Installation verification procedures

Procedure

1. Locate the correct procedures for verifying the RBS site integration in the Installation and Integration manual for your assigned RBS.

2. Review the Work Order (following page) and installation verification preconditions.

3. Follow the Work Process precisely, and conduct all site integration tests.

4. After completing the site integration tests, complete the Test Record, Checklist, and the Network Element Acceptance Certificate. Make sure the instructor sees your results.

5. Be prepared to discuss your results at the end of this exercise.

Work Order General Information

Work area: DALLAS 01

Cause of this Work Order: Newly-installed and verifyed RBS needs to be integrated with the BSC and test calls made.

Identification

Work Order Id: DLS 78243

Work Order Issued by: OMC Department

Change status (Time):

Site id: D01

Site name: DALLAS 400

Work order priority: P1

Alarm time:

Alarm slogan:

Fault code subsystem:

Work Order History

Work Order escalated from: N/A

Comments: Perform all necessary tests to verify RBS is integrated correctly.

Task Description

Trouble ticket: -90327

Task title: SITE INTEGRATION

Time

First start (Time):

Last start (Time):

Finished at the latest (Time):

Reporting Results

How to report results: Immediately complete Test Record, Checklist, and Network Element Acceptance Certificate, and submit to OMC.

References

System documentation:

Alarm Printout:

Test Record

Checklist Check the following:

1. Are all green operational indicators on?

2. Are all other indicators off?

3. Has all installation verification equipment been disconnected from the RBS?

4. Is the RBS cabinet dry inside?

5. Are the inside and the outside of the cabinet free of damage?

6. Is the RBS free from foreign objects?

7. Are all cables free of damage?

8. Is a back-up copy of the IDB saved on a disk?

9. Have all tools been accounted for?

10. Is the external air intake free from obstructions?

11. Has the RBS door been locked?

12. Is all necessary paperwork completed?

CHAPTER 7: FAULT HANDLING

EXERCISE 7.1

1. A flashing green optical indicator means what?

a) The unit is working properly.

b) The unit is faulty.

c) Wait, activity is in progress.

d) It’s time to go home.

2. Any version of the OMT software will support the RBS 2106 and 2206.

a) True

b) False

3. What is the corrective action(s) to take if the RBS stops operating while running on battery power?

Answer: ______________________________________

______________________________________

4. What is the corrective action(s) to take if there is no communication between the DXU and the dTRU?

Answer: ______________________________________

______________________________________

EXERCISE 7.2

In the following exercise, perform the corrective action on the assigned RBS:

While troubleshooting the RBS, you receive the following dTRU fault:

Fault No.: SO TRXC 12A: 13

1. Review and take any necessary corrective actions on the fault.

2. Complete a Trouble Report (opposite page).

3. If necessary, complete a Repair Delivery Note (below) for the faulty unit.

4. Be prepared to review your results with the instructor.