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- 1.Proposed revision of Recommendation M.24 (new M.34)
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- INFORMATION FOR PERFORMANCE MONITORING ON
- INTERNATIONAL TRANSMISSION SYSTEMS AND EQUIPMENT
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- The following text is proposed to replace the first alinea of 2.3.
- The text under "2.3.1 Uses of performance monitoring data," and all
- following text, remains unchanged.
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- "2.3 Monitoring strategies
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- In general, failures of equipment should be detected by continuous
- automatic performance monitoring, as opposed to monitoring or testing involving
- human intervention. This capability, however, implies that the performance
- monitor feature is built into the digital terminal system, or dedicated external
- performance monitor equipment is provided for each termination. An alternative
- to providing dedicated external performance monitor equipment is to provide
- remote access to protected monitor points and share external performance
- monitoring equipment with a number of terminal systems. This alternative of shared,
- but automatic monitoring is considered nearly continuous. Continuous (or nearly
- continuous) monitoring is often made feasible by advances in technology, and
- by virtue of the large number of circuits affected or jeopardized by a
- transmission system failure. While continuous performance monitoring capabilities
- built into transmission systems and terminals are clearly the preferred
- implementation for new systems, the concept of nearly continuous monitoring offers an
- efficient and cost effective means of providing automatic monitoring
- capabilities for existing digital systems not having the built-in capabilities. In
- addition, continuous (or nearly continuous) monitoring is faster, more reliable, and
- less labour intensive than manual monitoring strategies."
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