HFC network monitoring and measurement systems
Modern cable TV networks have a lot of devices working in various technologies (satellite transmission, fiberoptic transmission, digital TV, data transmission, powering systems), which make high quality broadband signal transmission possible. The effective use of this potential is connected with the necessary implementation of the cable TV monitoring and management system. The basic monitoring and management functions are:
The advantages of using monitoring and management systems are:
Care of transmitted signal quality is also very important, both for downstream and upstream and for interactive services in the return path. Technical staff, supervising the cable network, must have a proper set of measurement devices which make possible:
Additionally, measurement devices should have the following features:
- the management of crisis situations
- service and equipment configuration management
- the assessment of network operation
- the management of subsystems belonging to monitoring and management systems
- management system access authorization.
The advantages of using monitoring and management systems are:
- continuous automatic device parameter control which allows earlier reaction to possible failures and decreases failure probability
- the reduction of data transmission downtime
- increased network reliability resulting in satisfied subscribers and bussiness maintenace and development
- system service cost reduction due to remote management and control
- the possibility of continuous system quality monitoring by the measurement of crucial parameters.
Care of transmitted signal quality is also very important, both for downstream and upstream and for interactive services in the return path. Technical staff, supervising the cable network, must have a proper set of measurement devices which make possible:
- network activation and adjustment during its deployment
- continuous control of the system vital parameters
- in-service (without service interruption) measurements and control
- cable network maintenance and failure removal
- acquisition and storage of all measurement results for further processing in dedicated software
Additionally, measurement devices should have the following features:
- very high measurement reliability and accuracy
- flexibility responding to the cable network needs
- easy operation
- high immunity to bad weather conditions in which the measurements and maintenance activities are performed
System scheme
System elements
- HEADENDS CONTROLERS
- SOFTWARE OF MANAGEMENT AND MONITORING
- ANTENNAS AND CATV METERS
- OPTICAL POWER METERS
- CATV ANALYSERS
- SOFTWARE SYSTEMS FOR MANAGEMENT OF METER SYSTEMS
