920-551 exam dumps

Nortel 920-551 Value Package

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  • Exam Code: 920-551
  • Exam Name: GSM BTS 18000 Installation and Commissioning
  • No. of Questions: 75 Questions and Answers
  • Updated: Aug 07, 2026

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  • Total Questions: 75
  • Updated on: Aug 07, 2026
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  • Total Questions: 75
  • Updated on: Aug 07, 2026
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  • Total Questions: 75
  • Updated on: Aug 07, 2026
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Nortel 920-551 Exam Syllabus Topics:

SectionObjectives
Power and Transmission Systems- Power system setup
  • 1. DC power distribution
    • 2. Backup power integration
      - Transmission configuration
      • 1. Backhaul connectivity setup
        • 2. E1/Transmission link configuration
          Operations, Maintenance, and Troubleshooting- Alarm management
          • 1. Fault detection and interpretation
            • 2. Alarm clearing procedures
              - Maintenance procedures
              • 1. Hardware replacement guidelines
                • 2. Preventive maintenance tasks
                  GSM BTS 18000 System Overview- Architecture of GSM BTS 18000
                  • 1. Base station components overview
                    • 2. BTS subsystems and interfaces
                      - GSM network fundamentals
                      • 1. Radio access network principles
                        • 2. GSM channel structure basics
                          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
                                  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

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