which case Verizon may
need to write thier own version of GR-1089 so that it is available to the
public or accept the new issue 3.
These are my opinions and not necessarily those of my employer.
Jim
Jim Wiese
NEBS Project Manager/Senior Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
g you need to
source any amount of current over a few amps).
Good Luck,
Jim
Jim Wiese
NEBS Project Manager/Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
> --
> From: J
Jim Wiese
Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
-
This message is coming from the emc-pstc discussion list.
To cancel your subscription, send mail to majord...@ieee.org
with the single
l the responses so far, it should definitely create some
interesting discussions at the TIA TR 41.7.1 meeting in Portland, OR. in
May.
Jim
Jim Wiese
Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
rt, there is no UL safety standard that covers network equipment at
this time. Although some newer types network equipment might be capable of
being Listed to UL 1950.
Jim
Jim Wiese
Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-9
a formerly Bellcore)
jbrun...@notes.cc.bellcore.com
973-829-2977
4.) Or simply respond to me and I will present it to TIA in May
Thanks,
Jim
Jim Wiese
Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@
across the country and unassembled at the far
end with TNV 1, TNV 2, TNV 3, and HVSC TNV? intermingled there until it
reaches the end customer.
Jim
Jim Wiese
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
>-
ot provide
2.0mm of insulation? If so what is the rational?
Thanks,
Jim
Jim Wiese
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
>--
>From: Jon D Curtis[SMTP:j...@world.std.com]
>Sent: Wednesday
Thanks Tania,
I appreciate the support.
Answers to questions like these are VERY important in trying fit telco
owned equipment into the IEC 950 based standards which were written from
the CPE perspective.
Jim
Jim Wiese
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
ires equipment to pass the Lightning and Power Fault tests in
section 4.
Jim
Jim Wiese
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
>--
>From: Jan Purwin[SMTP:pur...@tiac.net]
>Sent: Wednesday, A
tage telco services could be faulted by the telco provider
inadvertently and therefore this type of fault is accounted for by the
dielectric test (and other restrictions) between SELV/chassis and TNV 1,
and TNV 3.
Any input would be appreciated and helpful.
Thanks,
Jim
Jim Wiese
ADTRAN, INC.
901 Exp
Experience is relative, but I would say we have been fighting the same
issue for over a year now. between in-house burn tests and tests at
various NRTL labs, we have burned over 40 shelves varying in height from
1 RU to 6 RU. We have discussed this issue several times with Bellcore
and they concu
Ron,
Of those 13 NRTL's you listed, 6 of them claim to perform NEBS testing.
They are CCL, ITS, SWR, UL, MET, and WYLE. Not all of them can do all
of the testing and not all of them are as proficient as others. Be sure
to ask where your evaluation is performed. Some of the NRTL's have
facilitie
Dear Colleagues,
I have a question regarding safety of a customer premise device that is
typically owned by a residential customer. It is an ISDN device with a
U-interface, a RS-232 data port, and two independent POTS ports. The
POTS ports are used to provide analog service to a standard phone v
Yes!
However I believe it was around 1988.
The C.O. that burned down was in Hinsdale, Ill. just outside Chicago.
It was an unmanned remote office that just happened to have all or must
of the long distance trunks in and out of Chicago running through it.
Places like O'Hare airport and the Chicago
And there in lies the problem Vic.
THEY DO NOT WANT NOR DO THEY LIKE REPEATERS
Repeaters are very high maintenance items. At least here in the United
States young kids and immature adults seem to think it is "cute" to
shoot their guns at the telco's repeater housings. In
Many Thanks,
Where does one get these guides??
Jim
James Wiese
Regulatory Compliance Engineer
ADTRAN, Inc.
205-963-8431
205-963-8250 FAX
jim.wi...@adtran.com
>--
>From: Randolph Ivans[SMTP:iva...@ul.com]
>Sent: Wednesday, January 28, 1998 2:28 PM
>To:treg@world.std.com
>Cc:T
Thanks for an excellent explanation Vic.
An additional point to ponder.
Ameritech specifically requires a listing to UL 1459 or UL 1950 in their
RFQ's.
Bell Canada specifically requires a listing to CSA C22.2 M225(Canadian
equivalent to UL 1459) or the CSA 950/UL1950 3rd edition in their
RFQ's.
AMAZING!!!
For years, I have blown off the UL categories as some form of lingo that
only UL understands. Of course I'm not so sure that this is still not
the case. I've never heard a customer ask if I'm listed to "DUZO" or
"NWGQ" or "WYQQ". Are these categories used by CSA, ITS, CCL and other
N
Doug,
I've been in the same situation. Here is basically what I believe to be
correct based on multiple conversations with ITS and UL regarding UL
1950 3rd Edition and EN60950 amd 4.
1.) At first glance, it would appear that UL 1950 3rd Edition would
require basic insulation between your T1/E1
listing. Am I wrong? How would one get a listing if UL1950
states that creepage must be >1.5mm and the connector creepage is say
only 1.0mm. Are these deviations published somewhere? Do other NRTL's
other than UL do this?
This is truly something totally new to me! I want to hear more!
Telco equipment owned by a telco service provider is typically not
required to be "Listed" or "Recognized" to a UL standard unless it
resides at the customer premise (per Bellcore GR-1089-CORE). Ameritech
also requires all of its equipment to be Listed or Recognized regardless
of location.
By th
ADTRAN, Inc. has a position available for a compliance engineer at its'
Huntsville, AL facility. Responsibilities will include Bellcore NEBS
and/or UL safety testing. Please read the attached document if
interested.
Thanks,
Jim
James Wiese
Regulatory Compliance Engineer
ADTRAN, Inc.
205-96
use of DC power: see section 6.5.
>However, since our products should be compatible with older equipment as
>well, your advice is excellent.
>
>Thanks again,
>Dorin
>
>JIM WIESE wrote:
>>
>> The requirements for a T1 CSU are located in Bellcore TR-TSY-000312
The requirements for a T1 CSU are located in Bellcore TR-TSY-000312
Issue1, March 1988. Section 2.3 will give you the detailed answer your
looking for, however the short answer is you do need to provide the DC
path. The reason is that midspan repeaters will not function if the
path is broken. T
epts amendments 1, 2, or 3 but not amendment 4
3.) Since it is a CB scheme report, Japan must accept amendment 4
All three stated there are specific Japanese deviations.
Thanks,
Jim Wiese
ADTRAN, Inc.
jwi...@adtran.com
205-963-8431
to be located on the customer
premises shall be Listed for the purpose by an NRTL"
Jim Wiese
ADTRAN, Inc.
jwi...@adtran.com
--
From: treg-approval
To: INTERNET:treg@world.std.com
Subject: RE: BOUNCE treg@world.std.com: Non-member submission from
[martin_je...@juno.co
never be used in network interfaces
unless they can be improved vastly beyond the current technology. Hopefully
Bellcore will address these PTC's in future revisions of GR-1089-CORE.
Jim Wiese
ADTRAN, INC.
--
From: treg-approval
To: 'TREG'
Subject: Bellcore 1089
. building inspectors vs.
customers)?
Any info is helpful. Thanks in advance.
Jim Wiese
ADTRAN, Inc.
205-963-8431
205-963-8250 fax
j.wi...@adtran.com
appreciate any
help.
Thanks in Advance,
Jim Wiese
ADTRAN, Inc.
205-963-8431
205-963-8250 fax
jwi...@adtran.com
Joe,
If you use Amendment 4 of IEC 950, and fall into the TNV-1 category, you can
use operational insulation and a dielectric test between SELV and TNV. Of
course amendment 4 is not universally accepted (i.e. Australia), but UL will
allow the TNV 1 conditions when evaluating to UL-1950 3rd Ed
Maybe I'm totally missing the point, but I think what Rick Towner initially
might have been asking is;
If the customer were given the choice of a product that costs $10.00
without a CE mark or a product that costs $12.00 with the CE mark, which
would he/she choose.
Another way to put this is
For ISDN there is no ringing. the only voltages that are present on the TNV
circuit are a +-3V peak 2B1Q signal and possibly 48VDC.
Jim Wiese
ADTRAN, Inc.
--
From: treg-approval
To: treg
Subject: Re: ammendment 4 TNV working voltage determination
List-Post: treg@world.std.com
Date
997 3:45PM
-- Forwarded Message --
From: JIM WIESE, INTERNET:jwi...@adtran.com
TO: emc-pstc, INTERNET:emc-p...@ieee.org
treg, INTERNET:TREG@WORLD.STD.COM
Jim Wiese asked:
We have an ISDN terminal adapter with an ST interface that we would like to
market in Japan. I
SELV. These units are powered by AC to DC wall packs and do not have
internal AC supplies.
Thanks,
Jim Wiese
ADTRAN, Inc.
jim.wi...@adtran.com
205-971-8431
A
, the
voltages are creeping up not going down in telecommunications equipment. So
I strongly disagree that this problem will dry up and go away.
Jim
--
From: Victor L. Boersma
To: JIM WIESE
Cc: emc-pstc; owner-emc-pstc; treg
Subject: Re: Proposed changes to UL 1950 3rd Edition
List-Post
I'm looking for comments to the following:
I just received my copy of the draft proposal of UL1950/CSA 950 to
incorporate changes in IEC 950 4th amendment. This was worked up by the
Bi-national Working Group for Information and Technology and
Telecommunications Equipment. It is dated Februar
networks. For Europe, we had to lower the voltage to 113.5VDC (<120 peak),
and this affects the distance we can go, but EN60950 limits us to the 120V
peak without considering the telco interface a power supply and having to
meet alot of additional (impractical) requirements.
Jim Wiese
ADTRAN,
Span powered means that a DC voltage and current are used to provide
powering to a device at the customer end or to a mid span repeater. T1, E1,
DDS, HDSL, and ISDN all have devices which are sometimes used by the Telcos
to extend or terminate these services. These devices typically (but not
Try section 7 of Bellcore GR-1089-CORE. It allows as much as 200 VDC from
tip or ring to ground provided that the current when measured tip to ground
or ring to ground does not exceed 10 mA (Class A3). In reality, vendors of
central office ISDN typically generate -48VDC 10-20 mA DC for non-s
of them use
outside plant wiring that can be exposed to lightning and power faults.
This is why Bellcore GR-1089-CORE has such an exhaustive testing procedure
for Lightning and Power Faults. It is far more comprehensive than UL 1950,
IEC 950, EN60950 or UL 1459.
Jim Wiese
ADTRAN, Inc.
jim
GR-63-CORE is named NEBS, but
don't get caught in the trap of not knowing what you need to do. Bellcore
has held 2 seminars on this in the past year and I assume they will hold
more in the future. It is a great place to meet the RBOC customers and get
clarification on the standards.
Jim Wi
e 20 of UL 1950 3rd Edition
Ball -pressure apparatus in Figure 21of UL 1950 3rd Edition
Measuring Instrument for earth leakage current tests in Annex D of UL 1950
3rd Edition
Any information on these items will be greatly appreciated
Thanks,
Jim Wiese
ADTRAN, Inc.
901 Explorer Blvd.
Hunstville, AL
Does anyone know when the FCC Part 68
Jim Wiese
jim.wi...@adtran.com
Courtesy of RCIC
http://uc.com/compliance_engineering/
?
At the TIA meeting in Ft. Meyers in late February we were told "any
day". Which as I understand it, is different than "imminent" which in
government terms is 10 months to 1 year, such as with harmonization with
Canada for CS-03.
Any info would be very welcome.
Jim Wiese
jim.wi...@adtran.com
Time: Wed Dec 13 15:29:24 1995
Logfile: d:\public\html\bin\log\mt95121300.log
name: Jim Wiese
I have been told that E1 products in Europe must comply with CTR 12
and/or CTR 13 for Stuctured and Unstructured E1. Could someone please
give me some information on what Structured E1 and Unstructured
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