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     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 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.


    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: