"Brian Reay" wrote in message
...

"Airy R. Bean" wrote in message
...
ISTR that the Plesiochronous Digital Hierarchy of BT ran
via a single master oscillator.


Plesiochronous refers to a system with signals having a common data rate
(within defined limits) which are sychronised to different clocks.
Sometimes
referred tp as 'nearly synchronised'.

ie no 'master clock', with or without a remontoire ;-).

In a plesiochronous switched data system, the signals may be synchronised
at a given instant permitting switching withourt loss of frames but, when
the signals drift apart, the switches must compensate by a process known
as
'frame slip'- not required in a system synchronised to a master
oscillator.

I've no doubt you will respond with 'rubbish' etc. but I invite the others
on the NG to look up the term and decide who is correct.


Yep, checks out.

Gareth downed in one. Will he have the sense to crawl back under his stone
or start a personal attack?

Bayes theory points to the latter.

Next round please.




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