what is synchronised number system
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Answer:
In an alternating current electric power system, synchronization is the process of matching the speed and frequency of a generator or other source to a running network. ... If two segments of a grid are disconnected, they cannot exchange AC power again until they are brought back into exact synchronization.
Many services running on modern digital telecommunications networks require accurate synchronization for correct operation. For example, if telephone exchanges are not synchronized, then slips will occur and degrade performance. Telecommunication networks rely on the use of highly accurate primary reference clocks which are distributed network-wide using synchronization links and synchronization supply units.
Ideally, clocks in a telecommunications network are synchronous, controlled to run at identical rates, or at the same mean rate with a fixed relative phase displacement, within a specified limited range. However, they may be mesochronous in practice. In common usage, mesochronous networks are often described as synchronous.