Nortel 920-551 : GSM BTS 18000 Installation and Commissioning

920-551 real exams

Exam Code: 920-551

Exam Name: GSM BTS 18000 Installation and Commissioning

Updated: Oct 28, 2026

Q & A: 75 Questions and Answers

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Nortel 920-551 Exam Syllabus Topics:

SectionObjectives
Operations, Maintenance, and Troubleshooting- Maintenance procedures
  • 1. Preventive maintenance tasks
    • 2. Hardware replacement guidelines
      - Alarm management
      • 1. Fault detection and interpretation
        • 2. Alarm clearing procedures
          GSM BTS 18000 System Overview- GSM network fundamentals
          • 1. Radio access network principles
            • 2. GSM channel structure basics
              - Architecture of GSM BTS 18000
              • 1. BTS subsystems and interfaces
                • 2. Base station components overview
                  Commissioning and Configuration- Software loading and initialization
                  • 1. Initial system boot and checks
                    • 2. BTS software installation process
                      - Radio configuration
                      • 1. TRX configuration and activation
                        • 2. Frequency planning basics
                          Installation Procedures- Site preparation
                          • 1. Rack and cabinet installation requirements
                            • 2. Environmental and grounding considerations
                              - Hardware installation
                              • 1. BTS module installation steps
                                • 2. Cabling and connector setup
                                  Power and Transmission Systems- Power system setup
                                  • 1. Backup power integration
                                    • 2. DC power distribution
                                      - Transmission configuration
                                      • 1. Backhaul connectivity setup
                                        • 2. E1/Transmission link configuration

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