Nortel 920-551 Exam : GSM BTS 18000 Installation and Commissioning

  • Exam Code: 920-551
  • Exam Name: GSM BTS 18000 Installation and Commissioning
  • Updated: Aug 31, 2026
  • Q & A: 75 Questions and Answers

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Nortel 920-551 Exam Syllabus Topics:

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

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