In message <[email protected]>, dated
Fri, 21 Nov 2014, Joe Randolph <[email protected]> writes:
While compliance with these standards is not a regulatory requirement,
some manufacturers (and their customers) feel more comfortable knowing
that a product meets these requirements. In my judgment, the
requirements in the TS-103 021 series are pretty reasonable, especially
compared to the some of the per-country national requirements that were
mandatory prior to the implementation of the TTE directive in 2000.
So, it might be appropriate to at least review the requirements in the
TS 103 021 series and satisfy yourself that your product complies with
those requirements. However, that would be a purely voluntary activity
because there is no regulatory requirement to meet those requirements.
If your product is a listen-only device that only looks for ringing,
only a small subset of the requirements in the TS 103 021 series would
be relevant, such as the impedance presented to ring signals and the
applicable thresholds for ring detection. I think you will find the
requirements to be easy to meet.
I think this is very good advice.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
When I turn my back on the sun, it's to look for a rainbow
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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