ADMINISTRATIVE COUNCIL FOR TERMINAL ATTACHMENTS (ACTA)
rdthMEETING DATE: 3 – 7 November, 2008
TITLE: TIA TR41 (Predominantly SDO TR41.9) Liaison Report
SOURCE: John Bipes
PURPOSE: Informative / Liaison Action
thrdReport to the ACTA 11 December Meeting, from SDO TIA TR41 – week of 3
November, 2008, Costa Mesa, CA.
(On contributions, use the source organization’s disclaimer. On Council documents, use the ACTA
disclaimer shown below)
This is a draft document and thus, is dynamic in nature. It does not reflect a consensus of ACTA and it may be changed or modified. ACTA makes no representation or warranty, express or implied, with respect to the sufficiency, accuracy or utility of the information or opinion contained or reflected in the material utilized ACTA further expressly advises that any use of or reliance upon the material in question is at your risk ACTA shall be liable for no damage or injury, of whatever nature, incurred by any person arising out of any utilization of the material. It is possible that this material will at some future date be included in a copyrighted work by ACTA.
; CONTACT: John Bipes, ACTA OIP-Primary 507-345-7169
TR41.9.1 – Day 1:
1) Scott Roleson presented his latest editorial updates, rationales, etc., to TIA-968-B, Draft 10 (PN-3-0016-RV2). It is expected to go to ballot, Feb., 2009.
2) I presented TR41.9.1-08-11-003_R1, “Longitudinal Voltage Measurement
Termination Analysis” which clarifies some technical requirements required to accurately measure Longitudinal Voltage in 100Ω and 135Ω digital equipments. It was decided to clarify TIA-968-B to specify an analyzer input impedance “(>10k)”
in the several test circuits.
3) Discussed whether or not the limitation on transmission of 40 DTMF digits should change (Trone Bishop‟s contribution TR41.9.1-08-11-004, “Limitations on
Signals Primarily Intended for Network Control”.). Some technical details of
DTMF signaling were added to TIA-968-B but the DTMF digit count was not changed. (See items 19 & 20 below.)
4) In this new era of PPL (broadband over power lines), there was discussion on the range of TE utility mains AC voltages understood but not specifically spelled
out in the present Leakage Current voltage limitations contained in TIA-968-A et al (Trone Bishop‟s contribution TR41.9.1-08-11-005, “Proposed Leakage current
limitations for terminal equipment connected to a voltage source greater than 250V.”). In the Leakage Current section of TIA-968-B specific language was added to state that this document is assumed to apply to TE in the mains potential environment, i.e., less than 250VAC rms, not normally tied to HV power transmission potentials of many kV. AC.
Furthermore, we discussed the need for development of standards applicable to TE which would protect the PSTN from kV. Potentials (ex. DS1 to BPL equipments, etc.)
5) Discussed proposed VDSL2 requirements Trone Bishop‟s contribution TR41.9.1-08-11-006, “Proposed corrections to VDSL2 requirements in dpANS
6) The missing references cited in Cisco‟s Tim Lawler contribution TR41.9.1-08-
11-007 were reviewed, accepted and placed into TIA-968-B.
7) Discussed the way of properly annotating “47CFR Part 68…”. It was decided to keep it as it is in TIA-968-B pending an definitive reference otherwise (Dan Bart‟s suggesting ‟47 C.F.R….‟ notwithstanding.)
8) Discussed Amar Ray‟s contribution re. troubles with ADSL using „Common Load Coils‟ on long subscriber loops. Ray maintains that if it‟s a wide-band loop a
„Smart Coil‟ should be used. Amar Ray‟s concerns were discussed but they were determined to be beyond the scope of TR41 (and the ACTA) as it is deemed a „performance‟ not a „harms‟ issue. It should be forwarded to NIPP-NAI.
9) TIA-968-B, Draft 10, is now saved as MR1…now believed to be complete. It‟s now ready for editorial corrections and submission to TR41.9.
The WG spent the remainder of the day reviewing the draft of TIA-968-B towards its completion, balloting, acceptance by ANSI, and it‟s going to the ACTA – finally
becoming the new comprehensive ACTA Adopted Technical Criteria superseding TIA-968-, Addemdums A-1 through A-5. (See also Item 23 below.)
TR41.9 – Day 2:
10) The ACTA Report to Costa Mesa was given.
11) TCB Council: Roger Hunt asked for updates; Scott Roleson attested to the Baltimore TCBC meeting having happened and stated the particulars are available at the TCB Council Website www.tcbcoucil.org. The winter 2009 TCBC thnormally held in San Diego is, instead, to be held in Las Vegas, 24-26 Feb.,
2009 at the Westin Casuarina Hotel.
12) Revised CS-03, Part 5 is now published – including dialing requirements for nddigital equipments. TAPAC meets the 2 week of November.
13) FCC actions since the last meeting: These actions were verbally summarized.
14) Guest speaker to SDO TR41 re. International Standards: This invitation fell into some proverbial crack between the several TR41-something chairs. However, word has it that Steve Bipes has agreed to speak to TR41 in Savannah in February, 2009. Scott Roleson asked if it could include „foreign‟ as well as „international‟ standards.
rd15) TSB-31-C-81 was published yesterday, 3 November, and is available on the
TIA Website. Roger Hunt discussed the Test Generator Matrix (which does not yet include Addendum 1 – TIA is working on developing protections (to prevent changing cells in the matrix, etc.)
16) TSB-129-B: It‟s being updated but probably won‟t be completed till 968-B is
17) Glossary update (TR41.9-08-05-008) is to have TIA-1096-A and FCC Pt.68 added as source documents and then posted as a link at TR41 Main Website. New terms are being added regularly.
18) ANSI Scope C update: It was decided to delay any offers of subsequent annual update to ANSI to the November, 2009 meeting.
19) Discussed Trone Bishop‟s TR41.9-08-05-004 contribution on the 40 digit
DTMF dialing. A substantial part of the tutorial letter to Juichi Hondo (Staff Engineer - Inkjet Quality Assurance Center - Canon Inc.) will be Trone‟s bullet
points in TR41.9-08-05-004, ex.:
; TTE may not generate DTMF signals for network control signaling, or any other
application, at a signal power level greater than 0 dBm averaged over any 3 second
20) TSB-31-C Rational: There are items accumulating for an update of the „Rationale‟ part of TSB-31-C; ex., on DTMF dialing.
21) Report from Phil Havens on Energy Star Requirements; new version 2.1 strelaxes the standby power requirements as of 1 November, 2008. Telecom
charging bases are exempt from the no-load requirements.
22) Roger Hunt‟s company is asking for determination of where the marking for HAC be located, on the base or on the handset of the cordless TE? Scott Roleson directed Roger to the FCC‟s KDB (Knowledge Database) where his
answer may located.
23) Trone Bishop moved to move TIA-968-B (when edits are complete) for balloting. Scott Roleson seconded the motion. Release of the draft for ballot to happen in January. Ballots will be received after the February meeting of TR41. Ballot comments to be handled at the May, 2009 meeting.
thNext meeting of TR41.9 is scheduled for Savannah GA, 9-13 February, 2009
TR41.7.5 – Day 3:
24) UL2564, Issue 1, the current issue, is on the UL Website. Errors were listed thin a letter sent to UL on 19 May, 2008. At the 1-year mark – February or May,
2009 - it‟ll be reviewed and become Issue 2. Meanwhile, the errors will be corrected in an Addendum to UL2564. The committee is moving onto Issue 2.
thNOTE: A letter to UL, dated 6 November, 2008, requesting Subjects 2566, -67, -69 and -70 be better identified as parts of Subject 2564 to retain these as necessary components of 2564 was drafted.
25) My work as the ACTA SDO representative continues with this particular WG encouraging development of the Application Guide of UL Subject 2564, TSB-187 th(PN-3-0340), Draft 3, 6 August, 2008: “UL Subject 2564 Low-Voltage Surge
Withstand Telecommunications Overcurrent Protector Component Application Guide”.
NOTE: These PTC-type protectors appear in the network interfaces of TE and their correct application and use is significantly related to TE appropriately designed/tested/listed on the ACTA database.
IMPORTANT PEOPLE ANNOUNCEMENTS:
Roger Hunt, SDO TR41.9.1, TR41.9 vice-chair and ACTA Mfgr. Segment Representative, announced that he and his entire telecom group of 50 at
Thomson in Indianapolis is being terminated almost immediately – perhaps as ndearly as the 2 week of November, 2008. (Thomson is apparently relocating the division to Asia.) Roger, a 13-year Thomson employee, has been a very significant contributor to TR41 and to the ACTA these past few years. Whether or not Roger will be able to continue with TR41 or the ACTA is not known –
probably not unless his expertise is recognized and retained by another telecom employer.
Mick Maytum, U.K., is being dropped by Bournes, Ltd., and is therefore retiring ndas of 2 January, 2009. Mick‟s a veritable encyclopedia of telecom TE and TE protector experience. While he‟ll try to continue his participation with the IEC in
Europe and with the IEEE, it‟s unlikely he‟ll be able to continue any involvement with SDO TR41.
TR41.7.1 – Day 4 AM:
26) “The mission of TR41.7.1 WG is to monitor international and North American telecommunications equipment safety issues and provide recommendations to standards organizations such as IEC, UL and CSA for harmonized telecommunications equipment safety requirements and standards.”
27) TR41 delegate to THC (Technical Harmonization Committee) 62938 (of IEC-62938) Phil Havens was not present in Costa Mesa.
However, based on the results of CDV1 for IEC 62368 and upcoming IEC TC108 meetings, a second CDV was issued in July 2008. Before THC 62368 can begin work to develop a draft CSA/UL version of the Standard, the results of the second CDV will have to be available.
A mid January 2009 TC 108 meeting will resolve any “no” votes for the CDV2, which is due Dec 19, 2008. First of March or mid Feb 2009 is hopeful date for FDIS (final draft international std). So this THC will not have a document to work with until that time date. This first meeting will probably be a three day meeting. Comments were made on:
electrical shock section
lithium battery section
touch temperature section
fan blade “K” factor section
The candle flame section is being moved to an Informative Annex Y to resolve the “no” votes on this topic.
3. Status of Amendment 1 to IEC 60950-1
This will go forward as an MT2 effort. CDV97 is out for comment now, with
due date of October 3. FDIS optimistically could be ready mid November
time frame. Final “IS” (International Std) publication is expected during
second quarter of 2009.
4. Status of Amendment 2 to IEC 60065-1
Amendment two failed due to the candle flame section. Therefore CDV2 will
be issued that removes the candle flame section. It is hoped that this can go
out as a two month voting cycle initially going out end of August or beginning
of September. A publication of IS by mid 2009 is anticipated.
Review of 60950 Standards:
a. Hazard Based Standard – IEC 62368; UL/CSA 62368, SAFETY OF
ELECTRONIC EQUIPMENT WITHIN THE FIELD OF AUDIO/VIDEO,
INFORMATION TECHNOLOGY AND COMMUNICATION TECHNOLOGY.
b. Current Bi-National Standard UL/CSA 60950-1 (US/CANADA)
Acoustic Requirements ndc. IEC 60950-1; IEC 60950-1 2 Edition.
d. 60950-21 (RFT Circuits)
e. 60950-22 (Equipment to be Installed Outdoors)
28) Allen Woo, Plantronics, provided updates on 60950-1, and difficulties of TCBs testing with acoustic couplers…and especially with TE running intelligently adaptive digital software. He also commented on:
5. New Proposal for CSA/UL 60950-1
UL received a proposal from TIA TR41.7 to revise the Acoustic limits in
NAD.3 and NAD.4. As the first step in the Standards development process
for a bi-national Standard, all proposals are to be reviewed by the THC.
There was long discussion re. testing TE – particularly cordless phones – for
maximum SPL (ex. +140dB) acoustic levels with electrical impulse fault surges applied.
29) It was noted that the first edition of IEC 62368 will possibly be an optional standard and that IEC 60065 and IEC 60950-1 will not be withdrawn until the second edition of IEC 62368 is published.
TR41.7 – Day 4 PM:
30) Discussed the work of TR41.7 subcommittees and WGs; scope/mission Environmental and Safety Considerations.
31) A question I raised was what kind of „mileage‟ – what kind of use / what are
the Neilson Ratings – on the use of these standards the SDOs develop. A lively discussion followed.
Which raised – for me – the question on whether or not we‟ve got
a .pdf/download counter behind the scenes counting the number of hits/downloads of ACTA Adopted Technical Criteria?
32) Discussed the standard re. RFI to TE (Radio Frequency Interference to Telecom Terminal Equipment), TIA-631-A, and Steve Whitesell‟s new
TR41 Plenary – Day 5 AM:
33) TR41 Chair Steve Whitesell called the plenary to order promptly at 8AM and ran through Introductions, Intellectual Property Rights, introductory Chairs Remarks, Notices of Participations, Agenda, etc. 8 of 10 quorum members were present. Chair, Steve Whitesell, V-Tech; Vice-chair, Al Bohm, Uniden.
34) TR41 Chair Steve Whitesell further reported on / discussed:
SDO TIA‟s Engineering Manual is available at
Info. was shared on documents numbering (using dots vs. dashes), dots
beat-out the dashes. Subcommittees not to be nested under parent
committees. A temporary folder is proposed for all documents for any
particular upcoming meeting.
Future meetings – locations / hotels.
35) Stephanie Montgomery, TIA, reported on:
SDO TIA‟s green initiatives, meeting locations concerns, belt-tightenings
36) TR41.3 Chair Al Bohm, Uniden, reported on the status of:
Industry ballot on TIA-1083-A; Due to error TIA-1083…to become Rev. A w.
an addendum. Stimulus lever for digital sets; 3dB offset from analog stimulus
level decided upon. (Steve Whitesell‟s / Don McKinnon‟s recommendations
on a new method of establishing an input reference level [not based on
acoustics]. Scope of G.711 was kept. Target completion date 05/2009.
Speakerphone issues: RLR requirements replaced by receive levels. New
name; Transmission Requirements for Analog Speakerphones.
PN-3-4350.330 Telephone Answering Devices (to become TIA-470.330-C
reviewed new contributions from Embarq.
PN-4705-RV1, Transmission Requirements for Wideband Digital Telephones
(to become TIA-920.110-A, Draft 01. Changed name to Transmission
Requirements for Wideband Digital Telephones with Handsets. Concerns w.
the availability of wide-band signals. Target completion date 02/2009 (first subdocument). Both Handset and Headset documents to be available for balloting by February, 2009, Savannah.
PN-3-4159-RV1, Automatic Stutter Dialtone Detection Performance (to become TIA-855-A). The draft document was reviewed and accepted. Incorporated changes for the majority of subscribers who don‟t have the stutter-dialtone feature.
TIA-470.000-D Draft Letter Ballot; basically a table of contents. Draft document was accepted and is out for balloting.
TIA-470-210-C (up for 5 year revision): Draft document was accepted and is out for balloting.
TIA-470.310-C – range test document, deck telephones (up for 5 year revision): Draft was edited and accepted. Was accepted and is out for balloting.
37) TR41.7 & TR41.7.1 Chair Randy Ivans reported on the status of:
PN-3-XXXX; Ethernet First Mile Overvoltage Tests. (RJ-45 connections.)
Title-changed to AC Power Fault and Lightning Surge Requirements for Ethernet in the Outside Plant. No contributions were received, i.e., no
action. Completion, early 2010? If there are no contributions received – even
after attempts at stirring interes (Steve Whitesell doing), the project may be dropped. Mick Maytum‟s retirement may well discourage activities.
TR41.7.5: Chair Carl Lindquist‟s, SOC America, work on the Telecom Circuit
Overcurrent Protectors Application Guide is all but totally finished – formatted
and final nuances to be completed in February, 2009, Savannah. To become a TSB-. Work with the revision proposal of UL Subject 2564 – as an RV1 –
was completed. Letter to UL was drafted requesting updates; was accepted for sending to UL.
SP-3-3210-RV2; Revision of TIA-631-A to become -B; telephone RFI standard to make it applicable to a wider variety of TE (speaker-phones/handset-phones [all analog, not digital]). Steve Whitesell‟s
contribution on test methods was discussed briefly; Steve‟s agreed to convert
his contribution into text for an Annex. Targeted completion date, May, 2009, is now slipping to end-of-the-year 2009.
38) TR41.9 Chair Roger Hunt reported on the status of:
SP-3-0016-RV2, Technical Criteria for Terminal Equipment to Prevent
Harm to the Telephone Network (to become ANSI/TIA-968-B). Editorial
cleam-up is being finished.
Current Status: Mid-January ready for TIA/ANSI balloting – pending
final editing clean-up.
PN-3-0017-RV2, TSB-129-B: Telecommunications - Telephone Terminal
Equipment - U.S.Network Connections Regulatory Approval Guide.
Current Status: Two contributions received. First draft uploaded to TIA
website February, 2009 work will resume in TR41.9.1 WG.
PN-3-3602-AD1, Rationale and Measurement Guidelines for TIA-968, rdAddendum 1, TSB-31-C-AD1. Submitted for publication on 3
PN-3-4124, Responses to Part 68 and TIA-968 Questions (FAQ list - On-
Current Status: Dealt with number of DTMF dialing digits at this
meeting. Response is being posted on the TIA/FTP Website.
Target Completion Date: N/A
TR41.9 may may have a guest speaker in 2009 to discuss international
standards. Steve Bipes, Director of International, Regional & Bilateral
Policy, ANSI, is being invited to Savannah in Feb., 2009.
Roger Hunt gave his farewell to SDO TR41…which thanked him for ten
years of great service. He requested any supprt we might give him as
references for any new job opportunities.
39) TR41 Chair Whitesell reviewed a number of housekeeping and heads-up TR41 issues:
No liaison reports.
TR41.3 Report: Al Bohm, Uniden, reported – via an Excel Spreadsheet – on
the status of the host of SDO TIA‟s Standards, their