In message 1376519590.33659.yahoomail...@web161404.mail.bf1.yahoo.com,
dated Wed, 14 Aug 2013, Marko Radojicic radojic...@yahoo.com writes:
Has anyone seen a list or a description of where Telecom Central
Offices with -60Vdc (nominal) battery plants are located?
It should be possible to
Hello,
Are the standards ANSI Z 535.4 Standard for Product Safety Signs and
Labels and Z 535.6 Product Safety Information in Product Manuals,
Instructions, and Other Collateral Materials accepted in Canada? If not,
does anybody know similar CSA standards?
Best regards
Dipl.-Ing.
We use Z535.4 for all of our warnings labels that are used in USA and Canada,
and I know of no problems that we've ever had with them.
Mike Sherman
Graco Inc.
- Original Message -
From: Michael Loerzer loerzer_mob...@globalnorm.de
To: EMC-PSTC@LISTSERV.IEEE.ORG
Sent:
There is no Canadian equivalent for product safety signs and warnings. CSA Z432
calls out CSA Z321, but the scope of that standard specifically excludes its
use with products. Based on that, most Canadian companies use either the ANSI
Z535 standards, the International standards or a combination
Hi Joe, Tom,
Thanks! I was not aware of ETS 300 001. Since this standard is available free
of charge (thanks ETSI), I could quickly review.
It appears that you are getting information from Table 1.5.1, Column Vf, with
any maximum level that equals 60V. If that is not correct, please let me
In this regulation, it covers IT equipment. Routers and Access Points for
household are intended for switching on 24/7. I see no power on/off switch
and standby in such equipment. Is it exempted from this regulation? If so,
where is the statement to provide such exemption?
Thanks and regards,
In message 1376584007.22394.yahoomail...@web161401.mail.bf1.yahoo.com,
dated Thu, 15 Aug 2013, Marko Radojicic radojic...@yahoo.com writes:
What is the best way to submit a question to ETSI?
You may have to try several ways to contact the best person. The
Committees and Portals page will
Hi Marko:
It is important to understand that over time, a variety of different
central offices were installed in various countries, and these sometime
used different battery voltages. The entries in Table 1.5.1 in ETS
300 001 represent what each country reported having in service at the
time the
Just to add to this question, are access points sold to schools classified as
household use? And what if the access point is USB powered for a computer? Is
it still in scope?
W. Richard Gartman, MS, CSP
Product Stewardship Manager
Texas Instruments, Education Technology
13532 N Central
Hi Joe,
Thanks for the clarification. I wouldn't want to be living on one of those
long loop / double battery lines. Sounds dangerous!
My original intent was to understand the safety implications exposures of
-60V battery plant feeds. Agree with the TNV rating although our experience has
Hi Marko:
Conventional analog phone lines are typically classified as TNV-3.
They get this classification because they run outside (exposed to
lightning) *and* they have AC power ringing signals on them.
If the lines run outside but do not carry AC power ringing signals, they
typically qualify
As Joe indicates, higher than normal voltages can exist on long loops. Even
in Canada voltage could go up to -105Vdc on a very long loop.
Regards,
Tom Smith, P.Eng
Principal Engineer
TJS Technical Services Inc.
Tel: +1 403-612-6664
Email: mailto:tsm...@tjstechnical.com
Hi Joe,
Totally agree that telecom interface lines are usually TNV-3. I am looking at
the other end of the system however - the battery input to the network element
which are classified as TNV-2, agreed?
CO Battery feeds:
- Run inside for relatively short lengths compared to interface lines,
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