Allan -
Thanks for your efforts in summarizing the discussion.
Adding to the final segment of your conclusion a term "Peripheral" (applies
to Network equipment not to Terminal/Peripheral equipment) would, I believe,
further clarify the demarcation between applicability of the EN 300 386-2
vs. CISPR 24.
Vitaly Gorodetsky
The suitability of this information for making decision is solely with the
reader
-----Original Message-----
From: Allan G. Carr [SMTP:e...@agctel.co.uk]
Sent: Monday, November 13, 2000 7:07 AM
To: emc-p...@ieee.org
Cc: H.T. Hildering
Subject: Re: FW: Compliance of a USB telephone
Theo
I thought I should post the consensus of our discussion on the
applicability of the R&TTE Directive for the avoidance of doubt by other
readers of this newsgroup.
The R&TTE applies to TERMINAL equipment - that is equipment
connected on the subscribers side of the NTTP (Network Test and Terminal
Point). Therefore a modem in a users home is covered by the R&TTE as would
a modem used by a company that does not have a telecommunications operators
licence.
It does not apply to NETWORK equipment - that is equipment on the
network side of the NTTP which is owned by the PTO (licensed Public
Telecommunications Operator). Therefore an ISP's (Internet Service
Provider's) modem, typically rack mounted and sited in the local exchange,
is Network equipment and is not within the scope of the R&TTE.
This difference may seem academic as there are no Telecommunications
Terminal Equipment specifications designated under the R&TTE Directive and
safety to EN 60 950 applies on both sides of the NTTP but the EMC
specifications are slightly different.
EN 300 386-2 "Electromagnetic compatibility and Radio spectrum
Matters (ERM); Telecommunication network equipment; Electro-Magnetic
Compatibility (EMC) requirements; Part 2: Product family standard" applies
to Network equipment but not to Terminal equipment.
Hope this helps
Allan
__________________
In article <EDFA411E5E4AD2118D6F00A0C99E4BAC01DF752E@FLBOCEXU02
<mailto:EDFA411E5E4AD2118D6F00A0C99E4BAC01DF752E@FLBOCEXU02> >,
wo...@sensormatic.com <mailto:wo...@sensormatic.com> writes
>
>Forwarding a reply
>
>----------
>From: H.T. Hildering [SMTP:h.t.hilder...@ktl.com]
<mailto:[SMTP:h.t.hilder...@ktl.com]>
><mailto:[SMTP:h.t.hilder...@ktl.com]
<mailto:[SMTP:h.t.hilder...@ktl.com]> >
>Sent: Friday, November 10, 2000 11:49 AM
>To: wo...@sensormatic.com <mailto:wo...@sensormatic.com>
<mailto:wo...@sensormatic.com <mailto:wo...@sensormatic.com> >
>Subject: RE: Compliance of a USB telephone
>
>Sorry for my late reply.
>For applying the R&TTE directive, the intended use is the
crux. I wander or
>it is possible nowadays - if computers are connected to the
internet- , to
>deny that it is not intended for communication using the
internet; for
>example using Voice over IP!
>I would say that every computer (and connected equipment),
that can
>communicate to the internet is falling under the scope of
the R&TTE.
>Consider for yourself what is stated in the R&TTE
directive:
>"telecommunications terminal equipment" means a product
enabling
>communication or a relevant component thereof which is
intended to be
>connected directly or indirectly by any means whatsoever to
interfaces of
>public telecommunications networks (that is to say,
telecommunications
>networks used wholly or partly for the provision of
publicly available
>telecommunications services);
>Only when it is IMPOSSIBLE to reach a public network, the
R&TTE is not
>applicable.
>The consequence for the USB telephone is that there are no
restrictions on
>the power voltage (as stated in the LVD), so the telephone
must fully comply
>with all the requirements as mentioned in the safety
directive(for example
>acoustical shock)
>
>Best regards,
>Theo Hildering
>KTL
>
>
>
>-----Original Message-----
>From: owner-emc-p...@ieee.org
<mailto:owner-emc-p...@ieee.org> <mailto:owner-emc-p...@ieee.org
<mailto:owner-emc-p...@ieee.org> >
>[mailto:owner-emc-p...@ieee.org]
<mailto:[mailto:owner-emc-p...@ieee.org]>
<mailto:[mailto:owner-emc-p...@ieee.org]
<mailto:[mailto:owner-emc-p...@ieee.org]> >
>On Behalf Of
>wo...@sensormatic.com <mailto:wo...@sensormatic.com
<mailto:wo...@sensormatic.com> >
>Sent: 02 November 2000 19:29
>To: ico...@itl.co.il; <mailto:ico...@itl.co.il;>
<mailto:ico...@itl.co.il; <mailto:ico...@itl.co.il;> > emc-p...@ieee.org
<mailto:emc-p...@ieee.org>
><mailto:emc-p...@ieee.org <mailto:emc-p...@ieee.org> >
>Subject: RE: Compliance of a USB telephone
>
>
>Let me see if I understand this product. It is a telephone
like device that
>is solely intended to be connected to the USB port of a PC
and it is not
>intended to be connected to the telephone network.
>If this is true, then no telephone standards, regulations
or directives
>apply. Only the EMC directive applies in the EU. The RTTE
directive does not
>apply since the device is not intended to be connected to
the telephone
>network. The LVD does not apply since the source voltage is
too low.
>Compliance with safety requirements of EN60950 is
sufficient to show due
>diligence for the Liability Directive and General Product
Safety Directive.
>
>
> > Dear Group
> >
> > We are testing an PC telephone unit!
> >
> > It is a telephone terminal unit that
connects to the USB port of
>the PC from
> > which it receives power. There is no
other connection, just the
>USB.
> >
> > Clearly this unit must comply with EMC
requirements. Safety
>requirements are
> > not mandatory but clearly they are
recommended to be performed
>for
>UL1950
> > for the US and EN60950 for Europe.
> >
> > Two questions:
> >
> > 1) What about Part 68 in the US? Since
unit is not directly
>connected to the
> > PSTN officially it is exempt from the
standard. (Acoustics tests
>are covered
> > under UL1950)
> >
> > 2) What about RTTE directive in Europe?
There is no standard you
>can test
> > for. All of TBR 21 tests are not
applicable.
> >
> > Thanks
> > Ilan
> >
> >
----------------------------------------------------
> > Ilan Cohen
> > Manager, Telecom Division
> > I.T.L (PRODUCT TESTING) Ltd.
> > 26 Hacharoshet St, POB 211, Or Yehuda,
Israel.
> > Tel 972-3-5339022, Fax 972-3-5339019
> > ico...@itl.co.il
<mailto:ico...@itl.co.il> <mailto:ico...@itl.co.il
<mailto:ico...@itl.co.il> > , website:
>http://www.itl.co.il <http://www.itl.co.il
<http://www.itl.co.il> >
> >
----------------------------------------------------
> >
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--
Allan G.Carr B.Sc.(Elec.Eng) AMIEE | AGC-Tel Consultants Ltd
Telecommunications Consultant | Tel: +44(0)141-956-2506
European Approvals Specialist | Fax: +44(0)141-956-5347
62 Crawford Road, Milngavie | Voice Mail:
+44(0)1252-30-3062
Glasgow, G62 7LF, Scotland | http://www.agctel.co.uk
<http://www.agctel.co.uk>
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